Density-dependent distribution of Atlantic cod (Gadus morhua) into deep waters on the Faroe Plateau
<qd> Steingrund, P., and Ofstad, L. H. 2010. Density-dependent distribution of Atlantic cod ( Gadus morhua ) into deep waters on the Faroe Plateau. – ICES Journal of Marine Science, 67: 102–110. </qd>The natural production of cod on the Faroe Plateau depends on the spatial overlap betwee...
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fthighwire:oai:open-archive.highwire.org:icesjms:67/1/102 2023-05-15T15:27:14+02:00 Density-dependent distribution of Atlantic cod (Gadus morhua) into deep waters on the Faroe Plateau Steingrund, Petur Ofstad, Lise H. 2010-01-01 00:00:00.0 text/html http://icesjms.oxfordjournals.org/cgi/content/short/67/1/102 https://doi.org/10.1093/icesjms/fsp230 en eng Oxford University Press http://icesjms.oxfordjournals.org/cgi/content/short/67/1/102 http://dx.doi.org/10.1093/icesjms/fsp230 Copyright (C) 2010, International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer Articles TEXT 2010 fthighwire https://doi.org/10.1093/icesjms/fsp230 2010-01-22T21:28:46Z <qd> Steingrund, P., and Ofstad, L. H. 2010. Density-dependent distribution of Atlantic cod ( Gadus morhua ) into deep waters on the Faroe Plateau. – ICES Journal of Marine Science, 67: 102–110. </qd>The natural production of cod on the Faroe Plateau depends on the spatial overlap between cod and their prey. However, cod tend to be distributed shallower than the bulk of their prey fish, such as Norway pout and blue whiting. We used commercial and survey catch per unit effort (cpue) data to investigate the distribution of cod in the deep water (150–400 m) on the Faroe Plateau. Cod often move to deep water when they are 4 or 5 years old. The extent of this habitat shift was positively correlated with the total biomass of 3- or 4-year-old cod on the Faroe Plateau, whereas prey densities in the shallow and deep areas, respectively, seemed to have much less influence. Hence, year classes that were a year older than strong year classes were distributed deeper than normal, and vice versa. The cpue in deep water for all ages pooled was strongly correlated with the age 3–6 biomass of cod on the entire Faroe Plateau. These findings are discussed in relation to food utilization and management. Text atlantic cod Gadus morhua HighWire Press (Stanford University) Norway ICES Journal of Marine Science 67 1 102 110 |
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Articles Steingrund, Petur Ofstad, Lise H. Density-dependent distribution of Atlantic cod (Gadus morhua) into deep waters on the Faroe Plateau |
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Articles |
description |
<qd> Steingrund, P., and Ofstad, L. H. 2010. Density-dependent distribution of Atlantic cod ( Gadus morhua ) into deep waters on the Faroe Plateau. – ICES Journal of Marine Science, 67: 102–110. </qd>The natural production of cod on the Faroe Plateau depends on the spatial overlap between cod and their prey. However, cod tend to be distributed shallower than the bulk of their prey fish, such as Norway pout and blue whiting. We used commercial and survey catch per unit effort (cpue) data to investigate the distribution of cod in the deep water (150–400 m) on the Faroe Plateau. Cod often move to deep water when they are 4 or 5 years old. The extent of this habitat shift was positively correlated with the total biomass of 3- or 4-year-old cod on the Faroe Plateau, whereas prey densities in the shallow and deep areas, respectively, seemed to have much less influence. Hence, year classes that were a year older than strong year classes were distributed deeper than normal, and vice versa. The cpue in deep water for all ages pooled was strongly correlated with the age 3–6 biomass of cod on the entire Faroe Plateau. These findings are discussed in relation to food utilization and management. |
format |
Text |
author |
Steingrund, Petur Ofstad, Lise H. |
author_facet |
Steingrund, Petur Ofstad, Lise H. |
author_sort |
Steingrund, Petur |
title |
Density-dependent distribution of Atlantic cod (Gadus morhua) into deep waters on the Faroe Plateau |
title_short |
Density-dependent distribution of Atlantic cod (Gadus morhua) into deep waters on the Faroe Plateau |
title_full |
Density-dependent distribution of Atlantic cod (Gadus morhua) into deep waters on the Faroe Plateau |
title_fullStr |
Density-dependent distribution of Atlantic cod (Gadus morhua) into deep waters on the Faroe Plateau |
title_full_unstemmed |
Density-dependent distribution of Atlantic cod (Gadus morhua) into deep waters on the Faroe Plateau |
title_sort |
density-dependent distribution of atlantic cod (gadus morhua) into deep waters on the faroe plateau |
publisher |
Oxford University Press |
publishDate |
2010 |
url |
http://icesjms.oxfordjournals.org/cgi/content/short/67/1/102 https://doi.org/10.1093/icesjms/fsp230 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_relation |
http://icesjms.oxfordjournals.org/cgi/content/short/67/1/102 http://dx.doi.org/10.1093/icesjms/fsp230 |
op_rights |
Copyright (C) 2010, International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer |
op_doi |
https://doi.org/10.1093/icesjms/fsp230 |
container_title |
ICES Journal of Marine Science |
container_volume |
67 |
container_issue |
1 |
container_start_page |
102 |
op_container_end_page |
110 |
_version_ |
1766357685810233344 |