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     data   graph     files  public Environmental data collected in marine lakes in Palau in 2010 from small boats    ?     I   M   background (external link) RSS Subscribe BCO-DMO bcodmo_dataset_683072

The Dataset's Variables and Attributes

Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL access_formats String .htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson
attribute NC_GLOBAL acquisition_description String Refer to the following paper for complete methodology:
Meyerhof, M. et al. 2016.\u00a0Microbial community diversity, structure and
assembly across oxygen gradients in meromictic marine lakes, Palau.
Environmental Microbiology.
doi:[10.1111/1462-2920.13416](\\"https://dx.doi.org/10.1111/1462-2920.13416\\")

In summary (extracted from above paper):
We studied five meromictic lakes in Palau: Spooky Lake (SLM), Goby Lake
(GLK), Ongeim\u2019l Tketau Lake (OTM, known colloquially as Jellyfish Lake),
Clear Lake (CLM) and Ngermeuangel Lake (NLK). One holomictic lake (Mekeald
Lake; MLN) and an ocean site at the German Channel on the southwestern side of
the islands (OS-GC) were also sampled for comparison. We vertically profiled
dissolved oxygen (DO), temperature, pH, chlorophyll fluorescence and
salinity/conductivity using a HydroLab DS5 (Hach Company, Loveland, CO, USA)
and sampled three depth layers within each meromictic lake: the mixolimnion
(0\u20135 m depth), the monimolimnion (5\u201320 m depth) and intermediate
depths near the chemocline; these intermediate depths ranged from 1 to 15 m,
depending on the depth of the chemocline within the individual lakes. We
sampled comparable depths at MLN (5\u201320 m) and OS-GC (5\u201330 m). For
QPCR analysis of functional genes (dsrA, amoA and nirS) and specific
functional groups, as well as analysis dissolved nutrient concentrations, we
collected additional samples above and below the chemocline to capture abrupt
transitions in biogeochemical conditions across this interface.

Samples were collected from small boats using a horizontal, 2.5 L GoFlo bottle
(General Oceanics, Miami, FL, USA), transferred to 1 L polycarbonate bottles,
and stored in the dark during transit to the Coral Reef Research Foundation
laboratory in Koror, Palau. Water samples were filtered using a peristaltic
pump and 0.22 um Durapore PVDF hydrophilic filters (Millipore, Billerica, MA,
USA). Filters were immediately frozen in 800 uL Sucrose-Tris-EDTA (STE) lysis
buffer (750 mM sucrose, 20 mM EDTA, 400 mM NaCl and 50 mM Tris) in 2 mL Lysing
Matrix E tubes (MP Biomedicals, Solon, OH, USA), and stored at -20 C until
transport to the United States, where they were stored at -80 C until
extraction (Dry ice and liquid nitrogen are not readily available in Palau.)

During sample filtration, 50 mL of filtrate was collected in high density
polyethylene bottles for subsequent nutrient analysis at the University of
California, Santa Barbara (UCSB) Marine Analytical Laboratory. Samples were
analyzed for ammonium (UCSB MAL analytical method for ammonium, see below;
Diamond and Huberty, 1996), nitrite (Environmental Protection Agency (EPA)
Method 353.2; Schroeder, 1997), nitrite+nitrate (EPA Method 353.2; Diamond,
1997) and phosphate (EPA Method 365.1; Huberty and Diamond, 1998), on a Lachat
QuikChem 8000 Flow Injection Analyzer (Hach Company, Loveland, CO, USA). A
handful of samples containing large concentrations of sulfide were not
analyzed for nitrate, as sulfide damages the cadmium reduction column. For
ammonium analysis, each sample was injected into a flowing carrier stream
through an injection valve, and then merged with an alkaline solution stream;
the produced ammonia was diffused through a hydrophobic, gas-permeable
membrane into a recipient stream containing a pH indicator. Colour change
occurs in the indicator solution due to an increase in pH, and the
concentration of ammonia was determined spectrophotometrically based on
absorption at 570 nm. For all analyses, a mid-range check standard bracketed
every 20 samples to verify the accuracy of the measurements, and samples that
were detected outside of the standards\u2019 range were diluted 1:10 and
reanalyzed. Detection limits were 0.10 uM for phosphate, 0.10 uM for nitrite,
0.20 uM for nitrite+nitrate and 0.10 uM for ammonium.
