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     data   graph     files  public Abundance and proportion of ichthyoplankton of the Northeast U.S. Shelf from surveys
conducted during the MARMAP (1977-1987) and EcoMon (1999-2008) programs.
   ?         M   background (external link) RSS Subscribe BCO-DMO bcodmo_dataset_560448

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 MARMAP used mainly a fixed station design covering the sample area of each
survey approximately evenly (Sibunka and Silverman 1984, 1989).\u00a0 EcoMon
sampled the same spatial extent of the shelf as MARMAP, but used a random-
stratified design based on the NEFSC bottom trawl survey design (Azarovitz
1981). The number of plankton strata (n = 47) is lower than the bottom trawl
survey (n = 108) as the narrow inshore stratum and the offshore shelf-break
stratum of the bottom trawl survey (Azarovitz 1981) are combined in the EcoMon
plankton sampling design.\u00a0 The area encompassed by each stratum
determined the number of samples in that stratum.\u00a0 The number of stations
sampled during an EcoMon survey is approximately 30 % less than that of
MARMAP.\u00a0 Samples were collected four to eight times per year (primarily:
January-February, March-April, May-June, July-August, September-October, and
November-December) for each program (Richardson et al. 2010).

The basic station protocols were very similar for MARMAP and EcoMon (Jossi and
Marak 1983, Ejsymont and Sherman 2000).\u00a0 Samples were collected both day
and night using a 61-cm bongo.\u00a0 Net tow speed was approximately 1.5
knots. Double oblique tows were a minimum of 5-mintues in duration, and fished
from the surface to within 5-m of the seabed or to a maximum depth of 200-m.
The volume filtered of all collections was measured with mechanical flowmeters
mounted across the mouth of each net. Mesh size of the net differed between
the programs, and was 505-\u03bcm during MARMAP and 333-\u03bcm during
EcoMon.\u00a0 Samples were preserved in 5% formalin.

Processing of most samples was conducted at the Morski Instytut Rybacki in
Szczecin, Poland; the remaining samples were processed at the NEFSC or the
Atlantic Reference Center, St Andrews, Canada. Larvae were identified to the
lowest possible taxon and enumerated for each sample. Plankton tows differ
with respect to volume of water filtered and maximum tow depth. In order to
make data values comparable, these values were normalized through the use of a
standard haul factor: h = z * 10 / v, where z = maximum tow depth (in meters)
and v = volume of water filtered (in meters cubed). Taxon abundance for each
station was standardized to number under 10 \u2022 m-2 sea surface (Morse
1989).

References:
Azarovitz TR. 1981. A brief historical review of the Woods Hole Laboratory
trawl survey time series. Canadian Special Publication of Fisheries and
Aquatic Sciences. 58:62-7.

Ejsymont L, Sherman K. 2000. Poland and the United States' cooperation in
fisheries ecology: a multidecadal retrospective. Bulletin Sea Fisheries
Institute Gdynia. 3(3-10).

Jossi JW, Marak RR. 1983. MARMAP plankton survey manual. US Department of
Commerce, NOAA Technical Memo. NMFS-F/NEC-21:258 p.
URL:\u00a0[http://nefsc.noaa.gov/publications/tm/pdfs/tmfnec21.pdf](\\"http://nefsc.noaa.gov/publications/tm/pdfs/tmfnec21.pdf\\")

Morse W. 1989. Catchability, Growth, and Mortality of Larval Fishes. Fish Bul.
87(3):417-46.
URL:\u00a0[http://fishbull.noaa.gov/873/morse.pdf](\\"http://fishbull.noaa.gov/873/morse.pdf\\")

Richardson DE, Hare JA, Overholtz WJ, Johnson DL. Development of long-term
larval indices for Atlantic herring (Clupea harengus) on the northeast US
continental shelf. 2010. Ices Journal of Marine Science. 67(4):617-27.
doi:10.1093/icesjms/fsp276

Sibunka JD, Silverman MJ. 1984. MARMAP surveys of the continental shelf from
Cape Hatteras, North Carolina to Cape Sable, Nova Scotia (1977-1983). Atlas
No. 1. Summary of operations. US Department of Commerce, NOAA Technical Memo.
NMFS-F/NEC-33:306 p.

