[AE1918 MOCNESS Continuous] - Continuous MOCNESS data files from R/V Atlantic Explorer cruise AE1918 during July 2019 (Collaborative Research: Diel physiological rhythms in a tropical oceanic copepod)

AE1918 was a cruise of opportunity on which two oceanographic sampling activities were conducted: a CTD cast and a MOCNESS net tow. These are the continuous underway data from the MOCNESS tow.

cdm_data_type = Other
VARIABLES:
tow (unitless)
date_start (unitless)
time_start (unitless)
time (ISO Date Time UTC Start, seconds since 1970-01-01T00:00:00Z)
cruise (unitless)
time2 (Time, unitless)
pres (Pressure, decibars (dbar))
temp (Temperature, degrees Celsius)
theta (kilograms per cubic meter (Kg m-3))
sal (PSU)
sigma (kilograms per cubic meter (Kg m-3))
angle (degrees)
flow (counts)
hzvel (meters per second (m s-1))
vtvel (meters per second (m s-1))
vol (cubmic meters (m3))
net (unitless)
latitude (degrees_north)
longitude (degrees_east)
GPSTIME (unitless)
depth (CTDDEPTH, m)


[AE1918 MOCNESS Nets] - MOCNESS net data from R/V Atlantic Explorer cruise AE1918 in July 2019 (Collaborative Research: Diel physiological rhythms in a tropical oceanic copepod)

AE1918 was a cruise of opportunity on which two oceanographic sampling activities were conducted: a CTD cast and a MOCNESS net tow. These are the net data from the MOCNESS tow.

cdm_data_type = Other
VARIABLES:
tow (unitless)
date_start (unitless)
time_start (unitless)
time (ISO Date Time UTC Start, seconds since 1970-01-01T00:00:00Z)
cruise (unitless)
Date (unitless)
time2 (Time, unitless)
TC (Temperature Correction, unitless)
FC (counts)
NewVol (New Vol, cubic meters (m^3))
Pres (Pressure, decibars (dbar))
Temp (Temperature, degrees Celsius)
Cond (PSU)
Salinity (Sea Water Practical Salinity, PSU)
Angle (degrees)


[AE2413 Bacterial productivity] - Bacterial productivity of samples from three stations in the Western North Atlantic aboard R/V Atlantic Explorer cruise AE2413, during May 2024 (Collaborative Research: Pressure effects on microbially-catalyzed organic matter degradation in the deep ocean)

Heterotrophic bacteria and archaea (here: microbes) are critical drivers of the ocean's biogeochemical cycles, active throughout the depth of the ocean. Their capabilities and limitations help determine the rates and locations at which carbon and nutrients are regenerated, as well as the extent to which organic matter is preserved (Hedges 1992). In the deep ocean, at bathy- and abyssopelagic depths (ca. 1000-6000m), these communities are dependent upon the sinking flux of particulate organic matter (POM) from the surface ocean (Bergauer et al. 2018). This dependence means that heterotrophic microbial communities must produce the extracellular enzymes required to solubilize and hydrolyze high molecular weight (HMW) POM to sizes substrates suitable for cellular uptake. A recent global-scale investigation of deep-sea microbes in fact found that the genetic potential for exported (extracellular) enzymes among bacteria in deep waters was far greater than for communities in surface or mesopelagic waters (Zhao et al. 2020). We have new evidence that a substantial fraction of bacteria in bottom water from the North Atlantic Ocean use a specialized set of extracellular enzymes to rapidly take up HMW polysaccharides (Giljan et al. 2021), a substrate processing mechanism that would not be detected with the low molecular weight substrates used in most prior studies of microbial activity in the deep ocean (Nagata et al. 2010).

Through our collaboration with the Danish Center for Hadal Research, we were able to use pressurization systems and in situ specialized equipment to investigate the effects of pressures characteristic of bathy- and abyssopelagic depths on microbial communities and their extracellular enzymes in the open North Atlantic Ocean.

Here we present the measurement of 3H-leucine incorporation by heterotrophic bacteria using a cold trichloroacetic acid (TCA) and microcentrifuge extraction method (Kirchman, 2001) at different sites in the Western North Atlantic aboard R/V Atlantic Explorer during during the research cruise AE2413 (2024-05-09 to 2024-05-28).  All work and incubations were performed in a UNOLS isotope lab, or within designated areas at the University of North Carolina at Chapel HIll post cruise. This dataset contains collection metadata, environmental conditions, sample types and treatments, incubation conditions, substrate types, radioactivity measurements, and calculated incorporation rates of 3H-leucine.

cdm_data_type = Other
VARIABLES:
deployment (unitless)
... (24 more variables)


[AE2413 FlaPS bulk] - Polysaccharide hydrolase activities from water samples collected at various sites under varying hydrostatic pressures in the Western North Atlantic aboard R/V Atlantic Explorer cruise AE2413 in May 2024 (Collaborative Research: Pressure effects on microbially-catalyzed organic matter degradation in the deep ocean)

Heterotrophic bacteria and archaea (here: microbes) are critical drivers of the ocean's biogeochemical cycles, active throughout the depth of the ocean. Their capabilities and limitations help determine the rates and locations at which carbon and nutrients are regenerated, as well as the extent to which organic matter is preserved (Hedges 1992). In the deep ocean, at bathy- and abyssopelagic depths (ca. 1000-6000m), these communities are dependent upon the sinking flux of particulate organic matter (POM) from the surface ocean (Bergauer et al. 2018). This dependence means that heterotrophic microbial communities must produce the extracellular enzymes required to solubilize and hydrolyze high molecular weight (HMW) POM to sizes substrates suitable for cellular uptake. A recent global-scale investigation of deep-sea microbes in fact found that the genetic potential for exported (extracellular) enzymes among bacteria in deep waters was far greater than for communities in surface or mesopelagic waters (Zhao et al. 2020). We have new evidence that a substantial fraction of bacteria in bottom water from the North Atlantic Ocean use a specialized set of extracellular enzymes to rapidly take up HMW polysaccharides (Giljan et al. 2021), a substrate processing mechanism that would not be detected with the low molecular weight substrates used in most prior studies of microbial activity in the deep ocean (Nagata et al. 2010).

Through our collaboration with the Danish Center for Hadal Research, we were able to use pressurization systems and in situ specialized equipment to investigate the effects of pressures characteristic of bathy- and abyssopelagic depths on microbial communities and their extracellular enzymes in the open North Atlantic Ocean.

Here we present the measurement of polysaccharide hydrolase activities above that measured for killed controls from various sites under varying hydrostatic pressures in the Western North Atlantic aboard R/V Atlantic Explorer, cruise AE2413 in May 2024.

cdm_data_type = Other
VARIABLES:
deployment (unitless)
station (unitless)
latitude (degrees_north)
longitude (degrees_east)
... (26 more variables)


[Aerosol REE and Th-232 data from northern Gulf of Alaska region] - Concentrations of the rare earth elements (REE) and Thorium-232 (232Th) from the northern Gulf of Alaska region (Inferring trace element inputs to North Pacific surface waters from Alaskan and Asian dust)

Concentrations of the rare earth elements (REE) and Thorium-232 (232Th) are presented for filtered air (dust) samples collected from the northern Gulf of Alaska region, including from Middleton Island (AK)(59.4214 N, 146.3493 W) and the Copper River delta  (60.4324 N, 145.0954 W). Size-fractionated samples were collected in November 2019, using a Tisch Volumetric Flow Controlled (VFC) high volume sampler (Tisch Environmental, TE-5170V- BL) outfitted with a Cascade impactor. The six size fractions collected ranged from <0.49 micrometers (um) to >7.2 um in diameter. This sampler technology is discussed in greater detail in Morton et al, 2013. Samples were filtered with acid-washed Whatman 41 (W41) cellulose fiber filters. Additional bulk dust samples were collected in October 2012, using a  Thermo Partisol Plus 2025 using Teflon filters. Samples were fully digested using concentrated nitric and hydrofluoric acids, following the approach of Morton et al, 2013. Samples were analyzed using a Thermofisher iCAP inductively coupled plasma mass spectrometer (ICP-MS) in KED mode, with He as a collision cell gas, adapted from the approach of Trommetter et al (2020). Concentrations were determined from standard curves using a REE ICP-MS standard from High-Purity Standards (that also contained 232Th). Three internal standards (Ge, In, and Bi) were added to both samples and standards, to correct for short-term variability in the instrument response and to evaluate stability of mass response during the ICP-MS run. Concentration estimates for the REE and 232Th were blank-corrected using full-process blanks that included filters deployed during times when there was no known dust deposition. Most of the full-process blank concentrations were 100 times or more smaller than the concentrations of our lowest standard (with the exception of Ce, the concentration of which was ~seven times smaller than our lowest standard. This means that our blank concentrations were very low but also not quantified extremely accurately. Our best estimates are that the full-process blanks, including filters, ranged from 0.02 picograms per square centimeter (pg cm-2) for Eu, Tb, and Ho, to 2 pg cm-2 for Ce. These blank concentrations were in all cases 40 times or more smaller than our lowest REE sample concentration for the <0.49 um size fraction with the smallest amount of dust, and ~3 orders of magnitude smaller than the signal of the largest samples. The REE data are also presented in a double-normalized format that first normalizes to concentrations of Post Archean Australian Shale and then normalizes to the mean REE concentration. The normalization approach is slightly modified from that of Serno et al, 2014.

cdm_data_type = Other
VARIABLES:
sample_description (unitless)
... (20 more variables)


[Algal Ash-Free Dry Weight - Cerro Mundo 2] - Nearshore Shallow Subtidal Macroalgal Preburn, Postburn and Ash-Free Dry Weight Data from October 2022 (Galapagos 2021 project) (Temperature Regulation of Top-Down Control in a Pacific Upwelling System)

Increased standing macroalgal biomass in upwelling zones is generally assumed to be the result of higher nutrient flux due to upwelled waters, However, other factors can strongly impact macroalgal communities. For example, herbivory and temperature, via their effects on primary producers and the metabolic demands of consumers, can also influence macroalgal biomass and productivity, respectively.  Although there is a fair number of studies looking at the interactive effects of herbivores and nutrients in both tropical and temperate regions, there is a lack of studies looking at these effects in tropical or subtropical upwelling regions. The purpose of this study was to measure the effects that herbivores, temperature, and nutrient availability have on standing macroalgal biomass. We manipulated nutrient availability and herbivory in six field experiments during contrasting productivity and thermal regimes (cool-upwelling and warm, non-upwelling season) on a subtidal nearshore rocky reef.

Here, we present the macroalgal biomass raw data (Preburn, Postburn, and Ash-Free Dry Weight) collected in the nearshore shallow subtidal during an October 2022 field experiment.

cdm_data_type = Other
VARIABLES:
Cage (unitless)
Treatment (unitless)
N (unitless)
Algae_Type (unitless)
Foil_cup_weight_g (grams)
Sample_and_foil_cup_weight_g (grams)
Preburn_weight_calculation_g (grams)
Ceramic_cup_weight_g (grams)
Sample_and_ceramic_cup_weight_g (grams)
Postburn_weight_calculation_g (grams)
AFDW_Preburn_minus_Postburn_weight_calculation_g (grams)


[algal classes] - ChemTax based chl-a of algal groups from R/V Atlantic Explorer cruises AE1102, AE1118, AE1206, AE1219 in the Sargasso Sea, Bermuda Atlantic Time-Series Station (BATS) from 2011-2012 (Trophic BATS project) (Plankton Community Composition and Trophic Interactions as Modifiers of Carbon Export in the Sargasso Sea 	)

ChemTax based chl-a of algal groups are reported from four cruises in the Sargasso Sea during 2011 and 2012.

cdm_data_type = Other
VARIABLES:
cruise_id (dimensionless)
date_gmt (unitless)
cast (dimensionless)
time_gmt (HHMM)
latitude (degrees_north)
longitude (degrees_east)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
depth (m)
sample (dimensionless)
size_fraction (micrometers)
cyanobacteria (micrograms of Chl-a per liter)
prasinophytes (micrograms of Chl-a per liter)
cryptophytes (micrograms of Chl-a per liter)
diatoms (micrograms of Chl-a per liter)
pelagophytes (micrograms of Chl-a per liter)
haptophytes (micrograms of Chl-a per liter)
dinoflagellates (micrograms of Chl-a per liter)


[Algal consumption data: Tegula with Cancer productus as the predator] - Algal consumption data from Tegula in the presence of the predator Cancer productus, displaying anti-predatory responses or not within mesocosms at Bodega Marine Lab in 2018 (Trophic consequences of ocean acidification: Intertidal sea star predators and their grazer prey)

To examine the impacts of fear removal on the strength of trophic cascades, we measured the amount of algae (Ulva spp.) consumed by Tegula funebralis that either displayed either an anti-predatory response to its predators, Pisaster ochraceus and Cancer productus, or ignored the predators. Additionally, we used two species of predators with differing consumption rates to test how predator traits might mediate the effect of removal on trophic cascade strength. The experiment was conducted within laboratory mesocosms at Bodega Marine Lab in 2018.

