Density-dependent distribution of Atlantic cod (Gadus morhua) into deep waters on the Faroe Plateau
Abstract 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. The natural production of cod on the Faroe Plateau depends on the spatial overlap between cod and their...
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Online Access: | http://dx.doi.org/10.1093/icesjms/fsp230 http://academic.oup.com/icesjms/article-pdf/67/1/102/29136050/fsp230.pdf |
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croxfordunivpr:10.1093/icesjms/fsp230 2023-05-15T15:27:17+02:00 Density-dependent distribution of Atlantic cod (Gadus morhua) into deep waters on the Faroe Plateau Steingrund, Petur Ofstad, Lise H. 2009 http://dx.doi.org/10.1093/icesjms/fsp230 http://academic.oup.com/icesjms/article-pdf/67/1/102/29136050/fsp230.pdf en eng Oxford University Press (OUP) ICES Journal of Marine Science volume 67, issue 1, page 102-110 ISSN 1095-9289 1054-3139 Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2009 croxfordunivpr https://doi.org/10.1093/icesjms/fsp230 2022-12-29T15:38:24Z Abstract 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. 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. Article in Journal/Newspaper atlantic cod Gadus morhua Oxford University Press (via Crossref) Norway ICES Journal of Marine Science 67 1 102 110 |
institution |
Open Polar |
collection |
Oxford University Press (via Crossref) |
op_collection_id |
croxfordunivpr |
language |
English |
topic |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography Steingrund, Petur Ofstad, Lise H. Density-dependent distribution of Atlantic cod (Gadus morhua) into deep waters on the Faroe Plateau |
topic_facet |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract 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. 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 |
Article in Journal/Newspaper |
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 (OUP) |
publishDate |
2009 |
url |
http://dx.doi.org/10.1093/icesjms/fsp230 http://academic.oup.com/icesjms/article-pdf/67/1/102/29136050/fsp230.pdf |
geographic |
Norway |
geographic_facet |
Norway |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
ICES Journal of Marine Science volume 67, issue 1, page 102-110 ISSN 1095-9289 1054-3139 |
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_ |
1766357732982521856 |