attribute NC_GLOBAL awards_0_award_nid String 55103
attribute NC_GLOBAL awards_0_award_number String OCE-1241255
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1241255 (external link)
attribute NC_GLOBAL awards_0_funder_name String NSF Division of Ocean Sciences
attribute NC_GLOBAL awards_0_funding_acronym String NSF OCE
attribute NC_GLOBAL awards_0_funding_source_nid String 355
attribute NC_GLOBAL awards_0_program_manager String David L. Garrison
attribute NC_GLOBAL awards_0_program_manager_nid String 50534
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String Palau 2010 Environmental Data
PI: Michael Beman (UC Merced)
Co-PI: Michael Dawson (UC Merced)
Version: 24 February 2017
attribute NC_GLOBAL Conventions String COARDS, CF-1.6, ACDD-1.3
attribute NC_GLOBAL creator_email String info at bco-dmo.org
attribute NC_GLOBAL creator_name String BCO-DMO
attribute NC_GLOBAL creator_type String institution
attribute NC_GLOBAL creator_url String https://www.bco-dmo.org/ (external link)
attribute NC_GLOBAL data_source String extract_data_as_tsv version 2.3 19 Dec 2019
attribute NC_GLOBAL date_created String 2017-02-24T21:37:03Z
attribute NC_GLOBAL date_modified String 2019-08-05T16:48:19Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.683072.1
attribute NC_GLOBAL Easternmost_Easting double 134.50855
attribute NC_GLOBAL geospatial_lat_max double 7.32285
attribute NC_GLOBAL geospatial_lat_min double 7.1165
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double 134.50855
attribute NC_GLOBAL geospatial_lon_min double 134.2693667
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL geospatial_vertical_max double 30.0
attribute NC_GLOBAL geospatial_vertical_min double 0.0
attribute NC_GLOBAL geospatial_vertical_positive String down
attribute NC_GLOBAL geospatial_vertical_units String m
attribute NC_GLOBAL infoUrl String https://www.bco-dmo.org/dataset/683072 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL instruments_0_acronym String GO-FLO
attribute NC_GLOBAL instruments_0_dataset_instrument_description String Samples were collected from small boats using a horizontal, 2.5 L GoFlo bottle (General Oceanics, Miami, FL, USA).
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 683390
attribute NC_GLOBAL instruments_0_description String GO-FLO bottle cast used to collect water samples for pigment, nutrient, plankton, etc. The GO-FLO sampling bottle is specially designed to avoid sample contamination at the surface, internal spring contamination, loss of sample on deck (internal seals), and exchange of water from different depths.
attribute NC_GLOBAL instruments_0_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/30/ (external link)
attribute NC_GLOBAL instruments_0_instrument_name String GO-FLO Bottle
attribute NC_GLOBAL instruments_0_instrument_nid String 411
attribute NC_GLOBAL instruments_0_supplied_name String GoFlo bottle
attribute NC_GLOBAL instruments_1_acronym String FIA
attribute NC_GLOBAL instruments_1_dataset_instrument_description String Samples were analyzed for ammonium, nitrite, nitrite+nitrate, and phosphate on a Lachat QuikChem 8000 Flow Injection Analyzer (Hach Company, Loveland, CO, USA).
attribute NC_GLOBAL instruments_1_dataset_instrument_nid String 683391
attribute NC_GLOBAL instruments_1_description String An instrument that performs flow injection analysis. Flow injection analysis (FIA) is an approach to chemical analysis that is accomplished by injecting a plug of sample into a flowing carrier stream. FIA is an automated method in which a sample is injected into a continuous flow of a carrier solution that mixes with other continuously flowing solutions before reaching a detector. Precision is dramatically increased when FIA is used instead of manual injections and as a result very specific FIA systems have been developed for a wide array of analytical techniques.
attribute NC_GLOBAL instruments_1_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/LAB36/ (external link)
attribute NC_GLOBAL instruments_1_instrument_name String Flow Injection Analyzer
attribute NC_GLOBAL instruments_1_instrument_nid String 657
attribute NC_GLOBAL instruments_1_supplied_name String Lachat QuikChem 8000 Flow Injection Analyzer
attribute NC_GLOBAL instruments_2_acronym String HydroLab DS5
attribute NC_GLOBAL instruments_2_dataset_instrument_description String Dissolved oxygen (DO), temperature, pH, chlorophyll fluorescence and salinity/conductivity were measured using a HydroLab DS5 Multiparameter Data Sonde (Hach Company, Loveland, CO, USA).