This dataset reports results for experiments with Cancer productus as the predator.  See "Related Datasets" section for results from the experiments with Pisaster ochraceus as the predator.

cdm_data_type = Other
VARIABLES:
Date (unitless)
Containers (unitless)
Crab (unitless)
Size (millimeters (mm))
Sex (unitless)
Table (unitless)
Initial (grams (g))
Final (grams (g))
Final_shift (grams (g))
Algae_consumed (grams (g))


[Algal consumption data: Tegula with Pisaster ochraceus as the predator] - Algal consumption data from Tegula in the presence of the predator Pisaster ochraceus, displaying anti-predatory responses or not within mesocosms at Bodega Marine Lab in 2018 (Trophic consequences of ocean acidification: Intertidal sea star predators and their grazer prey)

To examine the impacts of fear removal on the strength of trophic cascades, we measured the amount of algae (Ulva spp.) consumed by Tegula funebralis that either displayed either an anti-predatory response to its predators, Pisaster ochraceus and Cancer productus, or ignored the predators. Additionally, we used two species of predators with differing consumption rates to test how predator traits might mediate the effect of removal on trophic cascade strength. The experiment was conducted within laboratory mesocosms at Bodega Marine Lab in 2018.

This dataset reports results for experiments with Cancer productus as the predator.  See "Related Datasets" section for results from the experiments with Pisaster ochraceus as the predator.

cdm_data_type = Other
VARIABLES:
date (unitless)
time_local (Time, unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
pisaster (unitless)
pisaster_size (unitless)
container (unitless)
seatable (unitless)
Treatment (unitless)
snail (unitless)
start (grams (g))
end (grams (g))
algae_consumed (grams (g))
Day (count (days))


[Algal Habitat Coverage] - Percent cover of algal habitat types on a by-transect and/or subsample basis recorded during emergent and rapid emergent surveys conducted in the subtidal zone of northern California, Sonoma and Mendocino counties, from 1999 to 2023 (Collaborative Research: The effects of marine heatwaves on reproduction, larval transport and recruitment in sea urchin metapopulations)

The Kelp Forest Monitoring data record span surveys across 24 years from 1999 through 2023 at 20 locations on the Sonoma-Mendocino Coast, Northern California. Years without data, inclusive: 2002, 2020, 2021. These surveys are ongoing and are conducted by the California Department of Fish and Wildlife dive team with participation from dive program partners at UC Davis, UC Santa Cruz, Cal Poly Humboldt, Sonoma State and other dive programs and volunteers. Not all sites were surveyed in all years. Surveys prior to 2003 were not conducted by the same teams or with the same methods except that all surveys were done using Scuba along 30 x 2m transects randomly placed in the subtidal zone in rocky habitats dominated by bull kelp, Nereocystis luetkeana, forests. These randomly placed band transects surveys were stratified by depth (A=0-15, B=16-30, C=31-45, D=46-60 ft) as we know sea urchin and abalone populations differ by depth.

Data collected for algal habitat coverage from 17 years of those surveys (1999-2016) include quantification by percent coverage of six substrate/algal types: bare rock, canopy, encrusting, foliose, subcanopy, and turf. These data provide a baseline of algal coverage in the kelp forest before, during and after the major marine heatwave of 2014-2016 in northern California, Sonoma and Mendocino counties.

Algal composition in the subtidal has changed dramatically from the time before 2014 to post marine heatwave and sea urchin population explosion. The substrate is now dominated by encrusting algae including crustose coralline algae, Ralfsia, Hildenbrandia, and other fleshy crusts.

cdm_data_type = Other
VARIABLES:
Survey_Num (unitless)
DFW_short_code (unitless)
SiteName (unitless)
latitude (degrees_north)
longitude (degrees_east)
SurveyType (unitless)
SurveyDate (unitless)
Year (unitless)
... (13 more variables)


[Algal treatments] - Treatment description and growth parameters for Thalassiosira weissflogii generating d13C-AA, collected on R/V Meteor M77 in the Peruvian ocean margin from November to December 2008. (The Use of Nitrogen Isotopes of Amino Acids To Understand Marine Sedimentary 15N Records)

Treatment description and growth parameters for Thalassiosira weissflogii generating d13C-AA, collected on R/V Meteor M77 in the Peruvian ocean margin from November to December 2008.

cdm_data_type = Other
VARIABLES:
ID (unitless)
Treatment (unitless)
Temp (Temperature, celsius)
Light (umol/square meter/second)
Light_cycle (D/L (h))
Salinity (Sea Water Practical Salinity, PSU)
pH_init (P H Init, pH)
pH_term (P H Term, pH)


[Alkalinity and dissolved inorganic carbon (DIC) from water samples collected at coral reefs in the equatorial central Pacific in 1973, 2012, 2015, and 2018] - Alkalinity and dissolved inorganic carbon (DIC) from sea water samples collected at coral reefs from equatorial central Pacific in 1973, 2012, 2015, and 2018 (The Biophysics of Coral Reef Resilience:  hydrodynamic and ecological drivers of coral survival under extreme heat)

This dataset includes total alkalinity (TA) and dissolved inorganic carbon (DIC), along with water temperature and salinity, to characterize the carbonate chemistry in the vicinity of 5 coral reef islands in the equatorial central Pacific. Discrete water samples were collected from June  7 – 18, 2012 and from September 5 – 26, 2015 at Kanton (2.8°S, 171.7°W), Enderbury (3.1°S, 171.1°W), Rawaki (3.7°S, 170.7°W) and Nikumaroro (4.7°S, 174.5°W), and from May 5 – 23, 2018 at Kanton, Rawaki, Nikumaroro, and Orona (4.5°S, 172.2°W) and at several open ocean sites. Some of the 2012 and 2015 water samples were also analyzed for nitrate, ammonium, phosphate and silicate concentrations.
Also included in this dataset are TA, pH, DIC, salinity, and water temperature from samples collected from November 27 to December 4, 1973 at Kanton Island by Smith, S. V., and P. L. Jokiel (1978).

cdm_data_type = Other
VARIABLES:
time (Datetime_utc, seconds since 1970-01-01T00:00:00Z)
Datetime_local (unitless)
latitude (Lat_n, degrees_north)
longitude (Lon_e, degrees_east)
Site_description (unitless)
depth (m)
Temperature (degrees Celsius)
Salinity (practical salinity unit, psu)
TA (micromoles/kilogram)
DIC (micromoles/kilogram)
Nitrate (micromoles/liter)
Ammonium (micromoles/liter)
Ammonium_flag (dimensionless)
Phosphate (micromoles/liter)
Silicate (micromoles/liter)
pH (unitless)


[All taxa colonization counts] - Counts of colonists collected from colonization plates at the East Pacific Rise (EPR) deep-sea vents (1998-2017) (Effects of Disturbance and Larval Supply on Communities at Hydrothermal Vents)

This dataset includes numbers of individuals of each species on each colonization surface. Gastropods only are presented, as they were identified definitively to species level. These data are published in Mullineaux et al (2012).

cdm_data_type = Other
VARIABLES:
Sieve_subsamples (unitless)
latitude (degrees_north)
longitude (degrees_east)
ID (unitless)
Site (unitless)
Zone (unitless)
cruise_id (unitless)
date_recovered (unitless)
Subsamples (unitless)
Temperature (degrees Celsius)
Bathymargarites_symplector (unitless)
Clypeosectus_delectus (unitless)
Ctenopelta_porifera (unitless)
Cyathermia_naticoides (unitless)
Eulepetopsis_vitrea (unitless)
Gorgoleptis_maybe_patulus (unitless)
Gorgoleptis_spiralis (unitless)
Gorgoleptis_emarginatus (unitless)
Lepetodrilus_cristatus (unitless)
Lepetodrilus_elevatus (unitless)
Lepetodrilus_ovalis (unitless)
Lepetodrilus_pustulosus (unitless)
Lepetodrilus_tevnianus (unitless)
Neomphalus_fretterae (unitless)
Pachydermia_laevis (unitless)
... (6 more variables)


[all_species_seen] - All the species seen during broad-scale cruises from the US-GLOBEC Georges Bank Program (U.S. GLOBEC Georges Bank)

All the species seen during broad-scale cruises from the US-GLOBEC Georges Bank Program, 1993-1999.

cdm_data_type = Other
VARIABLES:
taxon_code
taxon


[allADCP] - ADCP 600 and 150 KHz 5 minute and 1 hour averages; along track and shallow and deep sites; from R/V Seward Johnson SJ9506 and SJ9508 cruises?in the Gulf of Maine and Georges Bankareas during 1995 (GB project) (U.S. GLOBEC Georges Bank)

ADCP 600 and 150 KHz 5 minute and 1 hour averages; along track and shallow and deep sites; from R/V Seward Johnson SJ9506 and SJ9508 cruises?in the Gulf of Maine and Georges Bankareas during 1995 (GB project)

cdm_data_type = Other
VARIABLES:
cruiseid
beam (unknown)
frequency
site
bin
year
yrday_gmt (GMT)
latitude (degrees_north)
longitude (degrees_east)
press (decibars)
u (centimeters/second)
v (centimeters/second)


[Allometric scaling of calcification for Mytilus californianus] - Allometric scaling of calcification data for Mytilus californianus from 2021-2022 (OA decoupling project) (Invertebrate calcification and behavior in seawater of decoupled carbonate chemistry)

Calcification rates of mussels spanning a range of sizes. These data were used to determine a biomass scaling function for the main incubation dataset (Incubation data for Mytilus californianus calcification).

cdm_data_type = Other
VARIABLES:
species (unitless)
AphiaID (unitless)
LSID (unitless)
date_local (unitless)
start_time_local (unitless)
ISO_Start_DateTime_UTC (unitless)
duration (hours (h))
salinity (PSU)
temperature (degrees Celcius (c))
calcification (umol hr^-1 g^-0.71592)
tissue_mass (grams (g))
shell_mass (grams (g))
wet_mass (grams (g))
TA (umol kg-1)
ph (unitless)
do (umol kg-1)
ci (umol kg-1)
incubation_water_mass (kilograms (kg))
byssal_threads (threads hr-1)
delta_ta (umol kg-1)
delta_nh3 (umol kg-1)


[alongtrack New Horizon 2000] - Shipboard sensor data from along the ship track of R/V New Horizon cruises NH0005and NH0007 in the Northeast Pacific in 2000 as part of the U.S. GLOBEC program (NEP project) (U.S. GLOBEC Northeast Pacific)

Shipboard sensor data from along the ship track of R/V New Horizon cruises NH0005and NH0007 in the Northeast Pacific in 2000 as part of the U.S. GLOBEC program.

cdm_data_type = Other
VARIABLES:
cruiseid (dimensionless)
ship (dimensionless)
year (4-digit year)
yrday_utc (yearday)
yrday_local (yearday)
latitude (degrees_north)
longitude (degrees_east)
temp_ss (degrees Centigrade)
temp_ss_sec (degrees Centigrade)
cond (mmhos/cm)
sal_ss (psu)
fluor (volts)
temp_air (degrees Centigrade)
humidity (%)
press_bar (millibars)
radiation_s (W/m2)
radiation_l (W/m2)
wind_east_c (Eastward Wind, meters/second)
wind_north_c (Northward Wind, meters/second)
month_gmt (dimensionless)
day_gmt (dimensionless)
time_gmt (hours and minutes)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)


[alongtrack SJ9505] - Ship sensor data collected along the track during R/V Seward Johnson cruise SJ9505 in the Gulf of Maine and Georges Bank in 1995 as part of the U.S. GLOBEC program (GB project) (U.S. GLOBEC Georges Bank)

Ship sensor data collected along the track during R/V Seward Johnson cruise SJ9505 in the Gulf of Maine and Georges Bank in 1995 as part of the U.S. GLOBEC program (GB project)

cdm_data_type = Other
VARIABLES:
cruiseid
year
ship
yrday0_gmt (dec. yearday)
latitude (degrees_north)
longitude (degrees_east)
temp_air (degrees C)
temp_ss5 (degrees C)
sal (PSU)
flvolt (volts)
wind_vel_u (m/sec)
wind_vel_v (m/sec)
par_v
press_bar (unknown)
wind_spd (m/sec)
wind_dir (Wind From Direction, degrees)
month_gmt (unitless)
day_gmt (unitless)
time_gmt (unitless)
time (ISO Date Time, seconds since 1970-01-01T00:00:00Z)


[alongtrack] - Alongtrack data collected continuously by the ship's underway acquisition system from ARSV Laurence M. Gould cruise LMG1110 in the Southern Ocean in 2011 (Population ecology of Salpa thompsoni based on molecular indicators)