Sibunka JD, Silverman MJ. 1989. MARMAP surveys of the continental shelf from
Cape Hatteras, North Carolina to Cape Sable, Nova Scotia (1984-87). Atlas No.
3. Summary of operations. US Department of Commerce, NOAA Technical Memo.
NEFC-F/NEC-68:197 p.
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String Northeast U.S. Ichthyoplankton
From The Northeast Fisheries Science Center (NEFSC) MARMAP and EcoMon Surveys
PI: Dr. Jon Hare (NOAA-NEFSC)
Contact: Harvey Walsh (NOAA-NEFSC)
Version: 16 June 2015
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 2015-06-16T18:28:46Z
attribute NC_GLOBAL date_modified String 2020-01-14T21:24:30Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.560448.1
attribute NC_GLOBAL Easternmost_Easting double -65.91371179
attribute NC_GLOBAL geospatial_lat_max double 44.26110273
attribute NC_GLOBAL geospatial_lat_min double 35.87810748
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double -65.91371179
attribute NC_GLOBAL geospatial_lon_min double -75.69231598
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL infoUrl String https://www.bco-dmo.org/dataset/560448 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL instruments_0_acronym String MARMAP Bongo Net
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 560559
attribute NC_GLOBAL instruments_0_description String A non-opening-closing descendant of the McGowan/Brown Bongo net, consisting of a pair of circular hoops (61 cm in diameter and 30 cm long) joined by a central yoke which is clamped to the towing cable. The nets are 61 cm in diameter and have a cylindrical section 147 cm long and a conical section 153 cm long. Mesh sizes from 0.1 to 0.5 mm have been used, but normally 0.333 mm is used. A flowmeter is present in each hoop [Posgay and Marak (1980), Fig. 1].
attribute NC_GLOBAL instruments_0_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L22/current/NETT0089/ (external link)
attribute NC_GLOBAL instruments_0_instrument_name String MARMAP Bongo Net
attribute NC_GLOBAL instruments_0_instrument_nid String 672
attribute NC_GLOBAL keywords String abund, area, bco, bco-dmo, biological, chemical, data, dataset, dmo, erddap, latitude, longitude, management, mean, mean_abund, oceanography, office, preliminary, proportion, rel, rel_proportion, season, strata, taxa, year
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/560448/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/560448 (external link)
attribute NC_GLOBAL Northernmost_Northing double 44.26110273
attribute NC_GLOBAL param_mapping String {'560448': {'lat': 'flag - latitude', 'lon': 'flag - longitude'}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/560448/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String Northeast Fisheries Science Center - Narragansett
attribute NC_GLOBAL people_0_affiliation_acronym String NOAA NEFSC
attribute NC_GLOBAL people_0_person_name String Jonathan Hare
attribute NC_GLOBAL people_0_person_nid String 51164
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 Northeast Fisheries Science Center - Narragansett
attribute NC_GLOBAL people_1_affiliation_acronym String NOAA NEFSC
attribute NC_GLOBAL people_1_person_name String Harvey Walsh
attribute NC_GLOBAL people_1_person_nid String 560345
attribute NC_GLOBAL people_1_role String Contact
attribute NC_GLOBAL people_1_role_type String related
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 Shannon Rauch
attribute NC_GLOBAL people_2_person_nid String 51498
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 NEFSC Ichthyoplankton
attribute NC_GLOBAL projects_0_acronym String NEFSC Ichthyoplankton
attribute NC_GLOBAL projects_0_description String The Northeast Fisheries Science Center (NEFSC) has conducted several ichthyoplankton collection programs on the NEUS Shelf over the past forty years including the Marine Resources Monitoring, Assessment, and Prediction program (MARMAP, 1977 - 1987) and Ecosystem Monitoring (EcoMon, 1999 - present) program (Richardson et al. 2010). Both MARMAP and EcoMon were designed as multi-species plankton surveys, and sampling effort covered the entire NEUS Shelf from Cape Hatteras, North Carolina, to Cape Sable, Nova Scotia (Figure 1, Sibunka and Silverman 1984, 1989; Richardson et al. 2010).
References:
Richardson DE, Hare JA, Overholtz WJ, Johnson DL. 2010. Development of long-term larval indices for Atlantic herring (Clupea harengus) on the northeast US continental shelf. Ices Journal of Marine Science. 67(4):617-27
Sibunka JD, Silverman MJ. 1984. MARMAP surveys of the continental shelf from Cape Hatteras, North Carolina to Cape Sable, Nova Scotia (1977-1983). Atlas No. 1. Summary of operations. US Department of Commerce, NOAA Technical Memo. NMFS-F/NEC-33:306 p.
Sibunka JD, Silverman MJ. 1989. MARMAP surveys of the continental shelf from Cape Hatteras, North Carolina to Cape Sable, Nova Scotia (1984-87). Atlas No. 3. Summary of operations. US Department of Commerce, NOAA Technical Memo. NEFC-F/NEC-68:197 p.
