[WS1005 cruise track] - Cruise track (1-min fixes; from R2R) from R/V F.G. Walton Smith cruise WS1005 from Miami to the Bahamas in 2010 (Were Protists the Beginning of the End for Stromatolites? )

1-minute resolution navigation from the WS1005 cruise aboard the R/V F.G. Walton Smith from 18 March to 24 March 2010.

cdm_data_type = Other
VARIABLES:
date_utc (unitless)
time_utc (HHMM.mmmmm)
latitude (degrees_north)
longitude (degrees_east)
sog (Speed Over Ground, m/s)
cog (Course Over Ground, degrees clockwise from North)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)


[X-ray diffraction from seafloor sulfide deposits East Pacific Rise 9-10 North] - Synchrotron micro-probe X-ray diffraction data from seafloor sulfide deposits collected during cruise AT42-09 on the East Pacific Rise (EPR) in April 2019. (Collaborative Research: From hot to cold in the dark - shifts in seafloor massive sulfide microbial communities as physical and geochemical conditions change after venting ceases)

Synchrotron micro-probe X-ray diffraction data were collected for seafloor sulfide deposits. Seafloor sulfide mineral samples were collected from hydrothermally active chimneys and inactive off-axis massive sulfide deposits at East Pacific Rise (EPR) 9.50°N in 2019-2021 on cruise AT42-09. Samples were collected using the HOV Alvin. Samples were placed in a positive-pressure glove bag flushed with N2 (g), sparged with N2, heat-sealed into mylar bags containing Anaeropaks, and stored at -20°C.

Epoxy embedded petrographic thin sections were created using these samples. Subsamples were dried for 24 hours under N2 (g), vacuum embedded in epoxy resin (Struers EpoFix Resin, 1L kit: Part #40200030) following manufacturer's guidelines, and cured under N2 (g) for 24 hours. Each epoxy-embedded sample was pre-cut using a wafering saw then sent to Spectrum Petrographics, Inc. (Washington, USA) for preparation as 30 micron thick, double-polished thin sections mounted on quartz slides using methods to limit sample exposure to water and ambient air. When not in use, thin-sections were stored under N2 (g) to limit oxidation. Thin sections were analyzed for X-ray diffraction at the X-ray Fluorescence Microprobe beamline "XFM", National Synchrotron Light Source II (NSLS II), Brookhaven National Laboratory, NY.

cdm_data_type = Other
VARIABLES:
Cruise (unitless)
File_name (unitless)
Sample_name (unitless)
sample_descrip (Time, unitless)
Hydrotherml_vent_category (unitless)
Location (unitless)
latitude (Lat_dd, degrees_north)
longitude (Lon_dd, degrees_east)
depth_f (Depth_mbs, m)
Hdg (degrees)
Date_collected (unitless)
Time_collected (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)


[Zooplankton abundance and size from Bongo plankton net tows] - Zooplankton abundance and size data from Bongo plankton net tows conducted in the subtropical Southern California Bight during February and April 2021 (RAPID: Understanding the unprecedented anchovy response to warm-water conditions in the California Current)

This dataset includes zooplankton abundance and size from Bongo plankton net tows conducted in the subtropical Southern California Bight during February and April 2021. Net tows were carried out on several cruises aboard R/V Bob and Betty Beyster and R/V Shearwater.

cdm_data_type = Other
VARIABLES:
Cruise (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
ISO_DateTime_PDT (unitless)
Line (unitless)
St (unitless)
Lat (degrees_north)
longitude (Long, degrees_east)
Tow_depth (meters (m))
Mesh_size (micrometers (um))
Taxa (unitless)
Development_stage (unitless)
ind_per_cubic_m (individuals per cubic meter)
Avg_length (micrometers (um))
SD_length (micrometers (um))
Avg_width (micrometers (um))
SD_width (micrometers (um))
Num_Measured (unitless)


[Zooplankton Densities] - Zooplankton densities collected from a seasonally hypoxic fjord on R/V Clifford A Barnes cruises from 2012-2013 (Pelagic Hypoxia project) (Consequences of hypoxia on food web linkages in a pelagic marine ecosystem)

Zooplankton densities collected from a seasonally hypoxic fjord on R/V Clifford A Barnes cruises from 2012-2013 (Pelagic Hypoxia project)

cdm_data_type = Other
VARIABLES:
station (unitless)
latitude (degrees_north)
longitude (degrees_east)
day_night (unitless)
species (unitless)
date (unitless)
time_start (unitless)
life_history_stage (unitless)
sample_code (unitless)
mesh_size (microns)
depth_max (Depth, meters)
depth_min (Depth, meters)
FWC_DS (unitless)
density (count per meter cubed)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)