This alongtrack data set consists of a single file produced for each day of
the LMG1110 cruise, from 11/2/2011 to 12/1/2011.\u00a0 Data were obtained
primarily by applying calibrations to raw data and decimating to whole point
intervals.\u00a0 However, several fields are derived measurements from more
than a single raw input.\u00a0

IEDA has published a DOI for another version of this dataset: 'Underway
Hydrographic, Weather and Ship-state Data (JGOFS) from Laurence M. Gould
expedition LMG1110 (2011)'\u00a0[10.1594/IEDA/318148](\\http://www.marine-
geo.org/tools/search/Files.php?tab=datacitation&data_set_uid=18148\\)

cdm_data_type = Other
VARIABLES:
yrday (integer)
month_gmt (mm)
day_gmt (dd)
date (dd/mm/yy)
year (unitless)
time_gmt (decimal hours)
latitude (degrees_north)
longitude (degrees_east)
sog (Speed Over Ground, knots)
gps_hdop (-)
head (Degrees(azimuth))
cog (Course Over Ground, Degrees(azimuth))
PAR_mast (uE/m2/sec)
temp_ss (degrees C)
sal_ss (PSU)
depth_w (Depth, m)
wind_speed (meters/sec)
wind_dir (Wind From Direction, degrees(azimuth))
... (6 more variables)


[alongtrack] - Alongtrack data from ship's Data Acquisition System (DAS) from R/V Thomas G. Thompson cruise TN277 in the Eastern North Pacific Ocean in 2012 (POWOW project) (Seasonal and decadal changes in temperature drive Prochlorococcus ecotype distribution patterns)

Alongtrack data from ship's Data Acquisition System (DAS) from R/V Thomas G. Thompson cruise TN277 in the Eastern North Pacific Ocean in 2012. Data were collected along the cruise track from the ship's IMET sensors, thermosalinograph, Knudesn, and GPS.

cdm_data_type = Other
VARIABLES:
yrday (unitless)
month_gmt (mm (01 to 12))
day_gmt (dd (01 to 31))
year (unitless)
time_gmt (HH:MM:SS)
date_gmt (unitless)
latitude (degrees_north)
longitude (degrees_east)
temp (Temperature, degrees Celsius)
cond (Seimens/meter)
sal (PSU)
depth_w (Depth, meters)
chl_raw (volts)
light_trans_v (volts)
PAR (Photosynthetically Available Radiation, uE/m^2/sec)
radiation_s (watts/square meter)
temp_air (degrees Celsius)
press_bar (millibars)
wind_speed (knots)
wind_dir (degrees)
wind_speed_r (knots)
wind_dir_r (degrees)
wind_speed_avg (knots)
wind_dir_avg (degrees)
sound_vel (meters/second)
... (9 more variables)


[alongtrack] - Data collected daily along the ship track in JGOFS format from ARSV Laurence M. Gould and RVIB Nathaniel B. Palmer cruises to the Southern Ocean from 2001-2003 as part of the Southern Ocean GLOBEC project. (U.S. GLOBEC Southern Ocean)

Data collected daily along the ship track in JGOFS format from ARSV Laurence M. Gould and RVIB Nathaniel B. Palmer cruises to the Southern Ocean from 2001-2003 as part of the Southern Ocean GLOBEC project

cdm_data_type = Other
VARIABLES:
cruiseid
year (unitless)
date_gmt (unitless)
yrday_gmt
time_gmt (decimal hours)
latitude (degrees_north)
longitude (degrees_east)
sog (Speed Over Ground, knots)
gps_hdop (-)
head (Degrees(azimuth))
cmg (Degrees(azimuth))
PAR (Downwelling Photosynthetic Photon Radiance In Sea Water, uE/m2/sec)
temp_ss (degrees C)
cond_ss (siemens/meter)
sal_ss (dimensionless)
depth_w (Depth, meters)
wind_speed_c (Wind Speed, meters/sec)
wind_dir_c (Wind From Direction, degrees(azimuth))
temp_air (degrees C)
humidity (percent)
press_bar (milliBars)
flvolt (volts)
radiation_l (watts/meters2)
radiation_s (watts/meters2)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)


[alongtrack] - Positions along the ship's track of NOAA Ship Ronald H. Brown cruise RHB0603 in the Sargasso Sea and Southeast North Atlantic Ocean in 2006 as part of the Census of Marine Life (CMarZ_2004-2010 project) (Census of Marine Zooplankton-2004-2010)

Positions along the ship's track of NOAA Ship Ronald H. Brown cruise RHB0603 in the Sargasso Sea and Southeast North Atlantic Ocean in 2006 as part of the Census of Marine Life project.

cdm_data_type = Other
VARIABLES:
cruiseid (unitless)
year_start (unitless)
yrday_gmt (decimal day)
month_gmt
day_gmt
year
time_gmt (HHmm.m)
latitude (degrees_north)
longitude (degrees_east)
cog (Course Over Ground, true degrees)
sog (Speed Over Ground, knots (nautical miles per hour))
depth_w (Depth, meters)


[alongtrack] - Ship data collected along the track during AlbatrossIV broadscale cruises to the Gulf of Maine and Georges Bank in the U.S. GLOBEC Georges Bank project from 1995-1999 (GB project) (U.S. GLOBEC Georges Bank)

Ship data collected along the track during AlbatrossIV broadscale cruises to the Gulf of Maine and Georges Bank in the U.S. GLOBEC Georges Bank project from 1995-1999 (GB project)

cdm_data_type = Other
VARIABLES:
year
ship
cruiseid
yrday1_local (decimal yearday)
latitude (degrees_north)
longitude (degrees_east)
temp_air (degrees C)
temp_ss5 (degrees C)
sal (PPT)
flvolt (volts(uncalibrated))
wind_vel_u (knots)
wind_vel_v (knots)


[alongtrackel] - Ship data collected along the track during R/V Edwin Link cruises EL9904 and EL9905 in the Gulf of Maine and Georges Bank as part of the U.S. GLOBEC program in 1999 (U.S. GLOBEC Georges Bank)

Ship data collected along the track during R/V Edwin Link cruises EL9904 and EL9905 in the Gulf of Maine and Georges Bank as part of the U.S. GLOBEC program in 1999.

cdm_data_type = Other
VARIABLES:
year
ship
cruiseid
yrday0_gmt (decimal yearday)
latitude (degrees_north)
longitude (degrees_east)
wind_vel_u (meters/second)
wind_vel_v (meters/second)
temp_air (degrees C)
press_bar (millibars)
temp_ss (degrees C)
sal (PSU)
flvolt (volts)
speed_f_b (unknown)
humidity (per cent)
radiation_s (unknown)
radiation_l (unknown)


[alongtrackoc] - Ship data collected along the track during R/V Oceanus cruises OC296, OC301, and OC303 in the Gulf of Maine and Georges Bank as part of the U.S. GLOBEC program in 1997 (GB project) (U.S. GLOBEC Georges Bank)

Ship data collected along the track during R/V Oceanus cruises OC296, OC301, and OC303 in the Gulf of Maine and Georges Bank as part of the U.S. GLOBEC program in 1997.

cdm_data_type = Other
VARIABLES:
cruiseid
year
ship
day_gmt
hr
mn
yrday0_gmt (dec. yearday)
longitude (degrees_east)
latitude (degrees_north)
temp_ss5 (degrees C)
sal_ss3 (PSU)
cond_mM (Cond M M, mmho/cm)
temp_air (degrees C)
wind_vel_u (meters/second)
wind_vel_v (meters/second)
press_bar (millibars)
radiation_s (unknown)
wind_taux (Surface Downward Eastward Stress, pascals)
wind_tauy (Surface Downward Northward Stress, pascals)


[Alvin dive sites] - Locations and bottom depth of main Alvin dives at 9N hydrothermal vent field on the East Pacific Rise (EPR) during cruise RV/Atlantis cruise AT37-12, April-May 2017 (Collaborative Research: Environmental Drivers of Chemoautotrophic Carbon Production at Deep-Sea Hydrothermal Vents - Comparative Roles of Oxygen and Nitrate)

Locations and bottom depth of main Alvin dives at 9N hydrothermal vent field on the East Pacific Rise (EPR) during cruise RV/Atlantis cruise AT37-12, April-May 2017.

cdm_data_type = Other
VARIABLES:
Site (unitless)
longitude (degrees_east)
latitude (degrees_north)
Btm_depth (meters)


[Amazon plume POC biomarkers] - Composition and concentration of individual biomarkers in particulate organic carbon collected during two cruises to the Amazon River plume during R/V Knorr cruise KN197-08 in 2010 and R/V Melville cruise MV1110 in 2011 (Amazon iNfluence on the Atlantic: CarbOn export from Nitrogen fixation by DiAtom Symbioses)

These data include composition and concentration of individual biomarkers collected during two cruises to the Amazon River plume. Particulate organic carbon (POC) was collected in 2010 (high discharge) on a cruise aboard the R/V Knorr between 2010-05-23 and 2010-06-21, and in 2011 (low discharge) on a cruise aboard the R/V Melville between 2011-09-05 and 2011-10-06. Water was collected using CTD water sampling and particulate material was collected using 0.7 micrometer GF/F filters.

These data help to clarify the Amazon River plume's impact on the biological pump of the tropical Atlantic Ocean, consistent with a river plume fueling primary production, and with increased zooplankton and bacteria contributions to POC composition at depth and in the POC that is vertically exported. All POC samples were collected by Dr. Patricia Medeiros at the University of Georgia.

cdm_data_type = Other
VARIABLES:
Station (unitless)
depth (m)
Compound (unitless)
Concentration (micrograms per gram organic carbon (ug g-1 OC))
latitude (degrees_north)
longitude (degrees_east)
ISO_DateTime_Local (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)


[Amazon Plume Radium-2018] - Radium isotope measurements from CTD and underway water samples from the R/V Endeavor cruise EN614 from 2018-05-06 to 2018-05-29 (Collaborative Research: Impact of the Amazon River Plume on Nitrogen Availability and Planktonic Food Web Dynamics in the Western Tropical North Atlantic)

Radium isotope (223Ra, 224Ra, and 226Ra) measurements from CTD and underway water samples.

cdm_data_type = Other
VARIABLES:
U_or_C (unitless)
Station (unitless)
Cast (unitless)
Date (unitless)
time2 (Time, unitless)
time (Date Time, seconds since 1970-01-01T00:00:00Z)
latitude (degrees_north)
longitude (degrees_east)
depth (m)
Salinity (Sea Water Practical Salinity, unitless)
Sample_Volume (liters (L))
Ra223_Activity (dpm/100L)
Ra223_Unc (dpm/100L)
XS_Ra224_Activity (dpm/100L)
XS_Ra224_Unc (dpm/100L)
Ra226_Activity (dpm/100L)
Ra226_Unc (dpm/100L)
Comments (unitless)


[Amazon plume trap biomarkers] - Composition and concentration of individual biomarkers collected by particle interceptor traps in the Amazon River plume during R/V Knorr cruise KN197-08 in 2010 and R/V Melville cruise MV1110 in 2011 (Amazon iNfluence on the Atlantic: CarbOn export from Nitrogen fixation by DiAtom Symbioses)

These data include composition and concentration of individual biomarkers collected during two cruises to the Amazon River plume. Particulate organic carbon (POC) was collected in 2010 (high discharge) on a cruise aboard the R/V Knorr between 2010-05-23 and 2010-06-21, and in 2011 (low discharge) on a cruise aboard the R/V Melville between 2011-09-05 and 2011-10-06. POC sinking vertically from the surface ocean was collected using 12-polycarbonated tube free-floating surface-tethered particle interceptor traps, capturing ~1 to 3-days of accumulated sinking material. Then, the particulate material was collected using 0.7 micrometer GF/F filters.

