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     data   graph     files  public Zooplankton catch data from Tucker trawls from CGOA LTOP cruises from the Coastal Gulf of
Alaska, Northeast Pacific, 2001-2003 (NEP project)
   ?     I   M   background (external link) RSS Subscribe BCO-DMO bcodmo_dataset_3010

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 The OCC/GLOBEC survey occurred along the coastal waters of the Gulf of Alaska
and in Shelikof Strait, AK during 2001-2004. Transects sampled during the
survey were perpendicular to shore and extended from nearshore across the
continental shelf to oceanic waters beyond the 200-m shelf break. The survey
was conducted aboard the contract fishing vessel F/V Great Pacific during
2001-2002 and 2004, and aboard NOAA Ship Miller Freeman during 2003.

Fish samples were collected in a 198-m long mid-water rope trawl with
hexagonal mesh wings and body, and a 1.2-cm mesh liner in the codend. The rope
trawl was towed at 6.5 to 9.3 km \u2022 hour-1, at or near surface, and had a
typical spread of 40-m horizontally and 15-m vertically. All tows lasted 30
minutes and covered 2.8 to 4.6 km, and sampling was done during daylight
hours; however, tows occurred during night as part of a 24-hour repeat
sampling of a single station for one day during 2001 and 2003.

Once the net was hauled aboard, salmon and other fishes were sorted by species
and counted. Standard biological measurements including fork length, body
weight, and sex were taken from sub-samples of all salmon species. Sub-samples
of juvenile pink (Oncorhynchus gorbuscha), chum (O. keta), and sockeye (O.
nerka) salmon were frozen whole for laboratory analyses of food habits,
otolith hatchery thermal marks (pink and chum salmon), and genetic analysis
(chum salmon).

Plankton samples were collected using a 1-m2 Tucker trawl fitted with a 505-um
mesh net that was towed near surface (approximately 1 knot) for 5 minutes
(2001-2003 surveys). During 2004, plankton samples were collected using a WP-2
net fitted with a 253-um mesh net that was deployed vertically to a depth of
100-m depth. The volume of water filtered by the net was estimated using flow
meters. Plankton samples were transferred into vials, preserved in 5% formalin
onboard the ship, and stored until a laboratory analysis was completed.
attribute NC_GLOBAL awards_0_award_nid String 54767
attribute NC_GLOBAL awards_0_award_number String OCE-0109078
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=0109078 (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 Phillip R. Taylor
attribute NC_GLOBAL awards_0_program_manager_nid String 50451
attribute NC_GLOBAL awards_1_award_nid String 55044
attribute NC_GLOBAL awards_1_award_number String unknown NEP NOAA
attribute NC_GLOBAL awards_1_funder_name String National Oceanic and Atmospheric Administration
attribute NC_GLOBAL awards_1_funding_acronym String NOAA
attribute NC_GLOBAL awards_1_funding_source_nid String 352
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String Gulf of Alaska Tucker Trawl catch data
2001 - 2003
PI:
mesh size = 505 microns
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 2010-06-16T20:40:39Z
attribute NC_GLOBAL date_modified String 2020-01-16T21:03:32Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.3010.1
attribute NC_GLOBAL Easternmost_Easting double -137.1962
attribute NC_GLOBAL geospatial_lat_max double 60.0407
attribute NC_GLOBAL geospatial_lat_min double 55.6635
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double -137.1962
attribute NC_GLOBAL geospatial_lon_min double -155.2792
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL geospatial_vertical_max double 20.0
attribute NC_GLOBAL geospatial_vertical_min double 1.0
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/3010 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL instruments_0_acronym String Tucker Trawl
attribute NC_GLOBAL instruments_0_dataset_instrument_description String Plankton samples were collected using a 1-m2 Tucker trawl fitted with a 505-micron mesh net that was towed near the surface (for approximately 1 knot) for 5 minutes.
Volume of water filtered by each net was estimated by flow meters and the plankton samples were preserved in 5% formalin.
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 4792
attribute NC_GLOBAL instruments_0_description String The original Tucker Trawl, a net with a rectangular mouth opening first built in 1951 by G.H. Tucker, was not an opening/closing system, but shortly thereafter it was modified so that it could be opened and closed.  The original had a 183 cm by 183 cm flexible rectangular mouth opening 914 cm long net with 1.8 cm stretched mesh for the first 457 cm and 1.3 cm mesh for last 457 cm. 152 cm of coarse plankton or muslin netting lined the end of the net. Tucker designed the net to collect animals associated with the deep scattering layers, principally euphausiids, siphonophores, and midwater fish. (from Wiebe and Benfield, 2003). Currently used Tucker Trawls usually have 1-m2 openings and can have a single net or multiple nets on the frame.
