Cod by-catch reducing gear: video observations of fish behavior from Fishing Vessels NEC-MP2000-2 in the Gulf of Maine from 2000-2002 (NEC-CoopRes project)
<p><strong>\"Groundfish Trawl nets Designed to Reduce the Bycatch of Cod\":</strong> Fishing log of experimental tows included in analysis.</p> <p>Project Leader:Michael Pol Massachusetts Division of Marine Fisheries</p> <p><em><a href=\&q...
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Biological and Chemical Oceanography Data Management Office (BCO-DMO)
2009
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Online Access: | https://search.dataone.org/view/sha256:988a54fcef185e57d5cc274a05fc6e46b124381b8dd2463470646e026863e7eb |
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dataone:sha256:988a54fcef185e57d5cc274a05fc6e46b124381b8dd2463470646e026863e7eb 2024-06-03T18:46:44+00:00 Cod by-catch reducing gear: video observations of fish behavior from Fishing Vessels NEC-MP2000-2 in the Gulf of Maine from 2000-2002 (NEC-CoopRes project) Michael Pol ENVELOPE(-70.5,-65.5,44.6,42.0) BEGINDATE: 2000-12-04T00:00:00Z ENDDATE: 2001-01-05T00:00:00Z 2009-06-25T00:00:00Z https://search.dataone.org/view/sha256:988a54fcef185e57d5cc274a05fc6e46b124381b8dd2463470646e026863e7eb unknown Biological and Chemical Oceanography Data Management Office (BCO-DMO) biota, oceans Dataset 2009 dataone:urn:node:BCODMO 2024-06-03T18:16:09Z <p><strong>\"Groundfish Trawl nets Designed to Reduce the Bycatch of Cod\":</strong> Fishing log of experimental tows included in analysis.</p> <p>Project Leader:Michael Pol Massachusetts Division of Marine Fisheries</p> <p><em><a href=\"http://northeastconsortium.org/ProjectFileDownload.pm?report_id=92&table=project_report\" target=\"_blank\">final report</a></em></p> <p>Two experimental trawl net designs substantially reduced catch rates of Atlantic cod Gadus morhua while allowing the targeting of flatfish Pleuronectidae, as compared to a standard net design. The \"Ribas\" and \"topless\" nets both modify the top half of a trawl net; the Ribas net by using large square mesh; the topless net by removing much of the netting in the top square of the net. Seventy pairs of alternate tows showed reductions of cod catch rates (kg/hr) that exceeded 76% for both nets. Catch rates of yellowtail flounder Limanda ferruginea below MLS (~33 cm TL) were more than 74% lower for both nets, compared to a standard flatfish trawl. Reductions of catch rates for winter flounder Pseudopleuronectes americanus below MLS (~33 cm TL) exceeded 61%. Significant reductions occurred in catch above MLS for yellowtail (>32%) and winter flounders (>44%) with some evidence that this reduction was lower for the topless trawl. Underwater video showed cod exiting the nets through the top mesh and through the gap made by the removal of twine. These results demonstrate that separation of Atlantic cod from flatfish is possible and practical. <em>(from final report abstract)</em></p> <p>associated datasets:<br /> <a href=\"http://nec.whoi.edu/jg/serv/nec/Gear/less_cod_by_log.html0{dir=nec.whoi.edu/jg/dir/NEC/Gear_Technology/,info=nec.whoi.edu/jg/info/NEC/Gear_Technology/less_cod_by_log}\">Cod by-catch reducing gear: fishing log</a></p> Dataset atlantic cod Gadus morhua Biological and Chemical Oceanography Data Management Office (BCO-DMO) (via DataONE) ENVELOPE(-70.5,-65.5,44.6,42.0) |
institution |
Open Polar |
collection |
Biological and Chemical Oceanography Data Management Office (BCO-DMO) (via DataONE) |
op_collection_id |
dataone:urn:node:BCODMO |
language |
unknown |
topic |
biota, oceans |
spellingShingle |