These data help to clarify the Amazon River plume's impact on the biological pump of the tropical Atlantic Ocean, consistent with a river plume fueling primary production, and with increased zooplankton and bacteria contributions to POC composition at depth and in the POC that is vertically exported. Sediment trap collections were performed by Dr. William Berelson at the University of Southern California and POC samples were collected by Dr. Patricia Medeiros at the University of Georgia.

cdm_data_type = Other
VARIABLES:
Station (unitless)
depth (m)
Compound (unitless)
Concentration (micrograms per gram organic carbon (ug g-1 OC))
latitude (degrees_north)
longitude (degrees_east)
ISO_DateTime_Local (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)


[Amino acid d13C values of diatoms and bacteria] - Amino acid d13C values of diatoms, bacteria, and core M772-003-2 samples from the R/V Meteor (M77) in the Peruvian ocean margin from November to December 2008. (The Use of Nitrogen Isotopes of Amino Acids To Understand Marine Sedimentary 15N Records)

Amino acid d13C values of diatoms, bacteria, and core M772-003-2 samples from the R/V Meteor (M77) in the Peruvian ocean margin from November to December 2008.

cdm_data_type = Other
VARIABLES:
sample_description (unitless)
ID (unitless)
Ala (per mil)
Ala_st_dev (per mil)
Asx (per mil)
Asx_st_dev (per mil)
Glx (per mil)
Glx_st_dev (per mil)
Gly (per mil)
Gly_st_dev (per mil)
His (per mil)
His_st_dev (per mil)
Ile (per mil)
Ile_st_dev (per mil)
Leu (per mil)
Leu_st_dev (per mil)
Lys (per mil)
Lys_st_dev (per mil)
Met (per mil)
Met_st_dev (per mil)
Phe (per mil)
Phe_st_dev (per mil)
Thr (per mil)
Thr_st_dev (per mil)
Tyr (per mil)
Tyr_st_dev (per mil)
Val (per mil)
Val_st_dev (per mil)


[Amino acid d13C values of Thalassiosira weissflogii] - Amino acid d13C values of Thalassiosira weissflogii of ten different treatments; collections from R/V Meteor M77 in the Peruvian ocean margin from November to December 2008. (The Use of Nitrogen Isotopes of Amino Acids To Understand Marine Sedimentary 15N Records)

Amino acid d13C values of Thalassiosira weissflogii of ten different treatments; collections from R/V Meteor M77 in the Peruvian ocean margin from November to December 2008.

cdm_data_type = Other
VARIABLES:
Treatment (unitless)
Thr (per mil)
Thr_st_dev (per mil)
Asx (per mil)
Asx_st_dev (per mil)
Lys (per mil)
Lys_st_dev (per mil)
Ile (per mil)
Ile_st_dev (per mil)
Met (per mil)
Met_st_dev (per mil)
Ala (per mil)
Ala_st_dev (per mil)
Val (per mil)
Val_st_dev (per mil)
Leu (per mil)
Leu_st_dev (per mil)
Arg (per mil)
Arg_st_dev (per mil)
Glx (per mil)
Glx_st_dev (per mil)
Tyr (per mil)
Tyr_st_dev (per mil)
Phe (per mil)
Phe_st_dev (per mil)


[Amino Acid Enantiomeric Ratios] - Amino acid enantiomeric ratios (D/L) of high and low molecular weight (HMW, LMW) DOM collected from the North Pacific Subtropical Gyre and Central North Atlantic (The Microbial Nitrogen Pump: Coupling 14C and Compound-specific Amino Acids to Understand the Role of Microbial Transformations in the Refractory Ocean DON Pool)

Amino acid enantiomeric ratios (D/L) of high and low molecular weight (HMW,
LMW) DOM collected from the North Pacific Subtropical Gyre and Central North
Atlantic. These data were published in Broek et al. (2019) and Broek et al.
(2017).

cdm_data_type = Other
VARIABLES:
location (unitless)
year (unitless)
season (unitless)
sample_type (unitless)
depth (m)
amino_acid (unitless)
Mol_pcnt (unitless (percent))
Mol_pcnt_stdev (unitless (percent))
pcnt_D (unitless (percent))
pcnt_D_stdev (unitless (percent))
D_L_ratio (unitless)
D_L_ratio_stdev (unitless)


[Amino acid isotopes from mussels] - Amino acid isotopes from mussels along the California margin from 2009-2013 (Amino Acid Sediment 15N project) (The Use of Nitrogen Isotopes of Amino Acids To Understand Marine Sedimentary 15N Records)

Amino acid isotopes from mussels along the California margin from 2009-2013 (Amino Acid Sediment 15N project)

cdm_data_type = Other
VARIABLES:
Site (unitless)
Identifier (unitless)
Habitat_Type (unitless)
n (count)
Latitude_degMin (Latitude, Degree minutes)
Longitude_degMin (Longitude, Degree minutes)
latitude (degrees_north)
longitude (degrees_east)
element (unitless)
Bulk_d15N (Bulk D15 N, per mil)
Bulk_d15N_stdev (Bulk D15 N Stdev, per mil)
Bulk_d13C (Bulk D13 C, per mil)
Bulk_d13C_stdev (Bulk D13 C Stdev, per mil)
Average_Trophic (per mil)
Average_Source (per mil)
Trophic_Position (unitless)
Ala (per mil)
Ala_stdev (per mil)
Asx (per mil)
Asx_stdev (per mil)
Glx (per mil)
Glx_stdev (per mil)
Gly (per mil)
Gly_stdev (per mil)
Ile (per mil)
Ile_stdev (per mil)
... (16 more variables)


[ammonium removal by seaweeds] - Macroalgal contribution to NH4+ removal in tidepools from Cape Flattery, WA from 2010-2011 (Regenerated Nitrogen project) (The Role of Regenerated Nitrogen for Rocky Shore Productivity)

We evaluated the role of mussels by adding 15N-labeled NH4+ to an assemblage
of tidepools where they were either present at natural abundance levels, or
absent through manual removal. \u00a0The role of phototrophs was separately
examined by conducting these experiments both during the day and at night.
\u00a0The tidal height of pools varied between 1.2 to 1.5 m above Mean Lower
Low Water (MLLW). Tidepools were thus isolated from each other as well as the
nearshore environment during the low tide period when experiments were
conducted. Each experiment included 4 to 5 mussel removal (MR) tidepools
(since 2002) and 4 to 5 mussel control (MC) tidepools with natural mussel
densities. \u00a0In June 2010, we performed daytime NH4+ tracer experiments
and in August 2010 nighttime experiments using the same tidepools. The
following year (July 2011) these experiments were repeated with the addition
of bottle incubations (see below) to evaluate the effects of suspended
tidepool components and extended sampling for 6 days after the initial 15N
addition to test for long-term retention of NH4+. \u00a0During the 2011
experiments, unforeseen rain reduced the salinity in some pools by up to 51%,
and we have attempted to correct for the expected dilution of NH4+ in our
tidepool rate calculations.

Because isotope enrichment levels were relatively low, we used the
conventional delta notation instead of atom% to describe variations in 15N
enrichment (where delta-15NH4+ = {(15N:14N sample \u00f7 15N:14N standard)
-1}\u00d71000\u2030, where the standard is atmospheric N2. \u00a0Tracer
labeled ammonium chloride (15NH4Cl) was added to the pools to approximate a
1000\u2030 enrichment in 2010 (doubling the 15N-NH4+ concentration) and a
2000\u2030 enrichment in 2011(tripling the 15N-NH4+ concentration). 15N
natural abundance is only 0.365% and these tracer additions thus had a
negligible effect on the overall NH4+ concentrations increasing them by only
~0.4% and ~0.8%, respectively. Tidepool volumes were estimated
spectrophotometrically using varying concentrations of food dye (Pfister
1995). Together with estimates of NH4+ concentration (from 2009 data), we
estimated the tracer addition required to achieve the targeted 15N
enrichments. However, the actual initial enrichments varied substantially,
684.4 - 2406.4\u2030 in 2010 and 781.4 - 3880.2\u2030 in 2011, likely due to
error in tidepool volume estimation and natural variations in initial NH4+
concentrations. Fortunately, we sampled immediately following each tracer
addition allowing for the determination of the true initial 15N enrichment.
\u00a0

Prior to tracer addition at ebb tide, 100 mL of tidepool water was syringe-
filtered (Whatman GF/F) into separate HDPE bottles for natural abundance
15NH4+ and concentration determination. \u00a0To each pool, tracer 15NH4+ was
then added and distributed by stirring with a stick. Water samples were
immediately collected for measuring initial 15N enrichment and subsequently at
2, 4, and 6 hour intervals to determine isotope and concentration time
courses. All water samples were frozen until analysis. Tidepool oxygen, pH,
and temperature (Hach HQ4D) were also collected at ~ 2 h intervals throughout
the experiment.

In 2011 we also assessed the contribution of the suspended microbial community
to NH4+ cycling by enclosing tidepool water in a 250 mL transparent
polycarbonate incubation bottle. Following tracer addition, the bottle was
filled, then left to float in the tidepool for the duration of the experiment.
Samples from bottles were filtered as described both immediately after
containment and at the end of the experiment (~6 h later).

We assessed macroalgal contribution to NH4+ removal by transplanting two
tidepool-dwelling algae species. \u00a0Prionitis sternbergii were sampled 2
weeks prior to the experiment for baseline natural abundance 15N values and
transplanted into the pools with Z-Spar Epoxy (Pfister 2007). On the day of
the experiment, the red-alga, Corallina vancouveriensis from a single source
patch, was also sampled for 15N natural abundance, inserted into pieces of
Styrofoam, and floated in each pool.

At the end of each experiment (~6 h sampling point), we sampled tidepool
particulate organic material (POM) by filtering through combusted GF/F filters
until they clogged (~ 600 mL), comparing these samples with POM similarly
sampled from the immediate nearshore. \u00a0Floating Corallina spp. samples
were collected into clean Eppendorf tubes, and similar sized pieces of
Prionitis spp. were collected from each pool into clean foil packets.\u00a0
 We evaluated the extent of longer-term 15N tracer retention in 2011 by
sampling tidepool water, POM and transplanted Prionitis 1, 3, and 6 days
following tracer addition. We sampled at ebb tide and at again at slack water
just prior to high tide on the first day after tracer addition (that is, 24 h
later) and at slack water prior to high tide on Day 3 and 6.\u00a0

Relevant References:

2014\. Pather, S., C. A. Pfister, M. Altabet, D. M. Post. Ammonium cycling in
the rocky intertidal: remineralization, removal and retention. Limnology and
Oceanography
59:361-372.\u00a0[http://aslo.org/lo/toc/vol_59/issue_2/0361.htm](\\http://aslo.org/lo/toc/vol_59/issue_2/0361.html\\)

DOI for this dataset:\u00a0The role of regenerated nitrogen for rocky shore
productivity, Cape Flattery, Washington, 2010 &
2011.\u00a0Handle:\u00a0[http://hdl.handle.net/1912/6420](\\http://hdl.handle.net/1912/6420\\).\u00a0DOI:10.1575/1912/6420

Related Datasets:
[filter tracer content](\\https://www.bco-dmo.org/dataset/489283\\)
[natural abundance N and C filter content](\\http://www.bco-
dmo.org/dataset/489310\\)
[tidepool ammonium and mussels](\\https://www.bco-dmo.org/dataset/488860\\)
[tidepool incubation ammonium](\\https://www.bco-dmo.org/dataset/489085\\)

cdm_data_type = Other
VARIABLES:
site (unitless)
... (10 more variables)


[ammonium] - Ammonium (NH4) data from CTD rosette bottles from R/V Thomas G. Thompson and R/V Kilo Moana cruises TN277, KM1301, KM1312 in the Eastern North Pacific Ocean from 2012-2013 (POWOW project) (Seasonal and decadal changes in temperature drive Prochlorococcus ecotype distribution patterns)

Ammonium (NH4) data from CTD rosette bottles from R/V Thomas G. Thompson and R/V Kilo Moana cruises TN277, KM1301, KM1312 in the Eastern North Pacific Ocean from 2012-2013 (POWOW project)

cdm_data_type = Other
VARIABLES:
cruise_name (text)
cast (unitless)
latitude (degrees_north)
longitude (degrees_east)
depth_w (Depth, meters)
month_utc (mm (01 to 12))
day_utc (dd (01 to 31))
year (unitless)
time_utc (HHMM.mm)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
depth (m)
bot (unitless)
NH4 (Mole Concentration Of Ammonium In Sea Water, nanomolar (nM))


[Amplicon sequence variants (ASVs) and taxonomy of Pseudo-nitzschia spp.] - Amplicon sequence variants (ASVs) and taxonomy of Pseudo-nitzschia spp. from Narragansett Bay in Rhode Island, USA and the Northeast U.S. Shelf (NES-LTER transect) from 2018-2023 (Northeast U.S. Shelf Long Term Ecological Research site)

This dataset includes amplicon sequence variants (ASVs) representing species of the harmful algal bloom diatom genus Pseudo-nitzschia that were sampled from various sites in Narragansett Bay, Rhode Island, including the Narragansett Bay Long Term Plankton Time Series site, and various stations along the Northeast U.S. Shelf Long Term Ecological Research program transect. These data correspond to an analysis of Pseudo-nitzschia species composition and domoic acid toxin production during winters and summers from 2018-2023 in Narragansett Bay and the Northeast U.S. Shelf, which was prepared for submission to Harmful Algae (Roche, et al.). ASVs are also available under NCBI GenBank Accession Numbers PQ002243 - PQ002350 and MW447658 - MW447770 and raw sequencing data is available under NCBI Sequence Read Archive Accession numbers associated with BioSample accessions SAMN42123204 - 42123391 within BioProject PRJNA1129077.

cdm_data_type = Other
VARIABLES:
Species (unitless)
Assignment_method (unitless)
NCBI_GenBank_Accession_Number (unitless)
Genbank_ASV_number (unitless)
ASV_seq (unitless)
BioProject (unitless)