attribute NC_GLOBAL instruments_0_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L22/current/NETT0161/ (external link)
attribute NC_GLOBAL instruments_0_instrument_name String Tucker Trawl
attribute NC_GLOBAL instruments_0_instrument_nid String 450
attribute NC_GLOBAL instruments_0_supplied_name String Tucker Trawl
attribute NC_GLOBAL keywords String aliq, aliquot, bco, bco-dmo, biological, catch, chemical, comments, comments_catch, comments_tow, count, count_aliq, count_total, cruiseid, data, dataset, day, day_local, depth, disp, disp_vol, dmo, duration, erddap, habitat, haul, haul_id, lat_end, latitude, local, lon_end, longitude, management, month, month_local, oceanography, office, preliminary, settled, sex, start, station, taxon, time, time_local_start, total, tow, vol, vol_settled, year, yrday, yrday_local
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/3010/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/3010 (external link)
attribute NC_GLOBAL Northernmost_Northing double 60.0407
attribute NC_GLOBAL param_mapping String {'3010': {'depth': 'flag - depth', 'lon_start': 'flag - longitude', 'lat_start': 'flag - latitude'}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/3010/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String National Oceanic and Atmospheric Administration
attribute NC_GLOBAL people_0_affiliation_acronym String NOAA-PMEL
attribute NC_GLOBAL people_0_person_name String Dr Edward D. Cokelet
attribute NC_GLOBAL people_0_person_nid String 50466
attribute NC_GLOBAL people_0_role String Co-Principal Investigator
attribute NC_GLOBAL people_0_role_type String originator
attribute NC_GLOBAL people_1_affiliation String University of Alaska Fairbanks
attribute NC_GLOBAL people_1_affiliation_acronym String UAF
attribute NC_GLOBAL people_1_person_name String Dr Kenneth O Coyle
attribute NC_GLOBAL people_1_person_nid String 50498
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 Alaska Fairbanks
attribute NC_GLOBAL people_2_affiliation_acronym String UAF
attribute NC_GLOBAL people_2_person_name String Seth L. Danielson
attribute NC_GLOBAL people_2_person_nid String 50470
attribute NC_GLOBAL people_2_role String Co-Principal Investigator
attribute NC_GLOBAL people_2_role_type String originator
attribute NC_GLOBAL people_3_affiliation String National Oceanic and Atmospheric Administration - Alaska Fisheries Science Center
attribute NC_GLOBAL people_3_affiliation_acronym String NOAA-AFSC-Auke
attribute NC_GLOBAL people_3_person_name String Dr Edward V. Farley
attribute NC_GLOBAL people_3_person_nid String 50465
attribute NC_GLOBAL people_3_role String Co-Principal Investigator
attribute NC_GLOBAL people_3_role_type String originator
attribute NC_GLOBAL people_4_affiliation String National Oceanic and Atmospheric Administration - Alaska Fisheries Science Center
attribute NC_GLOBAL people_4_affiliation_acronym String NOAA-AFSC-Auke
attribute NC_GLOBAL people_4_person_name String Dr Jamal Hasan Moss
attribute NC_GLOBAL people_4_person_nid String 50467
attribute NC_GLOBAL people_4_role String Scientist
attribute NC_GLOBAL people_4_role_type String originator
attribute NC_GLOBAL people_5_affiliation String University of Washington
attribute NC_GLOBAL people_5_affiliation_acronym String UW
attribute NC_GLOBAL people_5_person_name String Dr Jamal Hasan Moss
attribute NC_GLOBAL people_5_person_nid String 50467
attribute NC_GLOBAL people_5_role String Scientist
attribute NC_GLOBAL people_5_role_type String originator
attribute NC_GLOBAL people_6_affiliation String University of Washington
attribute NC_GLOBAL people_6_affiliation_acronym String UW
attribute NC_GLOBAL people_6_person_name String Dr Jamal Hasan Moss
attribute NC_GLOBAL people_6_person_nid String 50467
attribute NC_GLOBAL people_6_role String Contact
attribute NC_GLOBAL people_6_role_type String related
attribute NC_GLOBAL people_7_affiliation String National Oceanic and Atmospheric Administration - Alaska Fisheries Science Center
attribute NC_GLOBAL people_7_affiliation_acronym String NOAA-AFSC-Auke
attribute NC_GLOBAL people_7_person_name String Dr Jamal Hasan Moss
attribute NC_GLOBAL people_7_person_nid String 50467
attribute NC_GLOBAL people_7_role String Contact
attribute NC_GLOBAL people_7_role_type String related
attribute NC_GLOBAL people_8_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_8_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_8_person_name String Nancy Copley
attribute NC_GLOBAL people_8_person_nid String 50396
attribute NC_GLOBAL people_8_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_8_role_type String related
attribute NC_GLOBAL project String NEP
attribute NC_GLOBAL projects_0_acronym String NEP
attribute NC_GLOBAL projects_0_description String Program in a Nutshell
Goal: To understand the effects of climate variability and climate change on the distribution, abundance and production of marine animals (including commercially important living marine resources) in the eastern North Pacific. To embody this understanding in diagnostic and prognostic ecosystem models, capable of capturing the ecosystem response to major climatic fluctuations.