attribute NC_GLOBAL instruments_2_dataset_instrument_nid String 683389
attribute NC_GLOBAL instruments_2_description String Multi-parameter probes that can measure from 12 (MS5) to 16 (DS5 and DS5X) parameters simultaneously. Measurements include temperature, depth, conductivity, salinity, specific conductance, TDS, pH, ORP, dissolved oxygen, turbidity, chlorophyll a, blue-green algae, Rhodamine WT, ammonium, nitrate, chloride, PAR and total dissolved gases. These probes can be deployed at depths up to 200 m and can be used in continuous monitoring programs.
attribute NC_GLOBAL instruments_2_instrument_name String Hydrolab Series 5 probes
attribute NC_GLOBAL instruments_2_instrument_nid String 768060
attribute NC_GLOBAL instruments_2_supplied_name String HydroLab DS5
attribute NC_GLOBAL keywords String altimetry, ammonia, ammonium, bco, bco-dmo, biological, chemical, chemistry, chl, chlorophyll, concentration, cond, data, dataset, date, depth, diss, dmo, earth, Earth Science > Oceans > Ocean Chemistry > Ammonia, Earth Science > Oceans > Ocean Chemistry > Nitrate, Earth Science > Oceans > Ocean Chemistry > pH, Earth Science > Oceans > Ocean Chemistry > Phosphate, erddap, laboratory, lake, latitude, longitude, management, mass, mass_concentration_of_phosphate_in_sea_water, mole, mole_concentration_of_ammonium_in_sea_water, mole_concentration_of_nitrate_in_sea_water, mole_concentration_of_nitrite_in_sea_water, n02, nh4, nitrate, nitrite, no3, O2, O2_diss, ocean, oceanography, oceans, office, oxygen, phosphate, po4, preliminary, reported, sal, sample, satellite, scale, science, sea, sea_water_ph_reported_on_total_scale, seawater, temperature, time, total, water
attribute NC_GLOBAL keywords_vocabulary String GCMD Science Keywords
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/683072/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/683072 (external link)
attribute NC_GLOBAL Northernmost_Northing double 7.32285
attribute NC_GLOBAL param_mapping String {'683072': {'lat': 'master - latitude', 'depth': 'master - depth', 'lon': 'master - longitude'}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/683072/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String University of California-Merced
attribute NC_GLOBAL people_0_affiliation_acronym String UC Merced
attribute NC_GLOBAL people_0_person_name String John Michael Beman
attribute NC_GLOBAL people_0_person_nid String 51552
attribute NC_GLOBAL people_0_role String Principal Investigator
attribute NC_GLOBAL people_0_role_type String originator
attribute NC_GLOBAL people_1_affiliation String University of California-Merced
attribute NC_GLOBAL people_1_affiliation_acronym String UC Merced
attribute NC_GLOBAL people_1_person_name String Michael N Dawson
attribute NC_GLOBAL people_1_person_nid String 51577
attribute NC_GLOBAL people_1_role String Co-Principal Investigator
attribute NC_GLOBAL people_1_role_type String originator
attribute NC_GLOBAL people_2_affiliation String University of California-Merced
attribute NC_GLOBAL people_2_affiliation_acronym String UC Merced
attribute NC_GLOBAL people_2_person_name String John Michael Beman
attribute NC_GLOBAL people_2_person_nid String 51552
attribute NC_GLOBAL people_2_role String Contact
attribute NC_GLOBAL people_2_role_type String related
attribute NC_GLOBAL people_3_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_3_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_3_person_name String Shannon Rauch
attribute NC_GLOBAL people_3_person_nid String 51498
attribute NC_GLOBAL people_3_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_3_role_type String related
attribute NC_GLOBAL project String PaPaPro
attribute NC_GLOBAL projects_0_acronym String PaPaPro
attribute NC_GLOBAL projects_0_description String This project will survey the taxonomic, genetic, and functional diversity of the organisms found in marine lakes, and investigate the processes that cause gains and losses in this biodiversity. Marine lakes formed as melting ice sheets raised sea level after the last glacial maximum and flooded hundreds of inland valleys around the world. Inoculated with marine life from the surrounding sea and then isolated to varying degrees for the next 6,000 to 15,000 years, these marine lakes provide multiple, independent examples of how environments and interactions between species can drive extinction and speciation. Researchers will survey the microbes, algae, invertebrates, and fishes present in 40 marine lakes in Palau and Papua, and study how diversity has changed over time by retrieving the remains of organisms preserved in sediments on the lake bottoms. The project will test whether the number of species, the diversity of functional roles played by organisms, and the genetic diversity within species increase and decrease in parallel; whether certain species can greatly curtail diversity by changing the environment; whether the size of a lake determines its biodiversity; and whether the processes that control diversity in marine organisms are similar to those that operate on land.