[AMT-30 iodine: depth profiles] - Iodine depth profile data collected from RRS Discovery cruise AMT-30 from February 23 - March 27th, 2023 (Collaborative Research: Experimental constraints on the rates and mechanisms of iodine redox transformations in seawater)

This dataset includes the depth profile data described in the following study abstract (see "Related Datasets" for more data from this study):

The oxidized iodine species, iodate, is abundant in well-oxygenated marine waters and can be tracked in sediments to reconstruct ancient oxygen availability. Despite known modern marine spatial variations in both iodate and reduced iodide, the rates, pathways, and locations of iodate formation remain poorly understood for temporal gradients across Earth history. To quantify rates and pathways of iodate formation across an ocean basin, we performed ship-board tracer experiments in euphotic waters with known gradients in iodine speciation on an Atlantic Meridional Transect (45°S and 37°N). We performed incubations at depths corresponding to 7% and 1% of ambient surface light levels, thus tracking the boundaries of the deep chlorophyl maximum (DCM), from 11 stations along the transect. All incubations were spiked with a 129I (t1/2 ~15.7 My) tracer and mimicked ambient conditions. We observed iodate production via multiple pathways. The most common observation was a lack of significant iodate production, with iodate production limited to 7 of the 22 locations and nearly exclusively observed at the DCM and outside the nitrogen and iron limited South Atlantic Gyre. Iodate formation from direct iodide oxidation is inferred in only two locations based on increases in iodate 129I/127I ratios. At the other locations, decreases in iodate 129I/127I ratios imply that rapid reactions with and overturning of alternative natural iodine pools, likely iodine intermediates, are an important factor for iodate production. Our work emphasizes that the rates and pathways of iodate production are spatially heterogenous in the Atlantic Ocean. Future work is needed to determine the drivers, temporal variations, and trends within global ocean basins.

cdm_data_type = Other
VARIABLES:
sample_ID (unitless)
station_number (unitless)
latitude (degrees_north)
longitude (degrees_east)
Date_Collected_AST (unitless)
Time_Collected_AST (unitless)
... (6 more variables)


[AMT-30 iodine: incubations] - Iodine incubation data collected from RRS Discovery cruise AMT-30 during February 23 - March 27th, 2023 (Collaborative Research: Experimental constraints on the rates and mechanisms of iodine redox transformations in seawater)

This dataset includes the incubation data described in the following study abstract (see "Related Datasets" for more data from this study):

The oxidized iodine species, iodate, is abundant in well-oxygenated marine waters and can be tracked in sediments to reconstruct ancient oxygen availability. Despite known modern marine spatial variations in both iodate and reduced iodide, the rates, pathways, and locations of iodate formation remain poorly understood for temporal gradients across Earth history. To quantify rates and pathways of iodate formation across an ocean basin, we performed ship-board tracer experiments in euphotic waters with known gradients in iodine speciation on an Atlantic Meridional Transect (45°S and 37°N). We performed incubations at depths corresponding to 7% and 1% of ambient surface light levels, thus tracking the boundaries of the deep chlorophyl maximum (DCM), from 11 stations along the transect. All incubations were spiked with a 129I (t1/2 ~15.7 My) tracer and mimicked ambient conditions. We observed iodate production via multiple pathways. The most common observation was a lack of significant iodate production, with iodate production limited to 7 of the 22 locations and nearly exclusively observed at the DCM and outside the nitrogen and iron limited South Atlantic Gyre. Iodate formation from direct iodide oxidation is inferred in only two locations based on increases in iodate 129I/127I ratios. At the other locations, decreases in iodate 129I/127I ratios imply that rapid reactions with and overturning of alternative natural iodine pools, likely iodine intermediates, are an important factor for iodate production. Our work emphasizes that the rates and pathways of iodate production are spatially heterogenous in the Atlantic Ocean. Future work is needed to determine the drivers, temporal variations, and trends within global ocean basins.

cdm_data_type = Other
VARIABLES:
sample_ID (unitless)
station_number (unitless)
latitude (degrees_north)
longitude (degrees_east)
light_percent (percent (%))
incubation_time (unitless)
... (13 more variables)


[Anchovy data of Chesapeake Bay] - Concentration of anchovies from hypoxic waters of the Chesapeake Bay collected by R/V Hugh R. Sharp (HRS100524JP, HRS100819JP, HRS100920JP, HRS110525JP, HRS110719JP, HRS110922JP) from 2010-2011 (DeZoZoo project) (Hypoxia in Marine Ecosystems: Implications for Neritic Copepods)

These data represent a merging of electronic data collected from the MOCNESS
sensor systems and the count data from the samples collected with the net
tows. Some nets were used for zooplankton samples (see [http://www.bco-
dmo.org/dataset/564755](\\https://www.bco-dmo.org/dataset/564755\\)) , while
others were collected specifically to estimate bay anchovy concentrations.
These are contained on different sheets, and the count data was merged
individually.\u00a0 This dataset represents the bay anchovy counts and
abundance.

cdm_data_type = Other
VARIABLES:
cruiseid (text)
cruise_informal (text)
year (time)
month_local (time)
tow (text)
net (text)
sample_id (text)
time_local (HH:MM)
latitude (degrees_north)
longitude (degrees_east)
vol_filt (cubic meters)
vol_filt2 (cubic meters)
site (text)
depth_mid (Depth, m)
depth_relative (Depth, text)
fish_num (number)
fish_abund (the number of individuals per cubic meter)
stage (text)
day_local (time)
yrday_local (time)
... (12 more variables)


[Anderson & Rynearson 2020: Skeletonema CHN] - Elemental carbon and nitrogen data for Skeletonema species as analyzed in Anderson and Rynearson, 2020 (Dimensions: Collaborative Research: Genetic, functional and phylogenetic diversity determines marine phytoplankton community responses to changing temperature and nutrients)

Elemental concentrations for Skeletonema species (n=2), as analyzed in Anderson and Rynearson, 2020. This dataset includes carbon, nitrogen, and volume measurements for S. marinoi (n=3) and S. pseudocostatum (n=4) evaluated at the thermal minimum, maximum, and optimum for each strain. Strains were isolated from Narragansett Bay, Rhode Island.

cdm_data_type = Other
VARIABLES:
Species (unitless)
Strain (unitless)
GenBank (Gen Bank, unitless)
Collection_date (unitless)
latitude (Isolation Lat, degrees_north)
longitude (Isolation Lon, degrees_east)
Isolation_Temperature (degrees C)
Temperature (degrees C)
meanC (Mean C, picomol carbon per cell)
seC (Se C, picomol carbon per cell)
meanN (Mean N, picomol nitrogen per cell)
seN (Se N, picomol nitrogen per cell)
meanCN (Mean CN, unitless)
seCN (Se CN, unitless)
meanV (Mean V, cubic micrometers (um3))
seV (Se V, cubic micrometers (um3))
mean_cd (femtomol/cubic micrometers (fmol um-3))
se_cd (femtomol/cubic micrometers (fmol um-3))
mean_nd (femtomol/cubic micrometers (fmol um-3))
se_nd (femtomol/cubic micrometers (fmol um-3))


[Anderson & Rynearson 2020: Skeletonema thermal growth] - Thermal growth for Skeletonema species as analyzed in Anderson and Rynearson, 2020 (Dimensions: Collaborative Research: Genetic, functional and phylogenetic diversity determines marine phytoplankton community responses to changing temperature and nutrients)

Thermal growth rates for 24 strains representing 5 species from the diatom genus Skeletonema, as analyzed in Anderson and Rynearson, 2020. Strains were grown at temperatures ranging from -2 to 36C to assess how inter- and intraspecific thermal trait variability could explain diatom community dynamics.

cdm_data_type = Other
VARIABLES:
Species (unitless)
Strain (unitless)
Temperature (degrees C)
Isolation_Temperature (degrees C)
Growth (per day)
GenBank (Gen Bank, unitless)
Collection_date (unitless)
latitude (Isolation Lat, degrees_north)
longitude (Isolation Lon, degrees_east)


[Antarctic krill schooling: Coordinates for speed and nearest neighbor distances] - 3D coordinates to calculate speed and nearest neighbor distances in each trial of Antarctic krill in lab experiments at Palmer Station, Antarctica in November 2022. (Collaborative Research: Individual Based Approaches to Understanding Krill Distributions and Aggregations)

Laboratory experiments were conducted on schools of Antarctic krill in the novel annular flume at Palmer Station, Antarctica, in November 2022.  Using overhead camera along with stereophotogrammetry system the swimming trajectories of krill were recorded while altering flow and light levels in the tank.

The purpose of the study is to understand how Antarctic krill schooling structure changes under environmental cues such as flow and light, with the hope that distribution of these important species can be predicted through knowledge of the environment in the wild. Southern Ocean ecologists, biologists, and oceanographers in general could benefit from this work. Kuvvat Garayev and David Murphy from University of South Florida were responsible for the collection and interpretation of data.

cdm_data_type = Other
VARIABLES:
trial (exp_id)
burst (unitless)
consecutive_time_point (unitless)
krill_count (unitless)
x (pixel units)
y (pixel units)
z (pixel units)


[Antarctic krill schooling: Rotation order parameters] - Rotation order parameters in each trial of Antarctic krill in lab experiments at Palmer Station, Antarctica in November 2022. (Collaborative Research: Individual Based Approaches to Understanding Krill Distributions and Aggregations)

Laboratory experiments were conducted on schools of Antarctic krill in the novel annular flume at Palmer Station, Antarctica, in November 2022.  Using overhead camera along with stereophotogrammetry system the swimming trajectories of krill were recorded while altering flow and light levels in the tank.

The purpose of the study is to understand how Antarctic krill schooling structure changes under environmental cues such as flow and light, with the hope that distribution of these important species can be predicted through knowledge of the environment in the wild. Southern Ocean ecologists, biologists, and oceanographers in general could benefit from this work. Kuvvat Garayev and David Murphy from University of South Florida were responsible for the collection and interpretation of data.

cdm_data_type = Other
VARIABLES:
date (units)
file_name (unitless)
trial (unitless)
flow (unitless)
light (unitless)
krill_density (krill/L)
krill_total (unitless)
krill_tracked (unitless)
Or (unitless)
image (unitless)
mean (unitless)
std (unitless)
image_file (unitless)
coordinate_file (unitless)


[Antillogorgia americana Branch Variation] - Number and size of eggs found in five different branches from a single Antillogorgia americana from a study site in the San Blas Islands, Panama from July 1990 to August 1991 (Collaborative Research: Pattern and process in the abundance and recruitment of Caribbean octocorals)

The reproductive biology of the branching octocoral Antillogorgia americana was studied at a site on the Caribbean coast of Panama in 1990-1991. Eleven colonies were tagged and monthly samples were collected over a 14-month period. Colonies were gonochoric and the samples included 6 females and 4 females. Ten polyps were examined from each sample and the number and size of gonads were determined.  An additional 4 branches were sampled from a female colony in January 1991 and fecundity was determined relative to the branch, position of branchlet on the branch, and position of the polyp on the branchlet. The lack of synchrony among colonies on the scale of months may reflect less need for all colonies to spawn in a single event among abundant species that release large numbers of gametes. Such a strategy also spreads the risk of reproductive failure due to environmental conditions during any single month. Multiple spawning episodes can also drive reproductive isolation of populations and may reflect the presence of cryptic species within the taxon. Studies of reproductive timing can be an important adjunct in identifying variation in life history strategies as well as assessing the validity of species boundaries.

This dataset describes branch variation, including the number and size of eggs found in five different branches from a single Antillogorgia americana. Ten polyps were sampled from four branchlets and two positions on the branchlets of each branch.

cdm_data_type = Other
VARIABLES:
Branch (unitless)
Side (unitless)
tip_base (unitless)
Branchlet (unitless)
polyp (unitless)
count (unitless)
AvgDiam (millimeters (mm))
TotVol (cubic millimeters (mm^3))
Diam1 (millimeters (mm))
Diam2 (millimeters (mm))
Diam3 (millimeters (mm))
... (7 more variables)


[Antillogorgia americana Monthly Surveys] - Number and size of gonads found in monthly samples of Antillogorgia americana colonies at a study site in the San Blas Islands, Panama from July 1990 to August 1991 (Collaborative Research: Pattern and process in the abundance and recruitment of Caribbean octocorals)

The reproductive biology of the branching octocoral Antillogorgia americana was studied at a site on the Caribbean coast of Panama in 1990-1991. Eleven colonies were tagged and monthly samples were collected over a 14-month period. Colonies were gonochoric and the samples included 6 females and 4 females. Ten polyps were examined from each sample and the number and size of gonads were determined.  An additional 4 branches were sampled from a female colony in January 1991 and fecundity was determined relative to the branch, position of branchlet on the branch, and position of the polyp on the branchlet. The lack of synchrony among colonies on the scale of months may reflect less need for all colonies to spawn in a single event among abundant species that release large numbers of gametes. Such a strategy also spreads the risk of reproductive failure due to environmental conditions during any single month. Multiple spawning episodes can also drive reproductive isolation of populations and may reflect the presence of cryptic species within the taxon. Studies of reproductive timing can be an important adjunct in identifying variation in life history strategies as well as assessing the validity of species boundaries.