Approach: To study the effects of past and present climate variability on the population ecology and population dynamics of marine biota and living marine resources, and to use this information as a proxy for how the ecosystems of the eastern North Pacific may respond to future global climate change. The strong temporal variability in the physical and biological signals of the NEP will be used to examine the biophysical mechanisms through which zooplankton and salmon populations respond to physical forcing and biological interactions in the coastal regions of the two gyres. Annual and interannual variability will be studied directly through long-term observations and detailed process studies; variability at longer time scales will be examined through retrospective analysis of directly measured and proxy data. Coupled biophysical models of the ecosystems of these regions will be developed and tested using the process studies and data collected from the long-term observation programs, then further tested and improved by hindcasting selected retrospective data series.
attribute NC_GLOBAL projects_0_geolocation String Northeast Pacific Ocean, Gulf of Alaska
attribute NC_GLOBAL projects_0_name String U.S. GLOBEC Northeast Pacific
attribute NC_GLOBAL projects_0_project_nid String 2038
attribute NC_GLOBAL projects_0_project_website String http://nepglobec.bco-dmo.org (external link)
attribute NC_GLOBAL projects_0_start_date String 1997-01
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 55.6635
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL summary String Zooplankton catch data from Tucker trawls from CGOA LTOP cruises from the Coastal Gulf of Alaska, Northeast Pacific, 2001-2003.
attribute NC_GLOBAL title String Zooplankton catch data from Tucker trawls from CGOA LTOP cruises from the Coastal Gulf of Alaska, Northeast Pacific, 2001-2003 (NEP project)
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL Westernmost_Easting double -155.2792
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable year   short  
attribute year _FillValue short 32767
attribute year actual_range short 2001, 2003
attribute year bcodmo_name String year
attribute year description String year, e.g. 2004 in the format YYYY
attribute year long_name String Year
attribute year nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/YEARXXXX/ (external link)
attribute year units String unitless
variable haul_id   double  
attribute haul_id _FillValue double NaN
attribute haul_id actual_range double 2001001.0, 2003086.0
attribute haul_id bcodmo_name String tow
attribute haul_id description String Tow identification. First 4 numbers represent year, second 4 numbers represent haul number during year specified. in the format YYYYxxx
attribute haul_id long_name String Haul Id
attribute haul_id units String unitless
variable yrday_local   float  
attribute yrday_local _FillValue float NaN
attribute yrday_local actual_range float 198.0125, 219.6813
attribute yrday_local bcodmo_name String yrday_local
attribute yrday_local description String Local day and decimal time, as 326.5 for the 326th day of the year, or November 22 at 1200 hours (noon).
attribute yrday_local long_name String Yrday Local
attribute yrday_local units String dimensionless
variable month_local   String  
attribute month_local bcodmo_name String month_local
attribute month_local description String Numerical month of year, local time. in the format mm
attribute month_local long_name String Month Local
attribute month_local units String unitless
variable day_local   String  
attribute day_local bcodmo_name String day_local
attribute day_local description String Numerical day of the month, local time. in the format dd
attribute day_local long_name String Day Local
attribute day_local units String unitless
variable time_local_start   String  
attribute time_local_start bcodmo_name String time_start_local
attribute time_local_start description String Starting time of observation, local time , 24 hour clock. in the format HHMM
attribute time_local_start long_name String Time Local Start
attribute time_local_start units String unitless
variable latitude   double  
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue double NaN
attribute latitude actual_range double 55.6635, 60.0407
attribute latitude axis String Y
attribute latitude bcodmo_name String lat_start
attribute latitude colorBarMaximum double 90.0
attribute latitude colorBarMinimum double -90.0
attribute latitude description String latitude at starting time of measurement (west is negative)
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 source_name String lat_start
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 -155.2792, -137.1962
attribute longitude axis String X
attribute longitude bcodmo_name String lon_start
attribute longitude colorBarMaximum double 180.0
attribute longitude colorBarMinimum double -180.0
attribute longitude description String longitude at starting time of measurement (west is negative)
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 source_name String lon_start
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
variable lat_end   float  
attribute lat_end _FillValue float NaN
attribute lat_end actual_range float 55.6572, 60.0217
attribute lat_end bcodmo_name String lat_end
attribute lat_end colorBarMaximum double 90.0
attribute lat_end colorBarMinimum double -90.0
attribute lat_end description String latitude at end time of measurement (south in negative), in decimal degress
