Atlantic Surfclam and Ocean Quahog Survey
The standardized NEFSC Atlantic Surfclam and Ocean Quahog Survey has covered an area from Cape Hatteras to Georges Bank. The survey was conducted every two or three years and currently, a subset of the survey area is completed annually, with the entire survey area completed every three years. The dredge had been operated in a consistent fashion using the same survey protocols and gear from 1982 until 2011. In 2012, the platform was changed to an industry vessel, which resulted in a gear change from a 5' hydraulic dredge to a 13' commercial style hydraulic dredge. Five-minute tows are made at stations that are randomly selected to provide unbiased abundance measurements. Station data includes: shipboard sensors, including ship speed and position, dredge angle, voltage and amperage of electrical current that powers the pump on the dredge (through 2011), manifold pressure, water depth and temperature. Biological data includes: catch weight, catch number, lengths, weights, and meat weights.
Resources
4 resources available
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22565_NEFSCAltanticSurfClamOceanQuahogFisheriesIndependentSurveyData.zip
ZIP -
SVDBS_SupportTables.zip
ZIP -
GCMD Keyword Forum Page
TEXT/HTML -
Full Metadata Record
TEXT/HTML
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | non-public |
| contactPoint |
{ "fn": "Chase, Peter D", "@type": "vcard:Contact", "hasEmail": "mailto:peter.chase@noaa.gov" } |
| describedByType | application/octet-steam |
| description | The standardized NEFSC Atlantic Surfclam and Ocean Quahog Survey has covered an area from Cape Hatteras to Georges Bank. The survey was conducted every two or three years and currently, a subset of the survey area is completed annually, with the entire survey area completed every three years. The dredge had been operated in a consistent fashion using the same survey protocols and gear from 1982 until 2011. In 2012, the platform was changed to an industry vessel, which resulted in a gear change from a 5' hydraulic dredge to a 13' commercial style hydraulic dredge. Five-minute tows are made at stations that are randomly selected to provide unbiased abundance measurements. Station data includes: shipboard sensors, including ship speed and position, dredge angle, voltage and amperage of electrical current that powers the pump on the dredge (through 2011), manifold pressure, water depth and temperature. Biological data includes: catch weight, catch number, lengths, weights, and meat weights. |
| distribution |
[ { "@type": "dcat:Distribution", "title": "22565_NEFSCAltanticSurfClamOceanQuahogFisheriesIndependentSurveyData.zip", "format": "ZIP", "mediaType": "application/zip", "description": "The compressed file contains the following comma delimited files: 22565_UNION_FSCS_SVBIO.csv 22565_UNION_FSCS_SVCAT.csv 22565_UNION_FSCS_SVLEN.csv 22565_UNION_FSCS_SVSTA.csv 22565_SVDBS_CRUISES.csv", "downloadURL": "https://storage.googleapis.com/nmfs_odp_nefsc/PARR/PEMAD/ESB/22565/22565_NEFSCAltanticSurfClamOceanQuahogFisheriesIndependentSurveyData.zip", "describedByType": "application/octet-stream" }, { "@type": "dcat:Distribution", "title": "SVDBS_SupportTables.zip", "format": "ZIP", "mediaType": "application/zip", "description": "The compressed file contains the following comma delimited files: SVDBS_CLOUD.csv SVDBS_MATURITY_CODES.csv SVDBS_SEX_CODES.csv SVDBS_SVGEAR.csv SVDBS_SVMSTRATA.csv SVDBS_SVVESSEL.csv SVDBS_WEATHER.csv SVDBS_XBT.csv", "downloadURL": "https://storage.googleapis.com/nmfs_odp_nefsc/PARR/PEMAD/ESB/SVDBS/SVDBS_SupportTables.zip", "describedByType": "application/octet-stream" }, { "@type": "dcat:Distribution", "title": "GCMD Keyword Forum Page", "accessURL": "https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords", "mediaType": "text/html", "description": "Global Change Master Directory (GCMD). 2026. GCMD Keywords, Version 24. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords", "describedByType": "application/octet-stream" }, { "@type": "dcat:Distribution", "title": "Full Metadata Record", "accessURL": "https://www.fisheries.noaa.gov/inport/item/22565", "mediaType": "text/html", "description": "View the complete metadata record on InPort for more information about this dataset.", "describedByType": "application/octet-stream" } ] |
| identifier | https://data.noaa.gov/waf/NOAA/nmfs/nefsc/iso/xml/22565.xml |
| keyword |
[ "bio-sampling", "fishery-independent Surveys", "benthic", "Arctica islandica", "Atlantic surf clam", "FRV Delaware II", "FV E.S.S. Pursuit", "Spisula solidissima", "abundance", "distribution", "dredge", "ocean quahog", "size composition", "Delmarva Peninsula", "Georges Bank", "Long Island", "Mid-Atlantic Bight", "DOC/NOAA/NMFS/NEFSC > Northeast Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce", "Dredge Surveys" ] |
| landingPage | https://www.fisheries.noaa.gov/inport/item/22565 |
| language |
[]
|
| license | https://creativecommons.org/publicdomain/zero/1.0/ |
| modified | 2026-04-30T00:00:00.000+00:00 |
| publisher |
{ "name": "Northeast Fisheries Science Center", "@type": "org:Organization" } |
| rights | otherRestrictions, unclassified |
| spatial | -66.45,35.51,-75.95,44.583333 |
| temporal | 1982-07-26T00:00:00+00:00/1982-07-26T00:00:00+00:00 |
| title | Atlantic Surfclam and Ocean Quahog Survey |
