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     data   graph     files  public Sampling data from Gelatinous Zooplankton project from R/V Hugh R. Sharp multiple cruises in
Chesapeake Bay from 2010-2011 (DeZoZoo project)
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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 ""
attribute NC_GLOBAL awards_0_award_nid String 518410
attribute NC_GLOBAL awards_0_award_number String OCE-0961924
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward?AWD_ID=0961924 (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 Master DeZoZoo Database
Cruise Log
Note: South station near mouth of Rappohannock River
North station near mouth of Choptank River
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 2014-08-07T20:11:50Z
attribute NC_GLOBAL date_modified String 2017-06-30T17:55:52Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.687984
attribute NC_GLOBAL Easternmost_Easting double -76.194
attribute NC_GLOBAL geospatial_lat_max double 38.582
attribute NC_GLOBAL geospatial_lat_min double 37.708
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double -76.194
attribute NC_GLOBAL geospatial_lon_min double -762532.67
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL geospatial_vertical_max double 18.0
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/521596 (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 Gelatinous zooplankton samples were collected with a 280 micron-meshed Tucker Trawl.
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 521606
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 instruments_1_acronym String MOCNESS
attribute NC_GLOBAL instruments_1_dataset_instrument_nid String 521607
attribute NC_GLOBAL instruments_1_description String The Multiple Opening/Closing Net and Environmental Sensing System or MOCNESS is a family of net systems based on the Tucker Trawl principle. There are currently 8 different sizes of MOCNESS in existence which are designed for capture of different size ranges of zooplankton and micro-nekton Each system is designated according to the size of the net mouth opening and in two cases, the number of nets it carries. The original MOCNESS (Wiebe et al, 1976) was a redesigned and improved version of a system described by Frost and McCrone (1974).(from MOCNESS manual) This designation is used when the specific type of MOCNESS (number and size of nets) was not specified by the contributing investigator.
attribute NC_GLOBAL instruments_1_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L22/current/NETT0097/ (external link)
attribute NC_GLOBAL instruments_1_instrument_name String MOCNESS
attribute NC_GLOBAL instruments_1_instrument_nid String 511
attribute NC_GLOBAL instruments_1_supplied_name String MOCNESS
attribute NC_GLOBAL keywords String accuracy, bco, bco-dmo, biological, cast, chemical, comments, cruise, cruise_official, data, dataset, date, day, day_local, depth, depth_end_nom, depth_relative, depth_start_nom, dmo, duration, erddap, filt, gear, iso, ISO_DateTime_Local, latitude, local, longitude, management, mean, mesh, month, month_local, net, O2, O2_mg_L_mean, occupation, oceanography, office, official, oxygen, preliminary, preservation, sample, sample_ID, station, time, time_accuracy, time_local, tow, tow_duration, vol, vol_filt, year
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/521596/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/521596 (external link)
attribute NC_GLOBAL Northernmost_Northing double 38.582
attribute NC_GLOBAL param_mapping String {'521596': {'lat': 'master - latitude', 'depth_end_nom': 'master - depth', 'lon': 'master - longitude'}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/521596/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String University of Maryland Center for Environmental Science
attribute NC_GLOBAL people_0_affiliation_acronym String UMCES/HPL
attribute NC_GLOBAL people_0_person_name String James J. Pierson
attribute NC_GLOBAL people_0_person_nid String 51109
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 Yale University
attribute NC_GLOBAL people_1_person_name String Mary Beth Decker
attribute NC_GLOBAL people_1_person_nid String 518408
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 Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_2_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_2_person_name String Ms Dicky Allison
attribute NC_GLOBAL people_2_person_nid String 50382
attribute NC_GLOBAL people_2_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_2_role_type String related
attribute NC_GLOBAL project String DeZoZoo
attribute NC_GLOBAL projects_0_acronym String DeZoZoo
attribute NC_GLOBAL projects_0_description String Description from NSF award abstract:
The occurrence of low-oxygen waters, often called "dead zones" in coastal ecosystems throughout the world is increasing. Despite these increases, the pelagic food-web consequences of low-oxygen waters remain poorly understood. Laboratory research has demonstrated that hypoxic water (< 2 mg l-1) can result in mortality, reduced fitness and lower egg production of planktonic copepods, a major link in food webs supporting pelagic fish. Observations in the sea indicate that hypoxic bottom waters usually have depressed abundances of copepods compared to normoxic waters (> 2 mg l-1). The gradient of declining oxygen concentration with respect to depth (oxycline) can be a critical interface in coastal pelagic ecosystems by altering the migratory behavior and depth distribution of copepods and their spatial coherence with potential predators and prey. This project will result in a mechanistic understanding of how behavior and fitness of copepods are affected by hypoxia. The PIs will compare bottom-up and top-down controls on the ecology of copepods in Chesapeake Bay waters experiencing seasonal hypoxia and those that are normoxic.