Because biodiversity underlies the ecosystem services on which society depends, society has a great interest in understanding the processes that generate and retain biodiversity in nature. This project will also help conserve areas of economic importance. Marine lakes in the study region are important for tourism, and researchers will work closely with governmental and non-governmental conservation and education groups and with diving and tourism businesses to raise awareness of the value and threats to marine lakes in Indonesia and Palau.
attribute NC_GLOBAL projects_0_end_date String 2017-12
attribute NC_GLOBAL projects_0_geolocation String Western Pacific; Palau; Indonesia (West Papua)
attribute NC_GLOBAL projects_0_name String Do Parallel Patterns Arise from Parallel Processes?
attribute NC_GLOBAL projects_0_project_nid String 2238
attribute NC_GLOBAL projects_0_project_website String http://marinelakes.ucmerced.edu/ (external link)
attribute NC_GLOBAL projects_0_start_date String 2013-01
attribute NC_GLOBAL publisher_name String Biological and Chemical Oceanographic Data Management Office (BCO-DMO)
attribute NC_GLOBAL publisher_type String institution
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL Southernmost_Northing double 7.1165
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL summary String Environmental data collected in marine lakes in Palau in 2010 from small boats. Reported parameters include depth, temperature, conductivity, salinity, oxygen, pH, light, chlorophyll, phosphate, nitrite, ammonium, and nitrate.
attribute NC_GLOBAL title String Environmental data collected in marine lakes in Palau in 2010 from small boats
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL Westernmost_Easting double 134.2693667
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable sample   String  
attribute sample bcodmo_name String sample
attribute sample description String Sample identifier
attribute sample long_name String Sample
attribute sample nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/ACYC/ (external link)
attribute sample units String unitless
variable lake   String  
attribute lake bcodmo_name String site
attribute lake description String Lake name
attribute lake long_name String Lake
attribute lake units String unitless
variable date   String  
attribute date bcodmo_name String date
attribute date description String Date sampled, formatted as yyyy-mm-dd
attribute date long_name String Date
attribute date nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/ (external link)
attribute date source_name String date
attribute date time_precision String 1970-01-01
attribute date units String unitless
variable latitude   double  
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue double NaN
attribute latitude actual_range double 7.1165, 7.32285
attribute latitude axis String Y
attribute latitude bcodmo_name String latitude
attribute latitude colorBarMaximum double 90.0
attribute latitude colorBarMinimum double -90.0
attribute latitude description String Latitude
attribute latitude ioos_category String Location
attribute latitude long_name String Latitude
attribute latitude nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LATX/ (external link)
attribute latitude standard_name String latitude
attribute latitude units String degrees_north
variable longitude   double  
attribute longitude _CoordinateAxisType String Lon
attribute longitude _FillValue double NaN
attribute longitude actual_range double 134.2693667, 134.50855
attribute longitude axis String X
attribute longitude bcodmo_name String longitude
attribute longitude colorBarMaximum double 180.0
attribute longitude colorBarMinimum double -180.0
attribute longitude description String Longitude
attribute longitude ioos_category String Location
attribute longitude long_name String Longitude
attribute longitude nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LONX/ (external link)
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
variable depth   double  
attribute depth _CoordinateAxisType String Height
attribute depth _CoordinateZisPositive String down
attribute depth _FillValue double NaN
attribute depth actual_range double 0.0, 30.0
attribute depth axis String Z
attribute depth bcodmo_name String depth
attribute depth colorBarMaximum double 8000.0
attribute depth colorBarMinimum double -8000.0
attribute depth colorBarPalette String TopographyDepth
attribute depth description String Depth