biota, oceans Michael Pol Cod by-catch reducing gear: video observations of fish behavior from Fishing Vessels NEC-MP2000-2 in the Gulf of Maine from 2000-2002 (NEC-CoopRes project) |
topic_facet |
biota, oceans |
description |
<p><strong>\"Groundfish Trawl nets Designed to Reduce the Bycatch of Cod\":</strong> Fishing log of experimental tows included in analysis.</p> <p>Project Leader:Michael Pol Massachusetts Division of Marine Fisheries</p> <p><em><a href=\"http://northeastconsortium.org/ProjectFileDownload.pm?report_id=92&table=project_report\" target=\"_blank\">final report</a></em></p> <p>Two experimental trawl net designs substantially reduced catch rates of Atlantic cod Gadus morhua while allowing the targeting of flatfish Pleuronectidae, as compared to a standard net design. The \"Ribas\" and \"topless\" nets both modify the top half of a trawl net; the Ribas net by using large square mesh; the topless net by removing much of the netting in the top square of the net. Seventy pairs of alternate tows showed reductions of cod catch rates (kg/hr) that exceeded 76% for both nets. Catch rates of yellowtail flounder Limanda ferruginea below MLS (~33 cm TL) were more than 74% lower for both nets, compared to a standard flatfish trawl. Reductions of catch rates for winter flounder Pseudopleuronectes americanus below MLS (~33 cm TL) exceeded 61%. Significant reductions occurred in catch above MLS for yellowtail (>32%) and winter flounders (>44%) with some evidence that this reduction was lower for the topless trawl. Underwater video showed cod exiting the nets through the top mesh and through the gap made by the removal of twine. These results demonstrate that separation of Atlantic cod from flatfish is possible and practical. <em>(from final report abstract)</em></p> <p>associated datasets:<br /> <a href=\"http://nec.whoi.edu/jg/serv/nec/Gear/less_cod_by_log.html0{dir=nec.whoi.edu/jg/dir/NEC/Gear_Technology/,info=nec.whoi.edu/jg/info/NEC/Gear_Technology/less_cod_by_log}\">Cod by-catch reducing gear: fishing log</a></p> |
format |
Dataset |
author |
Michael Pol |
author_facet |
Michael Pol |
author_sort |
Michael Pol |
title |
Cod by-catch reducing gear: video observations of fish behavior from Fishing Vessels NEC-MP2000-2 in the Gulf of Maine from 2000-2002 (NEC-CoopRes project) |
title_short |
Cod by-catch reducing gear: video observations of fish behavior from Fishing Vessels NEC-MP2000-2 in the Gulf of Maine from 2000-2002 (NEC-CoopRes project) |
title_full |
Cod by-catch reducing gear: video observations of fish behavior from Fishing Vessels NEC-MP2000-2 in the Gulf of Maine from 2000-2002 (NEC-CoopRes project) |
title_fullStr |
Cod by-catch reducing gear: video observations of fish behavior from Fishing Vessels NEC-MP2000-2 in the Gulf of Maine from 2000-2002 (NEC-CoopRes project) |
title_full_unstemmed |
Cod by-catch reducing gear: video observations of fish behavior from Fishing Vessels NEC-MP2000-2 in the Gulf of Maine from 2000-2002 (NEC-CoopRes project) |
title_sort |
cod by-catch reducing gear: video observations of fish behavior from fishing vessels nec-mp2000-2 in the gulf of maine from 2000-2002 (nec-coopres project) |
publisher |
Biological and Chemical Oceanography Data Management Office (BCO-DMO) |
publishDate |
2009 |
url |
https://search.dataone.org/view/sha256:988a54fcef185e57d5cc274a05fc6e46b124381b8dd2463470646e026863e7eb |
op_coverage |
ENVELOPE(-70.5,-65.5,44.6,42.0) BEGINDATE: 2000-12-04T00:00:00Z ENDDATE: 2001-01-05T00:00:00Z |
long_lat |
ENVELOPE(-70.5,-65.5,44.6,42.0) |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
_version_ |
1800870298103316480 |