This dataset includes the number and size of gonads found in monthly samples of each of 11 A. americana colonies.

cdm_data_type = Other
VARIABLES:
Sex (unitless)
Colony (unitless)
Month (unitless)
Year (unitless)
Polyp (unitless)
Number (unitless)
Avg_diam (micrometers (um))
Volume (cubic millimeters (mm^3))
N_GE_400 (unitless)
Diam1 (micrometers (um))
Diam2 (micrometers (um))
Diam3 (micrometers (um))
... (4 more variables)


[Apparent Quantum Yields] - Apparent Quantum Yields for the Photochemical Formation of Carbonyl Compounds in Seawater from the R/V Endeavor EN589 in the Northwest Atlantic Ocean from September to October 2016. (Collaborative Research: Coupled Ocean-Atmosphere Recycling of Refractory Dissolved Organic Carbon in Seawater)

Apparent Quantum Yields for the Photochemical Formation of Carbonyl Compounds in Seawater from the R/V Endeavor EN589 in the Northwest Atlantic Ocean from September to October 2016.

cdm_data_type = Other
VARIABLES:
Sample_Date (unitless)
Station (unitless)
latitude (degrees_north)
longitude (degrees_east)
Cast_ID_YYJSG (unitless)
depth (m)
Temperature (Kelvin (K))
Wavelength (nanometer (nm))
Acetaldehyde (mole carbonyl photoproduced in seawater/mol photons absorbed by dissolved organic matter  (mole/(mole quanta)))
Glyoxal (mole carbonyl photoproduced in seawater/mol photons absorbed by dissolved organic matter  (mole/(mole quanta)))
Methylglyoxal (mole carbonyl photoproduced in seawater/mol photons absorbed by dissolved organic matter  (mole/(mole quanta)))
AQY_SetUp (AQY Set Up, unitless)


[April 2018 Slover cruise data] - Adenosine triphosphate and microbial biomass measurements from the Chesapeake Bay, sampled aboard RV Fay Slover on April 11, 2018 (Adenosine triphosphate as a master variable for biomass in the oceanographic context)

This dataset contains values from instruments and Niskin bottle samples from a research expedition on the RV Slover on April 11, 2018. Six stations were sampled with five bottle samples each from the coastal ocean to tributaries of the Chesapeake Bay. The variables are latitude, longitude, station number, depth, sigma-t, beam attenuation, relative chlorophyll fluorescence, salinity, temperature, total ATP (dissolved and particulate), carbon of prokaryotic microbes (microscope estimates), and carbon of eukaryotic microbes (microscope estimates).

cdm_data_type = Other
VARIABLES:
Date (unitless)
latitude (degrees_north)
longitude (degrees_east)
station (unitless)
depth (m)
ATPtot (unitless)
Prokaryote_carbon_fg_ml (femtogram/ml)
Eukayote_carbon_fg_ml (femtogram/ml)
temperature_Celsius (degrees Celsius (°C))
chlorophyll_rfu (relative fluorescence units)
beamc (m-1)
salinity_psu (psu)
sigma_t (unitless)


[AQMET Air quality and meteorological measurements] - AQMET Air quality and meteorological measurements measured measured during DANCE cruise HRS1414 aboard the R/V Hugh R. Sharp from July to August 2014. (Collaborative Research: Impacts of atmospheric nitrogen deposition on the biogeochemistry of oligotrophic coastal waters)

AQMET Air quality and meteorological measurements measured measured during DANCE cruise HRS1414 aboard the R/V Hugh R. Sharp from July to August 2014.

cdm_data_type = Other
VARIABLES:
Index_number (number)
Seconds_utc (seconds)
Fract_day_of_year_utc (days)
Year_utc (year)
Month_utc (month)
Day_of_month_utc (day)
Hour_of_day_utc (hour)
Minute_of_hour_utc (minute)
Downwelling_shortwave_rad (Watts per square meter)
Downwelling_longwave_rad (Watts per square meter)
Accumulated_precip_mm (millimeters)
Precipitation_flag (number)
JNO2 (per second)
NO2 (Mole Concentration Of Nitrite In Sea Water, ppbv)
O3 (ppbv)
CO (ppbv)
NO (ppbv)
NOx (ppbv)
Plume_flag (number)
latitude (degrees_north)
longitude (degrees_east)


[Aquaculture treatments] - Determining the effects of prey combination on larval Elacatinus colini standard length and survival. (Collaborative Research: The Role of Larval Orientation Behavior in Determining Population Connectivity)

Determining the effects of prey combination on larval Elacatinus colini standard length and survival.

cdm_data_type = Other
VARIABLES:
date (unitless)
sp (unitless)
batch_id (unitless)
treat (unitless)
density (prey per mililiter)
combination (unitless)
bin_id (unitless)
larva_id (unitless)
surv (unitless)
TL1 (milimeter)
TL2 (milimeter)
TL3 (milimeter)
tl_avg (milimeter)
SL1 (milimeter)
SL2 (milimeter)
SL3 (milimeter)
sl_avg (milimeter)
BD1 (milimeter)
BD2 (milimeter)
BD3 (milimeter)
bd_avg (milimeter)


[Aquatic Eddy Covariance Processed Measurements] - Processed aquatic eddy covariance measurements collected under hypoxic conditions from seven eddy covariance lander deployments made during summer cruises on the Oregon and Washington mid-shelf in 2018 and 2022 (Environmental consequences of expanded recruitment of an ecosystem engineer on a hypoxia-influenced continental shelf)

This dataset includes time-series measurements from seven eddy covariance lander deployments made on the Oregon or Washington continental shelf at mean water depths ranging from 68-84 m in 2018 and 2022. Average dissolved oxygen concentrations during these deployments ranged from 17-75 micro moles per liter allowing assessments of benthic oxygen fluxes under hypoxic or near-hypoxic conditions. Reported are the sensor measurements of velocities (xyz coordinates), dissolved oxygen, and pressure processed and reduced by averaging to 8 Hz by Dr. Clare E. Reimers from Oregon State University.

cdm_data_type = Other
VARIABLES:
Elapsed_time (seconds)
Velocity_x (cm/s)
Velocity_y (cm/s)
Velocity_z (cm/s)
Dissolved_oxygen (micromoles/L)
Pressure (db)
Matlab_Datenumber_Local (unitless)
Burst (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
Cruise (unitless)
St_ID (unitless)
Deployment (unitless)
Oxy_sensor (unitless)
latitude (degrees_north)
longitude (degrees_east)
Heading (degrees)
Pitch (degrees)
Roll (degrees)
Height (cm)


[AR16 Water column nutrients] - Water column nutrient data from RV/Neil Armstrong cruise AR16, May 2017 (Redox Cycling of Phosphorus in the Western North Atlantic Ocean)

This dataset includes water column nutrient data from RV/Neil Armstrong cruise AR16, May 2017: silicate, nitrate, nitrite, and ammonium concentrations.

cdm_data_type = Other
VARIABLES:
Station (unitless)
CTD_Cast (unitless)
latitude (degrees_north)
longitude (degrees_east)
time (seconds since 1970-01-01T00:00:00Z)
depth (m)
PO4 (Mass Concentration Of Phosphate In Sea Water, umol per liter)
Silicate (Mass Concentration Of Silicate In Sea Water, umol per liter)
NO3 (umol per liter)
NO2 (umol per liter)
NH4 (umol per liter)


[Arctic Bacterial Genomes] - Under the ice bacterial cultures and genome sequences from the R/V Kronprins Haakon in the Arctic Ocean from May 18 to 21, 2023 (Collaborative Research: Drivers and effects of latent phage activation in marine SAR11)

Bacteria were cultured and sequenced from the Arctic Ocean under 2-meter-thick sea ice to identify patterns of gene, loss, and rearrangement. Cultures were obtained by high-throughput dilution to extinction cultivation using cryopreserved samples. Bacteria selected for genome sequencing were grown in 1 liter of Puget Sound seawater media and sequenced using the Oxford Nanopore Technologies (ONT) R10.4.1 Flongle flow cells with the SQK-RAD114 rapid library prep kit (Oxford Nanopore Technologies, Oxford, United Kingdom). Time-series data indicate that this collection represents up to 60% of the marine bacterial community in the Arctic. Their complete genomes provide insights into the evolutionary processes that underlie diversity and adaptation to the Arctic Ocean.

cdm_data_type = Other
VARIABLES:
isolate (unitless)
Date (unitless)
latitude (degrees_north)
longitude (degrees_east)
id (unitless)
genome_length (number of nucleotides)
sequencing_covearge (unitless)
pcnt_gc (unitless)
coding_ratio (unitless)
rRNA (unitless)
genome_accession (unitless)
bioproject (unitless)
biosample (unitless)
sequence_read_archive (unitless)


[Arctic Nitrogen Fixation Rates] - Nitrogen fixation rates from samples collected in the Chukchi Sea, Arctic Ocean near Barrow, Alaska in August of 2011 (ArcticNITRO project) (Does competition for nitrogen between autotrophs and heterotrophs control carbon fluxes in the western coastal Arctic?)

This dataset contains nitrogen fixation rates, as well as ammonium, nitrate,
and phosphate concentrations collected in the coastal Chukchi Sea west of
Barrow, Alaska between 15 Aug 2011 and 20 Aug 2011. \u00a0Salinity,
temperature, and collection depth are also provided.

cdm_data_type = Other
VARIABLES:
Sample_ID (unitless)
Date_local (unitless)
Time_local (unitless)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
latitude (degrees_north)
longitude (degrees_east)
Depth (meters (m))
depth (Collection Depth, m)
Size_fraction (micrometer (um))
Temperature (degrees Celsius)
Salinity (Sea Water Practical Salinity, Practical Salinity Units (PSU))
N_Fixation_Rate_Absolute (micromoles per liter per hour (umol/L/h))
Nitrogen_Fixation_Rate_SE (micromoles per liter per hour (umol/L/h))
Ammonium (Mole Concentration Of Ammonium In Sea Water, micromolar (umol/L))
Ammonium_SD (micromolar (umol/L))
Nitrate (Mole Concentration Of Nitrate In Sea Water, micromolar (umol/L))
Nitrate_SD (micromolar (umol/L))
Phosphate (Mass Concentration Of Phosphate In Sea Water, micromolar (umol/L))
Phosphate_SD (micromolar (umol/L))


[Argyle Creek temperatures (HOBO) from inside mussel bed] - Argyle Creek temperatures (HOBO) from inside mussel bed (Collaborative Research: Microscale interactions of foundation species with their fluid environment: biological feedbacks alter ecological interactions of mussels)

This dataset includes water temperature data measured at 30 minute intervals in a mytilid mussel bed (Mytilus spp.) by a HOBO Pendant MX logger (MX2201, Onset Computer Corporation, Bourne, MA). The site was located at Argyle Creek on San Juan Island, WA, USA from 2019 to 2024.

cdm_data_type = Other
VARIABLES:
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
ISO_Datetime_PST (unitless)
Location (unitless)
latitude (degrees_north)
longitude (degrees_east)
Water_Temp (degrees Celcius (degC))


[ARK27-3: Bulk FLA hydrolysis rates] - Microbial enzyme activities: polysaccharide hydrolase activities in bulk seawater samples from the RV\Polarstern cruise ARKXXVII/3 in the Central Arctic Ocean and Laptev Sea, Aug-Sept. 2012 (Latitudinal and depth-related contrasts in enzymatic capabilities of pelagic microbial communities: Predictable patterns in the ocean?)

This dataset includes polysaccharide hydrolysis rates measured in bulk (not filter-fractionated) seawater. Links to archived CTD data are also provided.

cdm_data_type = Other
VARIABLES:
station_no (unitless)
depth_no (Depth, unitless)
depth (m)
cast_no (unitless)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
latitude (degrees_north)
longitude (degrees_east)
substrate (unitless)
timepoint (unitless)
time_elapsed_hr (hours)
rep1_rate (nanomoles/liter/hour (nmol L-1 h-1))
rep2_rate (nanomoles/liter/hour (nmol L-1 h-1))
rep3_rate (nanomoles/liter/hour (nmol L-1 h-1))
average (nanomoles/liter/hour (nmol L-1 h-1))
std_dev (nanomoles/liter/hour (nmol L-1 h-1))
comments (unitless)


[ARK27-3: Bulk MCA hydrolysis rates] - Microbial enzyme activities: peptidase activities in bulk seawater samples from the RV\Polarstern cruise ARKXXVII/3 in the Central Arctic Ocean and Laptev Sea, Aug-Sept. 2012 (Latitudinal and depth-related contrasts in enzymatic capabilities of pelagic microbial communities: Predictable patterns in the ocean?)