attribute NC_GLOBAL projects_0_end_date String 2008-12
attribute NC_GLOBAL projects_0_geolocation String Northeast U.S. Shelf Ecosystem from Cape Hatteras, North Carolina to Cape Sable, Nova Scotia
attribute NC_GLOBAL projects_0_name String Northeast Fisheries Science Center Ichthyoplankton Collection
attribute NC_GLOBAL projects_0_project_nid String 560452
attribute NC_GLOBAL projects_0_start_date String 1977-01
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 35.87810748
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL summary String Abundance and proportion of ichthyoplankton of the Northeast U.S. Shelf. Ichthyoplankton data from several surveys conducted during the Marine Resources Monitoring, Assessment, and Prediction (MARMAP; 1977-1987) and Ecosystem Monitoring (EcoMon; 1999-2008) programs.\r\n\r\nThe Northeast Fisheries Science Center (NEFSC) has conducted several ichthyoplankton collection programs on the NEUS Shelf over the past forty years including the Marine Resources Monitoring, Assessment, and Prediction program (MARMAP, 1977 - 1987) and Ecosystem Monitoring (EcoMon, 1999 - present) program (Richardson et al. 2010). Both MARMAP and EcoMon were designed as multi-species plankton surveys, and sampling effort covered the entire NEUS Shelf from Cape Hatteras, North Carolina, to Cape Sable, Nova Scotia (Figure 1, Sibunka and Silverman 1984, 1989; Richardson et al. 2010).
attribute NC_GLOBAL title String Abundance and proportion of ichthyoplankton of the Northeast U.S. Shelf from surveys conducted during the MARMAP (1977-1987) and EcoMon (1999-2008) programs.
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL Westernmost_Easting double -75.69231598
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable taxa   String  
attribute taxa bcodmo_name String taxon
attribute taxa description String Species/taxonomic name.
attribute taxa long_name String Taxa
attribute taxa units String text
variable year   short  
attribute year _FillValue short 32767
attribute year actual_range short 1977, 2008
attribute year bcodmo_name String year
attribute year description String 4 digit GMT 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 dimensionless
variable season   byte  
attribute season _FillValue byte 127
attribute season actual_range byte 1, 6
attribute season bcodmo_name String season
attribute season description String 1 digit code for bimonthly sample collection period: 1=January-February; 2=March-April; 3=May-June; 4=July-August; 5=September-October; 6=November-December.
attribute season long_name String Season
attribute season units String dimensionless
variable strata   byte  
attribute strata _FillValue byte 127
attribute strata actual_range byte 1, 47
attribute strata bcodmo_name String unknown
attribute strata description String 2 digit code for EcoMon plankton strata.
attribute strata long_name String Strata
attribute strata units String dimensionless
variable latitude   double  
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue double NaN
attribute latitude actual_range double 35.87810748, 44.26110273
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 Strata latitude center in decimal degrees
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 -75.69231598, -65.91371179
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 Strata longitude center in decimal degrees
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 area   float  
attribute area _FillValue float NaN
attribute area actual_range float 923.79, 15368.0
attribute area bcodmo_name String unknown
attribute area description String Strata area in square kilometers
attribute area long_name String Area
attribute area units String square kilomters (km^2)
variable mean_abund   double  
attribute mean_abund _FillValue double NaN
attribute mean_abund actual_range double 0.0, 81972.19667
attribute mean_abund bcodmo_name String abundance
attribute mean_abund description String Strata mean abundance (mean number of larvae under 10 m^2 sea surface)
attribute mean_abund long_name String Mean Abund
attribute mean_abund nerc_identifier String https://vocab.nerc.ac.uk/collection/P03/current/B070/ (external link)
attribute mean_abund units String mean number of adults
variable rel_proportion   double  
attribute rel_proportion _FillValue double NaN
attribute rel_proportion actual_range double 0.0, 100.0
attribute rel_proportion bcodmo_name String relative_abund
attribute rel_proportion description String Strata relative proportion (% collected in a stratum for that season and year)
attribute rel_proportion long_name String Rel Proportion
attribute rel_proportion units String percentage (%)

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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