Feeding hotspots for four northwest Atlantic groundfish species
<qd> Methratta, E.T., and Link, J.S. 2012. Feeding hotspots for four northwest Atlantic groundfish species. — ICES Journal of Marine Science, 69: 1710–1721. </qd>We used predator distribution and stomach content data to estimate the annual per capita rate of consumption for four represen...
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fthighwire:oai:open-archive.highwire.org:icesjms:69/10/1710 2023-05-15T17:45:32+02:00 Feeding hotspots for four northwest Atlantic groundfish species Methratta, Elizabeth T. Link, Jason S. 2012-12-01 00:00:00.0 text/html http://icesjms.oxfordjournals.org/cgi/content/short/69/10/1710 https://doi.org/10.1093/icesjms/fss124 en eng Oxford University Press http://icesjms.oxfordjournals.org/cgi/content/short/69/10/1710 http://dx.doi.org/10.1093/icesjms/fss124 Copyright (C) 2012, International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer Articles TEXT 2012 fthighwire https://doi.org/10.1093/icesjms/fss124 2012-10-19T20:54:22Z <qd> Methratta, E.T., and Link, J.S. 2012. Feeding hotspots for four northwest Atlantic groundfish species. — ICES Journal of Marine Science, 69: 1710–1721. </qd>We used predator distribution and stomach content data to estimate the annual per capita rate of consumption for four representative predator species from the northwestern Atlantic Ocean, and considered how consumption is influenced by depth, bottom salinity, sediment grain size, location variables, and species-specific diet components. We found that geographic variables and species-specific prey resources were significantly associated with consumption rates, a pattern consistent with predator-prey theory. Prey categories comprised of fish were particularly important for a more mobile predator (silver hake Merluccius bilinearis) , whereas benthic invertebrate prey were consistently important for a more sedentary predator (little skate Raja erinacea ). Hotspots in consumption rates that overlap with particular prey resources were highlighted by the significance of location variables (longitude) for winter flounder Pseudopleuronectes americanus , silver hake, little skate, and sea raven Hemitripterus americanu s. Depth was an important explanatory factor for consumption by little skate, but the explanatory value of abiotic habitat factors was low for the other three species. Greater emphasis on species-specific food habits, migratory patterns, and ecological interactions at the synoptic scales relevant to fisheries is needed for fisheries management. Text Northwest Atlantic HighWire Press (Stanford University) Hake ENVELOPE(15.612,15.612,66.797,66.797) ICES Journal of Marine Science 69 10 1710 1721 |
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English |
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Articles Methratta, Elizabeth T. Link, Jason S. Feeding hotspots for four northwest Atlantic groundfish species |
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Articles |
description |
<qd> Methratta, E.T., and Link, J.S. 2012. Feeding hotspots for four northwest Atlantic groundfish species. — ICES Journal of Marine Science, 69: 1710–1721. </qd>We used predator distribution and stomach content data to estimate the annual per capita rate of consumption for four representative predator species from the northwestern Atlantic Ocean, and considered how consumption is influenced by depth, bottom salinity, sediment grain size, location variables, and species-specific diet components. We found that geographic variables and species-specific prey resources were significantly associated with consumption rates, a pattern consistent with predator-prey theory. Prey categories comprised of fish were particularly important for a more mobile predator (silver hake Merluccius bilinearis) , whereas benthic invertebrate prey were consistently important for a more sedentary predator (little skate Raja erinacea ). Hotspots in consumption rates that overlap with particular prey resources were highlighted by the significance of location variables (longitude) for winter flounder Pseudopleuronectes americanus , silver hake, little skate, and sea raven Hemitripterus americanu s. Depth was an important explanatory factor for consumption by little skate, but the explanatory value of abiotic habitat factors was low for the other three species. Greater emphasis on species-specific food habits, migratory patterns, and ecological interactions at the synoptic scales relevant to fisheries is needed for fisheries management. |
format |
Text |
author |
Methratta, Elizabeth T. Link, Jason S. |
author_facet |
Methratta, Elizabeth T. Link, Jason S. |
author_sort |
Methratta, Elizabeth T. |
title |
Feeding hotspots for four northwest Atlantic groundfish species |
title_short |
Feeding hotspots for four northwest Atlantic groundfish species |
title_full |
Feeding hotspots for four northwest Atlantic groundfish species |
title_fullStr |
Feeding hotspots for four northwest Atlantic groundfish species |
title_full_unstemmed |
Feeding hotspots for four northwest Atlantic groundfish species |
title_sort |
feeding hotspots for four northwest atlantic groundfish species |
publisher |
Oxford University Press |
publishDate |
2012 |
url |
http://icesjms.oxfordjournals.org/cgi/content/short/69/10/1710 https://doi.org/10.1093/icesjms/fss124 |
long_lat |
ENVELOPE(15.612,15.612,66.797,66.797) |
geographic |
Hake |
geographic_facet |
Hake |
genre |
Northwest Atlantic |
genre_facet |
Northwest Atlantic |
op_relation |
http://icesjms.oxfordjournals.org/cgi/content/short/69/10/1710 http://dx.doi.org/10.1093/icesjms/fss124 |
op_rights |
Copyright (C) 2012, International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer |
op_doi |
https://doi.org/10.1093/icesjms/fss124 |
container_title |
ICES Journal of Marine Science |
container_volume |
69 |
container_issue |
10 |
container_start_page |
1710 |
op_container_end_page |
1721 |
_version_ |
1766148611951820800 |