This dataset includes peptidase activities measured in bulk (not filter-fractionated) seawater. Links to archived CTD data are also provided. Five substrates linked to a 7-amido-4-methyl coumarin (MCA) fluorophore, one amino acid \u2013 leucine \u2013 and four oligopeptides \u2013 the chymotrypsin substrates alanine-alanine-phenylalanine (AAF) and alanine-alanine-proline-phenylalanine (AAPF), and the trypsin substrates glutamine-alanine-arginine (QAR) and glutamic acid-gylcine-arginine (EGR) \u2013 were used to measure exo- and endo-acting peptidase activities, respectively.

cdm_data_type = Other
VARIABLES:
station_no (unitless)
depth_no (Depth, unitless)
depth_m (Depth, meters)
cast_no (unitless)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
latitude (degrees_north)
longitude (degrees_east)
substrate (unitless)
timepoint (unitless)
time_elapsed_hr (hours)
rep1_rate (nanomoles/liter/hour (nmol L-1 h-1))
rep2_rate (nanomoles/liter/hour (nmol L-1 h-1))
rep3_rate (nanomoles/liter/hour (nmol L-1 h-1))
average (nanomoles/liter/hour (nmol L-1 h-1))
std_dev (nanomoles/liter/hour (nmol L-1 h-1))
comments (unitless)


[ARK27-3: GF FLA hydrolysis rates] - Microbial enzyme activities: polysaccharide hydrolase activities of gravity filtered seawater samples from the RV\Polarstern cruise ARKXXVII/3 in the Central Arctic Ocean and Laptev Sea, Aug-Sept. 2012 (Latitudinal and depth-related contrasts in enzymatic capabilities of pelagic microbial communities: Predictable patterns in the ocean?)

This dataset includes polysaccharide hydrolysis rates measured in samples from gravity filtered seawater. Links to archived CTD data are also provided.

cdm_data_type = Other
VARIABLES:
station_no (unitless)
depth_no (Depth, unitless)
depth (m)
cast_no (unitless)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
latitude (degrees_north)
longitude (degrees_east)
substrate (unitless)
timepoint (unitless)
time_elapsed_hr (hours)
rep1_rate (nanomoles/liter/hour (nmol L-1 h-1))
rep2_rate (nanomoles/liter/hour (nmol L-1 h-1))
average (nanomoles/liter/hour (nmol L-1 h-1))
std_dev (nanomoles/liter/hour (nmol L-1 h-1))
filter_um (microns)
comments (unitless)


[ARK27-3: GF MCA hydrolysis rates] - Microbial enzyme activities: peptidase activities of gravity-filtered seawater samples from the RV\Polarstern cruise ARKXXVII/3 in the Central Arctic Ocean and Laptev Sea, Aug-Sept. 2012 (Latitudinal and depth-related contrasts in enzymatic capabilities of pelagic microbial communities: Predictable patterns in the ocean?)

This dataset includes microbial peptidase hydrolysis rates measured on particles collected from gravity filtered seawater. Links to archived CTD data are also provided. Five substrates linked to a 7-amido-4-methyl coumarin (MCA) fluorophore, one amino acid \u2013 leucine \u2013 and four oligopeptides \u2013 the chymotrypsin substrates alanine-alanine-phenylalanine (AAF) and alanine-alanine-proline-phenylalanine (AAPF), and the trypsin substrates glutamine-alanine-arginine (QAR) and glutamic acid-gylcine-arginine (EGR) \u2013 were used to measure exo- and endo-acting peptidase activities, respectively.

cdm_data_type = Other
VARIABLES:
station_no (unitless)
depth_no (Depth, unitless)
depth (m)
cast_no (unitless)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
latitude (degrees_north)
longitude (degrees_east)
substrate (unitless)
timepoint (unitless)
time_elapsed_hr (hours)
rep1_rate (nanomoles/liter/hour (nmol L-1 h-1))
rep2_rate (nanomoles/liter/hour (nmol L-1 h-1))
average (nanomoles/liter/hour (nmol L-1 h-1))
std_dev (nanomoles/liter/hour (nmol L-1 h-1))
filter_um (microns)
comments (unitless)


[ARK27-3: Sediment MCA hydrolysis rates] - Microbial enzyme activities: peptidase activities of sediment samples from the RV\Polarstern cruise ARKXXVII/3 in the Central Arctic Ocean and Laptev Sea, Aug-Sept. 2012 (Latitudinal and depth-related contrasts in enzymatic capabilities of pelagic microbial communities: Predictable patterns in the ocean?)

This dataset includes peptidase hydrolysis rates from sediments to measure microbial enzyme activities. Links to archived CTD data are also provided. Five substrates linked to a 7-amido-4-methyl coumarin (MCA) fluorophore, one amino acid \u2013 leucine \u2013 and four oligopeptides \u2013 the chymotrypsin substrates alanine-alanine-phenylalanine (AAF) and alanine-alanine-proline-phenylalanine (AAPF), and the trypsin substrates glutamine-alanine-arginine (QAR) and glutamic acid-gylcine-arginine (EGR) \u2013 were used to measure exo- and endo-acting peptidase activities, respectively.

cdm_data_type = Other
VARIABLES:
station_no (unitless)
depth_no (Depth, unitless)
depth (m)
cast_no (unitless)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
latitude (degrees_north)
longitude (degrees_east)
substrate (unitless)
timepoint (unitless)
time_elapsed_hr (hours)
rep1_rate (nanomoles/liter/hour (nmol L-1 h-1))
rep2_rate (nanomoles/liter/hour (nmol L-1 h-1))
rep3_rate (nanomoles/liter/hour (nmol L-1 h-1))
average (nanomoles/liter/hour (nmol L-1 h-1))
std_dev (nanomoles/liter/hour (nmol L-1 h-1))
comments (unitless)


[AT26-14 Alvin sample logs] - Sample logs from R/V Atlantis (AT26-14) Alvin dives in the Gulf of Mexico during 2014 (Lophelia OA project) (Physiological and genetic responses of the deep-water coral, Lophelia pertusa, to ongoing ocean acidification in the Gulf of Mexico)

Sample logs from R/V Atlantis (AT26-14) Alvin dives in the Gulf of Mexico during 2014 (Lophelia OA project)

cdm_data_type = Other
VARIABLES:
dive (unitless)
sampleLog_date (Sample Log Date, unitless)
latitude (degrees_north)
longitude (degrees_east)
utmx (meters)
utmy (meters)
depth (m)
sampleLog_time (Sample Log Time, unitless)
time2 (Time, unitless)
sampleLog_seconds (Sample Log Seconds, seconds)
time_sec (seconds)
sampleLog_sample (Sample Log Sample, unitless)
sampleLog_location (Sample Log Location, unitless)
sampleLog_pump (Sample Log Pump, unitless)
sampleLog_species (Sample Log Species, unitless)
sampleLog_notes (Sample Log Notes, unitless)


[AT37-06 Porewater SO4] - Porewater sulfate from samples collected by pushcore from Guaymas Basin hydrothermal sediments on R/V Atlantis cruise AT37-06 in the Guaymas Basin in December 2016 (Collaborative Research: Microbial Carbon cycling and its interactions with Sulfur and Nitrogen transformations in Guaymas Basin hydrothermal sediments)

Porewater sulfate from samples collected by pushcore from Guaymas Basin hydrothermal sediments on cruise AT37-06 in December 2016.

cdm_data_type = Other
VARIABLES:
Sample_ID (unitless)
Sulfate_Concentration (millimoles per liter (mMol/L))


[AT37-12: CTD locations and bottle depths] - CTD log at the oxygen deficient zone of the Eastern Tropical North Pacific (ETNP) for RV/Atlantis cruise AT37-12, April-May 2017 (Collaborative Research: Environmental Drivers of Chemoautotrophic Carbon Production at Deep-Sea Hydrothermal Vents - Comparative Roles of Oxygen and Nitrate)

A total of 10 CTD casts were performed on AT37-12 focusing on sampling the waters of the oxygen deficient zone of the Eastern Tropical North Pacific (ETNP). Cast 7 could not be completed due to problems with the wire. This dataset reports the station, date, location, water depth and sampling depth of individual Niskin bottles.

cdm_data_type = Other
VARIABLES:
Station (unitless)
Date (unitless)
latitude (degrees_north)
longitude (degrees_east)
Btm_depth (meters)
Niskin (unitless)
depth (Btl Depth, m)


[AT39-01 CathodicEET Chronoamperometry] - Chronoamperometry data from cathodic poised potential experiments with subsurface crustal samples from CORK borehole observatories at North Pond on the Mid-Atlantic Ridge during R/V Atlantis cruise AT39-01 (Collaborative Research: Completing North Pond Borehole Experiments to Elucidate the Hydrology of Young, Slow-Spread Crust)

Chronoamperometry data from cathodic poised potential experiments with subsurface crustal samples from CORK borehole observatories at North Pond on the Mid-Atlantic Ridge during R/V Atlantis cruise AT39-01.

cdm_data_type = Other
VARIABLES:
Time_s (seconds (s))
Time_min (minutes (min))
Time_h (hours (h))
Time_d (days (d))
CH1_A (amps (A))
CH2_A (amps (A))
CH3_A (amps (A))
CH4_A (amps (A))
CH1_uA_per_cm2 (CH1 U A Per Cm2, microamps per square centimeter (uA cm-2))
CH2_uA_per_cm2 (CH2 U A Per Cm2, microamps per square centimeter (uA cm-2))
CH3_uA_per_cm2 (CH3 U A Per Cm2, microamps per square centimeter (uA cm-2))
CH4_uA_per_cm2 (CH4 U A Per Cm2, microamps per square centimeter (uA cm-2))
ExperimentID (Experiment ID, unitless)
FluidSource (Fluid Source, unitless)
FluidcollectionCruise (Fluidcollection Cruise, unitless)
FluidcollectionDate (Fluidcollection Date, unitless)
latitude (degrees_north)
longitude (degrees_east)
WaterDepth (Water Depth, meters (m))


[AT39-01 CathodicEET CyclicVoltametry] - Cyclic voltametry data from cathodic poised potential experiments with subsurface crustal samples from CORK borehole observatories at North Pond on the Mid-Atlantic Ridge during R/V Atlantis cruise AT39-01 (Collaborative Research: Completing North Pond Borehole Experiments to Elucidate the Hydrology of Young, Slow-Spread Crust)

Cyclic voltametry data from cathodic poised potential experiments with subsurface crustal samples from CORK borehole observatories at North Pond on the Mid-Atlantic Ridge during R/V Atlantis cruise AT39-01.

cdm_data_type = Other
VARIABLES:
voltage (voltage (V))
CH1_a (amps (A))
CH1_b (amps (A))
CH1_c (amps (A))
CH2_a (amps (A))
CH2_b (amps (A))
CH2_c (amps (A))
CH3_a (amps (A))
CH3_b (amps (A))
CH3_c (amps (A))
CH4_a (amps (A))
CH4_b (amps (A))
CH4_c (amps (A))
CH1_average (microamps per square centimeter (A cm-2))
CH2_average (microamps per square centimeter (A cm-2))
CH3_average (microamps per square centimeter (A cm-2))
CH4_average (microamps per square centimeter (A cm-2))
ExperimentID (Experiment ID, unitless)
Condition (unitless)
FLOCSdeployDate (FLOCSdeploy Date, unitless)
FLOCSdepth (meters below seafloor (m))
FLOCSrecoverDate (FLOCSrecover Date, unitless)
FluidcollectionCruise (Fluidcollection Cruise, unitless)
FluidcollectionDate (Fluidcollection Date, unitless)
latitude (degrees_north)
longitude (degrees_east)
WaterDepth (Water Depth, meters (m))


[AT39-01 CathodicEET Experiment Metadata] - Metadata for cathodic poised potential experiments with subsurface crustal samples from CORK borehole observatories at North Pond on the Mid-Atlantic Ridge during R/V Atlantis cruise AT39-01 (Collaborative Research: Completing North Pond Borehole Experiments to Elucidate the Hydrology of Young, Slow-Spread Crust)

Metadata for cathodic poised potential experiments with subsurface crustal samples from CORK borehole observatories at North Pond on the Mid-Atlantic Ridge during R/V Atlantis cruise AT39-01.

cdm_data_type = Other
VARIABLES:
ExperimentID (Experiment ID, unitless)
Channel (unitless)
Treatment (unitless)
FLOCSsubstrate (unitless)
Borehole (unitless)
FluidSource (Fluid Source, unitless)
FLOCStype (unitless)
FLOCSname (unitless)
latitude (degrees_north)
longitude (degrees_east)
WaterDepth (Water Depth, meters (m))
FLOCSdepth (meters below seafloor (m))
FLOCSsourceDepth (FLOCSsource Depth, meters below seafloor (m))
MediasourceDepth (Mediasource Depth, meters below seafloor (m))
FLOCSdeploymentCruise (FLOCSdeployment Cruise, unitless)
FLOCSrecoverCruise (FLOCSrecover Cruise, unitless)
FluidcollectionCruise (Fluidcollection Cruise, unitless)
FLOCSdeployDate (FLOCSdeploy Date, unitless)
FLOCSrecoverDate (FLOCSrecover Date, unitless)
FluidcollectionDate (Fluidcollection Date, unitless)


