Cooperative Research Twin Trawl Sweep Comparison Study

Description

The "Twin-Trawl Sweep Efficiency Study" was intended to compare the sweep efficiency and selectivity of the NEFSC standardized bottom trawl to that of a standardized trawl that differed only in sweep configuration. The experimental trawl was equipped with a small cookie sweep while the standardized trawl has a larger rock-hopper sweep. This work was done on a commercial twin-trawler that was capable of towing both nets side-by-side simultaneously. This work was undertaken in Southern New England waters in depths (30-50 meters) assumed to have high flounder and skate densities. Ninety two valid paired tows were accomplished. Efficiency and size selectivity for the two configurations were compared.

Resources

Name Format Description Link
0 Compressed Zipped Folder contains Support Table Entities for this data set SVDBS_SupportTables.zip contains Entities - 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 Data extracted on 8/8/2017 ftp://ftp.nefsc.noaa.gov/pub/dropoff/PARR/PEMAD/ESB/SVDBS
0 View the complete metadata record on InPort for more information about this dataset. https://www.fisheries.noaa.gov/inport/item/27385
33 NOAA Data Management Plan for this record on InPort. https://www.fisheries.noaa.gov/inportserve/waf/noaa/nmfs/nefsc/dmp/pdf/27385.pdf
57 The compressed file contains the following comma delimited files: 27385_UNION_FSCS_SVCAT.csv 27385_UNION_FSCS_SVLEN.csv 27385_UNION_FSCS_SVSTA.csv https://storage.googleapis.com/nmfs_odp_nefsc/PARR/PEMAD/ESB/27385/27385_CooperativeResearchTwinTrawlSweepComparisonStudy.zip
0 NEFSC Home Page https://www.fisheries.noaa.gov/about/northeast-fisheries-science-center
0 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords

Tags

  • twin trawl
  • demersal
  • benthic
  • doc/noaa/nmfs/nefsc
  • noaa
  • northeast fisheries science center
  • northwest atlantic
  • sweep efficiency
  • cookie sweep
  • 2009
  • 2008
  • u.s. department of commerce
  • national marine fisheries service
  • cooperative research surveys
  • southern new england
  • pelagic
  • cooperative research
  • rock hopper sweep
  • size selectivity

Topics

Categories