Cooperative Research Paired Trawl Sweep Comparison Study

Description

In the spring of 2009, Northeast Fisheries Science Center (NEFSC) replaced the previous standard bottom trawl gear (Yankee 36) with a new standard survey trawl designed in close collaboration with the fishing industry and local net manufacturers. Some stakeholders expressed concern that the rockhopper sweep introduced with this gear was not suitable for the efficient capture of flatfish and could therefore bias survey estimates. To address this question, a paired trawl experiment was conducted during the fall of 2009 and the spring and fall of 2010 aboard three chartered fishing vessels, the Mary K, the Moragh K, and the Endurance. The new standard survey trawl with rockhopper sweep was compared with an identical net with a 3” cookie sweep using paired tows between 2 vessels. Results in general showed significantly more flatfish caught with the cookie sweep, although differences in size distributions between the two sweeps were negligible in most cases.

Resources

Name Format Description Link
33 NOAA Data Management Plan for this record on InPort. https://www.fisheries.noaa.gov/inportserve/waf/noaa/nmfs/nefsc/dmp/pdf/27384.pdf
0 NEFSC Home Page https://www.fisheries.noaa.gov/about/northeast-fisheries-science-center
57 Support tables 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 https://storage.googleapis.com/nmfs_odp_nefsc/PARR/PEMAD/ESB/SVDBS/SVDBS_SupportTables.zip
57 The compressed file contains the following comma delimited files: 27384_UNION_FSCS_SVBIO.csv 27384_UNION_FSCS_SVCAT.csv 27384_UNION_FSCS_SVLEN.csv 27384_UNION_FSCS_SVSTA.csv https://storage.googleapis.com/nmfs_odp_nefsc/PARR/PEMAD/ESB/27384/27384_CooperativeResearchPairedTrawlSweepComparisonStudy.zip
0 View the complete metadata record on InPort for more information about this dataset. https://www.fisheries.noaa.gov/inport/item/27384
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

  • demersal
  • benthic
  • doc/noaa/nmfs/nefsc
  • 2010
  • noaa
  • northeast fisheries science center
  • flatfish
  • gulf of maine
  • 2009
  • size distribution
  • u.s. department of commerce
  • national marine fisheries service
  • cooperative research surveys
  • southern new england
  • paired trawl
  • 3" cookie sweep
  • cooperative research
  • georges bank
  • rock hopper sweep

Topics

Categories