[AT39-01 CathodicEET SEM] - Scanning Electron Microscopy (SEM) photographs of biofilms on indium tin oxide electrodes from cathodic poised potential experiments with subsurface crustal samples from CORK borehole observatories at North Pond on the Mid-Atlantic Ridge during R/V A (Collaborative Research: Completing North Pond Borehole Experiments to Elucidate the Hydrology of Young, Slow-Spread Crust)

Scanning Electron Microscopy (SEM) photographs of biofilms on indium tin oxide electrodes from cathodic poised potential experiments with subsurface crustal samples from CORK borehole observatories at North Pond on the Mid-Atlantic Ridge during R/V Atlantis cruise AT39-01.

cdm_data_type = Other
VARIABLES:
SampleID (Sample ID, unitless)
ExperimentID (Experiment ID, unitless)
Treatment (unitless)
imagename (unitless)
FLOCSsubstrate (unitless)
FLOCSdeployDate (FLOCSdeploy Date, unitless)
FLOCSdepth (meters below seafloor (m))
FLOCSrecoverDate (FLOCSrecover Date, unitless)
FluidcollectionCruise (Fluidcollection Cruise, unitless)
FluidcollectionDate (Fluidcollection Date, unitless)
latitude (degrees_north)
longitude (degrees_east)
WaterDepth (Water Depth, meters (m))
imagelink (unitless)


[Atlantic croaker otolith geochemical concentrations] - Geochemical concentrations (ppm) of six elements measured in Atlantic croaker otoliths (Collaborative Research: Consequences of sub-lethal hypoxia exposure for teleosts tracked with biogeochemical markers: a trans-basin comparison)

Geochemical concentrations (ppm) of six elements measured in otoliths of Atlantic croaker sampled on board of the R/V Oregon II during the NOAA Seamap Fall Groundfish Survey of 2014 (Oct 10 to Nov 4) and 2015 (Oct 8 to Nov 22).

cdm_data_type = Other
VARIABLES:
Distance (Microns (um))
Mg_m24 (Parts per million (ppm))
Mg_m25 (Parts per million (ppm))
Mn_m55 (Parts per million (ppm))
Sr_m88 (Parts per million (ppm))
In_115 (Parts per million (ppm))
I_m127 (Parts per million (ppm))
Ba_m138 (Parts per million (ppm))
Fish_ID (unitless)


[Atlantic Sediment Black Carbon] - Atlantic sediment black carbon, total organic carbon, and stable carbon ratio (13C) values from samples collected using a multi-corer and box corer from multiple cruises throughout the Atlantic between 1994 and 2010 (Concentrations and source assessment of black carbon across tropical Atlantic air and sediment)

These data include sediment black carbon and total organic carbon concentrations and stable carbon ratio (13C) values. These data were collected on multiple cruises in throughout the Atlantic; specifically, in the Amazon Delta (EN-480; July 2010), Sierra Leone Rise (EN-481; August 2010), Niger Delta (GeoB 4901, GeoB 4903, GeoB 4904, GeoB 4905, GeoB 4907, and GeoB 4908; February/March 1998), Senegal Delta (GeoB 9501; April/May 2003), and Northwest Argentina Basin (GeoB 2814; July/August 1994). Sediments were collected using multi-corer and box corer samples and kept frozen until analysis.

Total organic carbon and black carbon concentrations and stable carbon ratio values were determined on an isotope ratio mass spectrometer coupled to an elemental analyzer. The black carbon fraction was determined using the chemothermal oxidation at 375°C method. These data help better constrain pyrogenic carbon accumulation rates into Atlantic sediments.

These data were published in St.Laurent, et al. (2023).

cdm_data_type = Other
VARIABLES:
Site (unitless)
Depth_Interval (cenitmeters below seafloor (cmbsf))
Date (unitless)
Lat (degrees_north)
longitude (degrees_east)
Total_Organic_Carbon (percent (%))
Black_Carbon (percent (%))
d13C_Total_Organic_Carbon (per mil (0/00))
d13C_Black_Carbon (per mil (0/00))


[Atlantic silverside RNA-seq reads] - Sample and genetic accession information for RNA-seq data from whole Atlantic silverside (Menidia menidia) larvae from two populations and their F1 hybrids reared under different temperatures in 2017 (Collaborative research: The genomic underpinnings of local adaptation despite gene flow along a coastal environmental cline)

Sample and genetic accession information for RNA-seq data from whole Atlantic silverside (Menidia menidia) larvae from two populations and their F1 hybrids. Larvae were reared under two different temperatures to study temperature-dependent gene regulatory divergence between locally adapted Atlantic silverside populations in 2017.

The data are deposited in the National Center for Biotechnology Information (NCBI) Sequence Read Archive (SRA) with accession numbers SRR13523227- SRR13523268 associated with BioProject PRJNA694674 and BioSamples SAMN17531688 - SAMN17531729.

cdm_data_type = Other
VARIABLES:
BioProject (unitless)
BioSample (unitless)
Sample_name (unitless)
SRA (unitless)
taxonomy_id (unitless)
taxonomy_name (unitless)
ecotype (unitless)
dev_stage (unitless)
sex (unitless)
tissue (unitless)
sample_type (unitless)
cross (unitless)
treatment (degrees Celsius)


[Atlantic ZooPlankton AA 15N values] - Mean d15N of individual amino acids and bulk organic matter for five plankton size fractions (The Use of Nitrogen Isotopes of Amino Acids To Understand Marine Sedimentary 15N Records)

Mean d15N of individual amino acids and bulk organic matter for five plankton size fractions from R/V Sarmiento de Gamboa Malaspina_2011 in the Subtropical North Atlantic Ocean from January to March 2011

cdm_data_type = Other
VARIABLES:
Zone (unitless)
plankton_size_fraction (microns)
Bulk_15N (Bulk 15 N, per mil)
Bulk_15N_significant_difference (Bulk 15 N Significant Difference, per mil)
trophicAA_Glx (Trophic AA Glx, per mil)
trophicAA_Glx_significant_difference (Trophic AA Glx Significant Difference, per mil)
trophicAA_Asp (Trophic AA Asp, per mil)
trophicAA_Asp_significant_difference (Trophic AA Asp Significant Difference, per mil)
trophicAA_Ala (Trophic AA Ala, per mil)
trophicAA_Ala_significant_difference (Trophic AA Ala Significant Difference, per mil)
trophicAA_Ile (Trophic AA Ile, per mil)
trophicAA_Ile_significant_difference (Trophic AA Ile Significant Difference, per mil)
trophicAA_Leu (Trophic AA Leu, per mil)
trophicAA_Leu_significant_difference (Trophic AA Leu Significant Difference, per mil)
trophicAA_Pro (Trophic AA Pro, per mil)
trophicAA_Pro_significant_difference (Trophic AA Pro Significant Difference, per mil)
trophicAA_Val (Trophic AA Val, per mil)
trophicAA_Val_significant_difference (Trophic AA Val Significant Difference, per mil)
sourceAA_Gly (Source AA Gly, per mil)
sourceAA_Gly_significant_difference (Source AA Gly Significant Difference, per mil)
sourceAA_Ser (Source AA Ser, per mil)
sourceAA_Ser_significant_difference (Source AA Ser Significant Difference, per mil)
sourceAA_Lys (Source AA Lys, per mil)
sourceAA_Lys_significant_difference (Source AA Lys Significant Difference, per mil)
sourceAA_Phe (Source AA Phe, per mil)
... (7 more variables)


[Atmospheric conditions] - Wind speed, temperature, and PAR observations from Massachusetts from 2012-2015. (Eutrophication Effects on Sediment Metabolism and Benthic Algal-bacterial Coupling: An Application of Novel Techniques in a LTER Estuary)

Wind speed, temperature, and PAR observations from Massachusetts from 2012-2015.

cdm_data_type = Other
VARIABLES:
date (unitless)
time2 (Time, unitless)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
wind_speed (m s-1)
temperature (celsius)
PAR (Downwelling Photosynthetic Photon Radiance In Sea Water, umol m-2 s-1)


[Atmospheric pO2 data] - SOS-Argo floats: atmospheric pO2 data acquired in different ocean basins between May 2012 and July 2023 (The Biological Pump in the Eastern Equatorial Pacific: in situ measurements of Oxygen and Nitrate)

This dataset contains data from Argo floats deployed by the Emerson group at the University of Washington between May 2012 and July 2023.

The name SOS-Argo stands for “Special Oxygen Sensor Argo” Floats.  These floats have standard Argo sensors for hydrostatic pressure, temperature, and salinity in addition to an Aanderaa oxygen sensor  (optode) installed on a 61 cm stalk above the end cap of the float.  The tall stalk allows the float to make atmospheric pO2 measurements uncontaminated by surface waters while the float is at the surface during data transfer to shore. The atmospheric pO2 data are used for in situ calibration of the O2 sensor against atmospheric pO2.

cdm_data_type = Other
VARIABLES:
Float (unitless)
Float_Profile (unitless)
Matlab_Time (unitless)
Excel_Time (unitless)
longitude (degrees_east)
Latitude (degrees_north)
O2_tphase (degrees)
O2_temp (degrees Celsius (C))
Matlab_time_HumanReadable (unitless)
O2_optode (atmospheres (atm))


[ATR_FTIR_Absorbance] - Absorbance from Fourier transform infrared spectroscopy sample characterization experiments. (Biopolymers as carrier phases for selected natural radionuclides (of Th, Pa, Pb, Po, Be) in diatoms and coccolithophores)

Laboratory studies were conducted to examine the sorption of selected radionuclides (234Th, 233Pa, 210Po, 210Pb, and 7Be) onto inorganic (pure silica and acid-cleaned diatom frustules) and organic (diatom cells with or without silica frustules) particles in natural seawater and the role of templating biomolecules and exopolymeric substances (EPS) extracted from the same species of diatom, Phaeodactylum tricornutum, in the sorption process. The range of partition coefficients (Kd, reported as logKd) of radionuclides between water and the different particle types was 4.78\u20136.69 for 234Th, 5.23\u20136.71 for 233Pa, 4.44\u20135.86 for 210Pb, 4.47\u20134.92 for 210Po, and 4.93\u20137.23 for 7Be, similar to values reported for lab and field determinations. The sorption of all radionuclides was significantly enhanced in the presence of organic matter associated with particles, resulting in Kd one to two orders of magnitude higher than for inorganic particles only, with highest values for 7Be (logKd of 7.2). Results further indicate that EPS and frustule-embedded biomolecules in diatom cells are responsible for the sorption enhancement rather than the silica shell itself. By separating radiolabeled EPS via isoelectric focusing, we found that isoelectric points are radionuclide specific, suggesting that each radionuclide binds to specific biopolymeric functional groups, with the most efficient binding sites likely occurring in acid polysaccharides, iron hydroxides, and proteins. Further progress in evaluating the effects of diatom frustule\u2013related biopolymers on binding, scavenging, and fractionation of radionuclides would require the application of molecular-level characterization techniques.

cdm_data_type = Other
VARIABLES:
wavenumber (unitless)
EPS_Si_plus (Mass Concentration Of Silicate In Sea Water, per centimeter)
EPS_Si_minus (Mass Concentration Of Silicate In Sea Water, per centimeter)
EPS_Si_diff (Mass Concentration Of Silicate In Sea Water, per centimeter)


[Attributes of communities-at-sea] - Attributes of communities-at-sea, including the size of servicesheds and climate change risk exposure scores, determined from Vessel Trip Report (VTR) data for commercial fishing trips from 1996 to 2014 (Adaptations of fish and fishing communities to rapid climate change)

Communities-at-sea are peer-groups of vessels which share a gear type and are associated with a particular port (e.g., vessels from New Bedford, MA that use gillnets). For vessels using trawl gear, small and large trawlers are considered separate communities according to vessel length (<> 65 feet). We used Vessel Trip Report (VTR) data for commercial fishing trips from 1996 to 2014, as reported by vessel captains, to determine the at-sea \servicesheds\ or customary fishing grounds of communities.

cdm_data_type = Other
VARIABLES:
Community (unitless)
Port (unitless)
State (unitless)
Gear (unitless)
longitude (Port Lon, degrees_east)
latitude (degrees_north)
Fleetsize (number of vessels)
Trips (number of trips)
Years (number of years)
ShedArea (Shed Area, square kilometers (sq km))
RiskExposure (Risk Exposure, unitless)