A meta-analysis of vertical stratification in demersal trawl gears
A meta-analysis is presented of fishing trials that use trawl gear with horizontal separator panels to direct fish into an upper or lower codend. The analysis is applied to eight North Atlantic species: the gadoids cod (Gadus morhua), haddock (Melanogrammus aeglefinus), saithe (Pollachius virens), a...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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2017
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Online Access: | http://dx.doi.org/10.1139/cjfas-2016-0391 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfas-2016-0391 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfas-2016-0391 |
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crcansciencepubl:10.1139/cjfas-2016-0391 2024-03-03T08:44:31+00:00 A meta-analysis of vertical stratification in demersal trawl gears Fryer, R.J. Summerbell, K. O’Neill, F.G. 2017 http://dx.doi.org/10.1139/cjfas-2016-0391 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfas-2016-0391 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfas-2016-0391 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 74, issue 8, page 1243-1250 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2017 crcansciencepubl https://doi.org/10.1139/cjfas-2016-0391 2024-02-07T10:53:31Z A meta-analysis is presented of fishing trials that use trawl gear with horizontal separator panels to direct fish into an upper or lower codend. The analysis is applied to eight North Atlantic species: the gadoids cod (Gadus morhua), haddock (Melanogrammus aeglefinus), saithe (Pollachius virens), and whiting (Merlangius merlangus), the flatfish lemon sole (Microstomus kitt) and plaice (Pleuronectes platessa), and monkfish (Lophius piscatorius) and Nephrops (Nephops norvegicus). The proportion of fish that rise above the separator panel decreases as the height of the leading edge of the panel increases for six of the eight species. Only monkfish and Nephrops have no significant dependency on panel height. Cod is the only species for which separation depends on the horizontal distance of the leading edge of the panel from the ground gear, with the proportion of cod going above the panel increasing the farther the panel is from the ground gear. The time of day only affects the separation of plaice, with a greater proportion going above the panel at night than during the day. Article in Journal/Newspaper Gadus morhua North Atlantic Canadian Science Publishing Canadian Journal of Fisheries and Aquatic Sciences 74 8 1243 1250 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Fryer, R.J. Summerbell, K. O’Neill, F.G. A meta-analysis of vertical stratification in demersal trawl gears |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
A meta-analysis is presented of fishing trials that use trawl gear with horizontal separator panels to direct fish into an upper or lower codend. The analysis is applied to eight North Atlantic species: the gadoids cod (Gadus morhua), haddock (Melanogrammus aeglefinus), saithe (Pollachius virens), and whiting (Merlangius merlangus), the flatfish lemon sole (Microstomus kitt) and plaice (Pleuronectes platessa), and monkfish (Lophius piscatorius) and Nephrops (Nephops norvegicus). The proportion of fish that rise above the separator panel decreases as the height of the leading edge of the panel increases for six of the eight species. Only monkfish and Nephrops have no significant dependency on panel height. Cod is the only species for which separation depends on the horizontal distance of the leading edge of the panel from the ground gear, with the proportion of cod going above the panel increasing the farther the panel is from the ground gear. The time of day only affects the separation of plaice, with a greater proportion going above the panel at night than during the day. |
format |
Article in Journal/Newspaper |
author |
Fryer, R.J. Summerbell, K. O’Neill, F.G. |
author_facet |
Fryer, R.J. Summerbell, K. O’Neill, F.G. |
author_sort |
Fryer, R.J. |
title |
A meta-analysis of vertical stratification in demersal trawl gears |
title_short |
A meta-analysis of vertical stratification in demersal trawl gears |
title_full |
A meta-analysis of vertical stratification in demersal trawl gears |
title_fullStr |
A meta-analysis of vertical stratification in demersal trawl gears |
title_full_unstemmed |
A meta-analysis of vertical stratification in demersal trawl gears |
title_sort |
meta-analysis of vertical stratification in demersal trawl gears |
publisher |
Canadian Science Publishing |
publishDate |
2017 |
url |
http://dx.doi.org/10.1139/cjfas-2016-0391 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfas-2016-0391 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfas-2016-0391 |
genre |
Gadus morhua North Atlantic |
genre_facet |
Gadus morhua North Atlantic |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 74, issue 8, page 1243-1250 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/cjfas-2016-0391 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
74 |
container_issue |
8 |
container_start_page |
1243 |
op_container_end_page |
1250 |
_version_ |
1792500018597330944 |