attribute lat_end long_name String Latitude
attribute lat_end nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LATX/ (external link)
attribute lat_end standard_name String latitude
attribute lat_end units String decimal degrees
variable lon_end   float  
attribute lon_end _FillValue float NaN
attribute lon_end actual_range float -155.2908, -137.2728
attribute lon_end bcodmo_name String lon_end
attribute lon_end colorBarMaximum double 180.0
attribute lon_end colorBarMinimum double -180.0
attribute lon_end description String longitude at end time of measurement (west is negative)
attribute lon_end long_name String Longitude
attribute lon_end nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LONX/ (external link)
attribute lon_end standard_name String longitude
attribute lon_end units String decimal degrees
variable station   String  
attribute station bcodmo_name String sta_id
attribute station description String CSE = Cape St. Elias
CC = Cape Cleare
GAK = Gulf of Alaska, Seward Line
CCH = Cape Chiniak
GP = Gore Point
CK = Cape Kekurnoi
IB =
CKA = Cape Kaguyak
IP = Icy Point
CN = Cape Nukshak
OC = Ocean Cape
attribute station long_name String Station
attribute station units String text
variable depth   double  
attribute depth _CoordinateAxisType String Height
attribute depth _CoordinateZisPositive String down
attribute depth _FillValue double NaN
attribute depth actual_range double 1.0, 20.0
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 of tow
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 duration   short  
attribute duration _FillValue short 32767
attribute duration actual_range short 255, 800
attribute duration bcodmo_name String unknown
attribute duration description String duration of tow
attribute duration long_name String Duration
attribute duration units String seconds
variable habitat   String  
attribute habitat bcodmo_name String unknown
attribute habitat description String Habitat:
Continental Shelf
Continental Slope
Nearshore
Offshore of Continental Shelf
attribute habitat long_name String Habitat
attribute habitat units String text
variable vol_settled   float  
attribute vol_settled _FillValue float NaN
attribute vol_settled actual_range float 1.0, 1022.0
attribute vol_settled bcodmo_name String unknown
attribute vol_settled description String volume of settled plankton sample
attribute vol_settled long_name String Vol Settled
attribute vol_settled units String milliliters
variable disp_vol   String  
attribute disp_vol bcodmo_name String disp_vol
attribute disp_vol description String displacement volume (biovolume) of plankton net samples
attribute disp_vol long_name String Disp Vol
attribute disp_vol units String milliliters
variable taxon   String  
attribute taxon bcodmo_name String taxon
attribute taxon description String Taxonomic group or entity. This may be a family, class, genus, species, etc.; usually this parameter will contain a mixture of taxonomic entities.
attribute taxon long_name String Taxon
attribute taxon units String text
variable cruiseid   String  
attribute cruiseid bcodmo_name String cruise_id
attribute cruiseid description String Cruise identifier
attribute cruiseid long_name String Cruiseid
attribute cruiseid units String unitless
variable sex   String  
attribute sex bcodmo_name String sex
attribute sex description String Classification by sex (male/female).
attribute sex long_name String Sex
attribute sex units String text
variable count_aliq   short  
attribute count_aliq _FillValue short 32767
attribute count_aliq actual_range short 1, 2122
attribute count_aliq bcodmo_name String count
attribute count_aliq colorBarMaximum double 100.0
attribute count_aliq colorBarMinimum double 0.0
attribute count_aliq description String Number of individuals found in fraction of sample examined.
attribute count_aliq long_name String Count Aliq
attribute count_aliq units String dimensionless
variable aliquot   short  
attribute aliquot _FillValue short 32767
attribute aliquot actual_range short 1, 1024
attribute aliquot bcodmo_name String samp_fraction_denom
attribute aliquot description String Denominator of fraction of sample examined, e.g. 4 is one quarter (1/4).
attribute aliquot long_name String Aliquot
attribute aliquot units String dimensionless
variable count_total   int  
attribute count_total _FillValue int 2147483647
attribute count_total actual_range int 0, 313856
attribute count_total bcodmo_name String count
attribute count_total colorBarMaximum double 100.0
attribute count_total colorBarMinimum double 0.0
attribute count_total description String Total number of individuals counted in the sample, calculated as the aliquot times the count in that aliquot.
attribute count_total long_name String Count Total
attribute count_total units String dimensionless
variable comments_catch   String  
attribute comments_catch bcodmo_name String comment
attribute comments_catch description String Comments pertaining to the organisms in the sample.
attribute comments_catch long_name String Comments Catch
attribute comments_catch units String text
variable comments_tow   String  
attribute comments_tow bcodmo_name String comment
attribute comments_tow description String Comments pertaining to the sampling, not the animals in the tow.
attribute comments_tow long_name String Comments Tow
attribute comments_tow units String text

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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