attribute depth ioos_category String Location
attribute depth long_name String Depth
attribute depth nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/DEPH/ (external link)
attribute depth positive String down
attribute depth standard_name String depth
attribute depth units String m
variable temp   float  
attribute temp _FillValue float NaN
attribute temp actual_range float 28.8, 32.5
attribute temp bcodmo_name String temperature
attribute temp description String Temperature
attribute temp long_name String Temperature
attribute temp nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/TEMPP901/ (external link)
attribute temp units String degrees Celsius
variable cond   float  
attribute cond _FillValue float NaN
attribute cond actual_range float 33.7, 51.1
attribute cond bcodmo_name String conductivity
attribute cond description String Conductivity
attribute cond long_name String Cond
attribute cond nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/CNDC/ (external link)
attribute cond units String milliSiemens per centimeter (mS/cm)
variable sal   float  
attribute sal _FillValue float NaN
attribute sal actual_range float 21.4, 34.0
attribute sal bcodmo_name String sal
attribute sal description String Salinity
attribute sal long_name String Sal
attribute sal nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/PSALST01/ (external link)
attribute sal units String ppt
variable O2_diss   float  
attribute O2_diss _FillValue float NaN
attribute O2_diss actual_range float 0.0, 203.0
attribute O2_diss bcodmo_name String dissolved Oxygen
attribute O2_diss description String Dissolved oxygen
attribute O2_diss long_name String O2 Diss
attribute O2_diss units String micromolar (uM)
variable pH   float  
attribute pH _FillValue float NaN
attribute pH actual_range float 6.83, 8.12
attribute pH bcodmo_name String pH
attribute pH colorBarMaximum double 9.0
attribute pH colorBarMinimum double 7.0
attribute pH description String pH
attribute pH long_name String Sea Water Ph Reported On Total Scale
attribute pH nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/PHXXZZXX/ (external link)
attribute pH units String unitless
variable chl   float  
attribute chl _FillValue float NaN
attribute chl actual_range float 3.42, 256.03
attribute chl bcodmo_name String unknown
attribute chl description String Chlorophyll
attribute chl long_name String CHL
attribute chl units String micrograms per liter (ug/L)
variable phosphate   float  
attribute phosphate _FillValue float NaN
attribute phosphate actual_range float 0.0, 11.0
attribute phosphate bcodmo_name String PO4
attribute phosphate description String Phosphate
attribute phosphate long_name String Mass Concentration Of Phosphate In Sea Water
attribute phosphate units String micromolar (uM)
variable nitrite   float  
attribute nitrite _FillValue float NaN
attribute nitrite actual_range float 0.0, 0.42
attribute nitrite bcodmo_name String NO2
attribute nitrite colorBarMaximum double 1.0
attribute nitrite colorBarMinimum double 0.0
attribute nitrite description String Nitrite
attribute nitrite long_name String Mole Concentration Of Nitrite In Sea Water
attribute nitrite nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/NTRIAAZX/ (external link)
attribute nitrite units String micromolar (uM)
variable ammonium   float  
attribute ammonium _FillValue float NaN
attribute ammonium actual_range float 0.0, 268.0
attribute ammonium bcodmo_name String Ammonium
attribute ammonium colorBarMaximum double 5.0
attribute ammonium colorBarMinimum double 0.0
attribute ammonium description String Ammonium
attribute ammonium long_name String Mole Concentration Of Ammonium In Sea Water
attribute ammonium nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/AMONAAZX/ (external link)
attribute ammonium units String micromolar (uM)
variable nitrate   float  
attribute nitrate _FillValue float NaN
attribute nitrate actual_range float 0.0, 0.83
attribute nitrate bcodmo_name String NO3
attribute nitrate colorBarMaximum double 50.0
attribute nitrate colorBarMinimum double 0.0
attribute nitrate description String Nitrate
attribute nitrate long_name String Mole Concentration Of Nitrate In Sea Water
attribute nitrate nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/NTRAIGGS/ (external link)
attribute nitrate units String micromolar (uM)

The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV1, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.


 
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