Specific objectives of this project are to:
1) analyze changes in migratory behavior and fine-scale (meter) distribution of copepods across the oxycline over hourly and diel time scales while simultaneously examining the distribution and abundance of their food (phytoplankton and microzooplankton) and predators (fish, gelatinous zooplankton);
2) estimate effects of hypoxia on the "fitness" of copepods using a suite of measurements (length/weight ratios, feeding, egg production, and egg hatching success) to develop condition indices of copepods captured at different times and depths in hypoxic and normoxic waters; and
3) evaluate effects of hypoxia on copepod mortality by hypoxia-induced, stage-specific copepod mortality in hypoxic bottom waters and by changes in top-down control of copepods from predation by fish and gelatinous zooplankton.
Oxyclines may be a barrier to vertical migration of copepods and thus disruptive to predator avoidance behavior. Faced with increased predation risk from fish and jellyfish, copepods may seek refuge in hypoxic waters for part of the day and/or make short-term vertical excursions between hypoxic and normoxic waters. By regulating vertical migrations, copepods may increase utilization of microzooplankton prey concentrated in the oxycline. Hypoxic waters may elevate consumption of copepods by jellyfish and depress consumption by pelagic fish. This project will evaluate copepod distribution and migration behavior, individual fitness and stage-specific mortality in hypoxic and normoxic waters. It will examine food-web consequences of increased or decreased spatial coherence of copepods and their predators and prey in regions with hypoxic bottom waters and will contribute to fundamental understanding of food-web processes in eutrophic coastal ecosystems.
Project acronym "DeZoZoo" = "Dead Zone Zooplankton"
attribute NC_GLOBAL projects_0_end_date String 2015-02
attribute NC_GLOBAL projects_0_geolocation String Chesapeake Bay
attribute NC_GLOBAL projects_0_name String Hypoxia in Marine Ecosystems: Implications for Neritic Copepods
attribute NC_GLOBAL projects_0_project_nid String 518411
attribute NC_GLOBAL projects_0_project_website String http://www.planktoneer.com/research.html#HYPOX (external link)
attribute NC_GLOBAL projects_0_start_date String 2010-03
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 37.708
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL summary String Cruise metadata from the Gelatinous Zooplankton portion of the Dead Zone
Zooplankton project.\u00a0 Includes gear types and mesh sizes, locations,
dissolved oxygen in the water column,depths sampled and volume of water
filtered.
attribute NC_GLOBAL title String Sampling data from Gelatinous Zooplankton project from R/V Hugh R. Sharp multiple cruises in Chesapeake Bay from 2010-2011 (DeZoZoo project)
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL Westernmost_Easting double -762532.67
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable cruise   String  
attribute cruise bcodmo_name String Cruise Name
attribute cruise description String Internal cruise identifier: Dead Zone Zooplankton: First two digits denote Year (10=2010; 11=2011) Last two digits denote cruise number for that year
attribute cruise long_name String Cruise
attribute cruise units String text
variable cruise_official   String  
attribute cruise_official bcodmo_name String Cruise Name
attribute cruise_official description String UNOLS cruise identifier
attribute cruise_official long_name String Cruise Official
attribute cruise_official units String text
variable station   byte  
attribute station _FillValue byte 127
attribute station actual_range byte 1, 18
attribute station bcodmo_name String station
attribute station description String Station Count
attribute station long_name String Station
attribute station units String number
variable latitude   double  
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue double NaN
attribute latitude actual_range double 37.708, 38.582
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 -762532.67, -76.194
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 sample_ID   String  
attribute sample_ID bcodmo_name String sample
attribute sample_ID description String Unique ID for each Sample (#-AAA-#-#) First number is station; Letters denote gear type; second number is gear deployment sequence [called cast by DMO]; third number is Net number per deployment; broken up into its component parts to be served
attribute sample_ID long_name String Sample ID
attribute sample_ID nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/ACYC/ (external link)
attribute sample_ID units String alphanumeric
variable cast   byte  
attribute cast _FillValue byte 127
attribute cast actual_range byte 1, 6
attribute cast bcodmo_name String cast
attribute cast description String gear deployment sequence
attribute cast long_name String Cast
attribute cast units String number
variable net   byte  
attribute net _FillValue byte 127
attribute net actual_range byte 1, 6
attribute net bcodmo_name String net
attribute net description String net number per deployment
attribute net long_name String Net
attribute net units String number
variable occupation   String  
attribute occupation bcodmo_name String unknown
attribute occupation description String relative geolocation: South station near mouth of Rappohannock River; North station near mouth of Choptank River