[ZooProcess and Ecotaxa Output Along Physical Gradients from OAPS] - ZooProcess and Ecotaxa output from ZooSCANs of zooplankton collected along physical gradients during OAPS MOCNESS tows during R/V Oceanus northwest Atlantic 2011 cruise OC473 and R/V New Horizon northeast Pacific 2012 cruise NH1208 and imaged in 2021-2022 (Quantifying the drivers of midwater zooplankton community structure)

This dataset consists of the imaging portion of the study described below and includes ZooProcess and Ecotaxa outputs from ZooSCANs performed of zooplankton collected during Multiple Opening-Closing Net and Environmental Sensing System (MOCNESS) tows during R/V Oceanus cruise OC473 in the Northwestern Atlantic in 2011 and R/V New Horizon cruise NH1208 in the Northeastern Pacific in 2012. It includes data for this project from Ecotaxa (export v1.0), an online machine-learning platform that assists in identifying organisms and particles.  The dataset also includes particle measurements generated by ZooProcess software. Day and night stations were sampled between 0 to 1000m depths from 35 to 50 N in the northwest Atlantic in 2011, and from 35 and 50N along CLIVAR line P17N in 2012. These representative subsamples of the formalin-preserved zooplankton community from each net were imaged in 2021 and 2022.

Project description: The objective of this study was to determine how environmental variables shape zooplankton community structure in the midwater. Our primary overarching hypothesis was that the abundance and size class distribution of the zooplankton community are decoupled and are influenced by different environmental variables. Furthermore, differences in zooplankton community composition and diversity in the observed distinct oceanic biogeographical provinces additionally influences both factors. Since zooplankton contributions to biogeochemistry are size dependent, standard descriptions of zooplankton community (biomass, which is a product of size and abundance) are insufficient to generate a predictive understanding of the role of zooplankton in biogeochemical cycles. The project uses particle imaging technology and metabarcoding of archived biological samples in conjunction with open access hydrographic data from two cruises conducted in the N. Atlantic and N. Pacific to test these hypotheses.

cdm_data_type = Other
VARIABLES:
object_id (unitless)
latitude (Object_lat_start, degrees_north)
longitude (Object_lon_start, degrees_east)
object_date (unitless)
object_time (unitless)
time (Object_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
... (146 more variables)


[ZooProcess and Ecotaxa Output for Zooplankton Mediated Aggregates] - ZooProcess and Ecotaxa output from ZooSCANs of zooplankton collected with MOCNESS tows during six R/V Atlantic Explorer cruises from 2021 to 2023 (Collaborative Research: Zooplankton mediation of particle formation in the Sargasso Sea)

This dataset consists of ZooProcess and Ecotaxa outputs from ZooSCANs of plankton caught in the upper 600m using Multiple Opening-Closing Net and Environmental Sensing System (MOCNESS) tows during day- and night-time. It includes data for this project from Ecotaxa (export v1.0), an online machine-learning platform that assists in identifying organisms and particles. The dataset also includes particle measurements generated by ZooProcess software. These samples were collected and processed over two years, with three cruises a year to capture distinct seasons. The goal of this data was to assess high-resolution vertical distribution of zooplankton in order to distinguish diel vertical migrators from resident populations and to quantify contributions to particulate organic carbon flux via fecal pellet production.

Project description: The oceanic biological carbon pump refers to the export of dissolved and particulate organic carbon to the deep ocean, and it is a significant driver of atmospheric carbon uptake by the oceans. Evidence from long-term research carried out at the Bermuda Atlantic Time-series Study (BATS) site suggests that the spectrum of particles collected by gel-traps below the euphotic zone changes drastically below 150 m, which is attributed to resident populations of zooplankton that feed on vertically migrating zooplankton as well as sinking particles. The goals of this study are to investigate the role of different zooplankton taxa on both particle aggregate formation and in particle transformation, and to compare and characterize the particles generated by the zooplankton communities with those collected by particle traps.

cdm_data_type = Other
VARIABLES:
object_id (unitless)
latitude (Object_lat_start, degrees_north)
longitude (Object_lon_start, degrees_east)
object_date (unitless)
object_time (unitless)
time (Object_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
object_link (unitless)
object_depth_min (Meters)
object_depth_max (Meters)
... (143 more variables)