Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content
  • Contact Data.gov

  • Atlantic Surfclam and Ocean Quahog Survey

    Metadata Updated: September 22, 2023

    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.

    Access & Use Information

    License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Date August 15, 2023
    Metadata Created Date November 12, 2020
    Metadata Updated Date September 22, 2023
    Reference Date(s) (publication)
    Frequency Of Update asNeeded

    Metadata Source

    Harvested from NMFS NEFSC

    Additional Metadata

    Resource Type Dataset
    Metadata Date August 15, 2023
    Metadata Created Date November 12, 2020
    Metadata Updated Date September 22, 2023
    Reference Date(s) (publication)
    Responsible Party (Point of Contact, Custodian)
    Contact Email
    Guid gov.noaa.nmfs.inport:22565
    Access Constraints Cite As: Northeast Fisheries Science Center, [Date of Access]: Atlantic Surfclam and Ocean Quahog Survey [Data Date Range], https://www.fisheries.noaa.gov/inport/item/22565., Access Constraints: If data is stored on an internal NEFSC network, the requester may not have direct access to query the data unless they are also authorized for network access. | Use Constraints: User must read and fully comprehend the metadata prior to use. Applications or inferences derived from the data should be carefully considered for accuracy. Acknowledgement of NOAA/NMFS/NEFSC, as the source from which these data were obtained in any publications and/or other representations of these, data is suggested.
    Bbox East Long -66.45
    Bbox North Lat 44.583333
    Bbox South Lat 35.51
    Bbox West Long -75.95
    Coupled Resource
    Frequency Of Update asNeeded
    Harvest Object Id 17144579-79f1-42b5-9f37-7e311f24f622
    Harvest Source Id 523189fa-8edc-48e1-9ec5-f571e7dd923c
    Harvest Source Title NMFS NEFSC
    Licence NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose.
    Lineage Vessel sensor data are collected electronically using SCS. Station, catch and biological data were collected manually using paper logs until 2001. At the completion of each cruise leg, the logs were keypunched and data audited extensively prior to being released. Starting with year 2002, FSCS 1.0 was implemented to electronically capture station, catch and biological data. Data were subject to extensive audits prior to being released.
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-75.95, 35.51], [-66.45, 35.51], [-66.45, 44.583333], [-75.95, 44.583333], [-75.95, 35.51]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 1982-07-26

    Didn't find what you're looking for? Suggest a dataset here.

    data.gov

    An official website of the GSA's Technology Transformation Services

    Looking for U.S. government information and services?
    Visit USA.gov