attribute occupation long_name String Occupation
attribute occupation units String text
variable year   short  
attribute year _FillValue short 32767
attribute year actual_range short 2010, 2011
attribute year bcodmo_name String year
attribute year description String Year
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 4-digit year
variable month_local   byte  
attribute month_local _FillValue byte 127
attribute month_local actual_range byte 5, 9
attribute month_local bcodmo_name String month_local
attribute month_local description String month
attribute month_local long_name String Month Local
attribute month_local units String number
variable day_local   byte  
attribute day_local _FillValue byte 127
attribute day_local actual_range byte 21, 31
attribute day_local bcodmo_name String day_local
attribute day_local description String day of the month
attribute day_local long_name String Day Local
attribute day_local units String number
variable time_local   String  
attribute time_local bcodmo_name String time
attribute time_local description String time of net tow
attribute time_local long_name String Time Local
attribute time_local nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/AHMSAA01/ (external link)
attribute time_local units String HH:MM;24-hour clock
variable gear   String  
attribute gear bcodmo_name String instrument
attribute gear description String type of trawl
attribute gear long_name String Gear
attribute gear units String text
variable mesh   short  
attribute mesh _FillValue short 32767
attribute mesh actual_range short 200, 4000
attribute mesh bcodmo_name String net_mesh
attribute mesh description String Size of Mesh
attribute mesh long_name String Mesh
attribute mesh units String microns
variable depth_relative   String  
attribute depth_relative bcodmo_name String depth_comment
attribute depth_relative description String Depth of a net: surface= surface to above pycnocline; pycnocline = through pycnocline; below pycnocline = between bottom and pycnocline; bottom = bottom to below pycnocline
attribute depth_relative long_name String Depth
attribute depth_relative standard_name String depth
attribute depth_relative units String text
variable depth_start_nom   float  
attribute depth_start_nom _FillValue float NaN
attribute depth_start_nom actual_range float 2.5, 24.0
attribute depth_start_nom bcodmo_name String depth
attribute depth_start_nom colorBarMaximum double 8000.0
attribute depth_start_nom colorBarMinimum double -8000.0
attribute depth_start_nom colorBarPalette String TopographyDepth
attribute depth_start_nom description String Sampling depth at start of tow
attribute depth_start_nom long_name String Depth
attribute depth_start_nom nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/DEPH/ (external link)
attribute depth_start_nom standard_name String depth
attribute depth_start_nom units String meters
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, 18.0
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 Sampling depthat end 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 preservation   String  
attribute preservation bcodmo_name String unknown
attribute preservation description String Type of preservative used for the samples
attribute preservation long_name String Preservation
attribute preservation units String text
variable tow_duration   byte  
attribute tow_duration _FillValue byte 127
attribute tow_duration actual_range byte 1, 20
attribute tow_duration bcodmo_name String unknown
attribute tow_duration description String Time a net actively fished
attribute tow_duration long_name String Tow Duration
attribute tow_duration units String minutes
variable vol_filt   float  
attribute vol_filt _FillValue float NaN
attribute vol_filt actual_range float 36.0, 786.8
attribute vol_filt bcodmo_name String vol_filt
attribute vol_filt description String Amount of water filtered
attribute vol_filt long_name String Vol Filt
attribute vol_filt units String cubic meters
variable O2_mg_L_mean   float  
attribute O2_mg_L_mean _FillValue float NaN
attribute O2_mg_L_mean actual_range float 0.1, 10.4
attribute O2_mg_L_mean bcodmo_name String Dissolved_Oxygen
attribute O2_mg_L_mean description String Dissolved Oxygen averaged over the depth of a fishing net
attribute O2_mg_L_mean long_name String O2 Mg L Mean
attribute O2_mg_L_mean units String milligrams per liter
variable time_accuracy   float  
attribute time_accuracy _FillValue float NaN
attribute time_accuracy actual_range float 0.0, 100.0
attribute time_accuracy bcodmo_name String unknown
attribute time_accuracy description String Percent of time net fished within designated depths to an accuracy of plus or minus 1 minute
attribute time_accuracy long_name String Time Accuracy
attribute time_accuracy units String minutes
variable ISO_DateTime_Local   String  
attribute ISO_DateTime_Local bcodmo_name String ISO_DateTime_Local
attribute ISO_DateTime_Local description String ISO standard formatted Time
attribute ISO_DateTime_Local long_name String ISO Date Time Local
attribute ISO_DateTime_Local units String alphanumeric
variable comments   String  
attribute comments bcodmo_name String comment
attribute comments description String notes
attribute comments long_name String Comments
attribute comments 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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