Gear Selectivity Survey - Haddock

Description

Cooperative Haddock/Atlantic Cod Separator Trawl Experiment (URI Sea Grant/Fishing Industry) Haddock and cod associate in space and time in the waters of the northeast U.S. shelf. While haddock populations are healthy, Atlantic cod populations are severely depleted. Therefore, the challenge for fisherman is to harvest haddock while avoiding Atlantic cod. Haddock and Atlantic cod are known to behave differently to the approach of trawl gear, with haddock rising and cod diving. This study was intended to evaluate the reduction of Atlantic cod bycatch while fishing for haddock with a modified trawl. This trawl was equipped with large mesh panels in the lower bellies. Two vessels were each equipped with both the experimental trawl and a control trawl. Side by side comparative tows were made, with each vessel switching between the two nets throughout each sampling day. Atlantic cod catch reductions were evaluated.

Resources

Name Format Description Link
57 Compressed Zipped Folder contains Support Table Entities for this data set SVDBS_SupportTables.zip contains Entities - SVDBS_CLOUD.csv - SVDBS_GEAR_CONDITION.csv - SVDBS_HAUL_VALUE.csv - SVDBS_MATURITY_CODES.csv - SVDBS_SEX_CODES.csv - SVDBS_STATION_VALUE.csv - SVDBS_SVCRUISE_PURPOSE.csv - SVDBS_SVCRUISE_STATUS.csv - SVDBS_SVGEAR.csv - SVDBS_SVMSTRATA.csv - SVDBS_SV_VESSEL.csv - SVDBS_WEATHER.csv - SVDBS_XBT.csv Data extracted on 8/8/2017 https://storage.googleapis.com/nmfs_odp_nefsc/PARR/PEMAD/ESB/SVDBS/SVDBS_SupportTables.zip
0 4 Files: - 28032_UNION_FSCS_SVBIO.csv - 28032_UNION_FSCS_SVCAT.csv - 28032_UNION_FSCS_SVLEN.csv - 28032_UNION_FSCS_SVSTA.csv Data extracted on 5/8/2019 https://console.cloud.google.com/storage/browser/nmfs_odp_nefsc/PARR/FMRD/NCRP/28032
0 View the complete metadata record on InPort for more information about this dataset. https://www.fisheries.noaa.gov/inport/item/28032
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
33 NOAA Data Management Plan for this record on InPort. https://www.fisheries.noaa.gov/inportserve/waf/noaa/nmfs/nefsc/dmp/pdf/28032.pdf

Tags

  • haddock
  • demersal
  • benthic
  • survey
  • doc/noaa/nmfs/nefsc
  • noaa
  • gear
  • northeast fisheries science center
  • northwest atlantic
  • gulf of maine
  • u.s. department of commerce
  • national marine fisheries service
  • pelagic
  • cooperative research
  • northeast cooperative research program (ncrp)
  • 2005
  • southern new england shelf
  • 2006

Topics

Categories