Recent changes in the feeding of cod (Gadus morhua) off the Flemish Cap, Newfoundland 1989–1993
7 pages, 5 figures, 5 tables. The food and feeding of Flemish Cap cod are described for 5 years based on 3921 stomachs collected in the fishing grounds off the Flemish Cap, Newfoundland in summer 1989–1993. Feeding intensity was high but the prey spectrum was narrow in all years with hyperiids and r...
Published in: | ICES Journal of Marine Science |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Oxford University Press
1996
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Online Access: | http://hdl.handle.net/10261/26097 https://doi.org/10.1006/jmsc.1996.0096 |
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ftcsic:oai:digital.csic.es:10261/26097 2024-02-11T10:01:58+01:00 Recent changes in the feeding of cod (Gadus morhua) off the Flemish Cap, Newfoundland 1989–1993 Casas, J. M. Paz, J. 1996-10 314145 bytes application/pdf http://hdl.handle.net/10261/26097 https://doi.org/10.1006/jmsc.1996.0096 en eng Oxford University Press http://dx.doi.org/10.1006/jmsc.1996.0096 Ices Journal of Marine Science 53(5): 750-756 (1996) 1054-3139 http://hdl.handle.net/10261/26097 doi:10.1006/jmsc.1996.0096 open Atlantic cod Gadus morhua Feeding Redfish Flemish Cap artículo http://purl.org/coar/resource_type/c_6501 1996 ftcsic https://doi.org/10.1006/jmsc.1996.0096 2024-01-16T09:27:37Z 7 pages, 5 figures, 5 tables. The food and feeding of Flemish Cap cod are described for 5 years based on 3921 stomachs collected in the fishing grounds off the Flemish Cap, Newfoundland in summer 1989–1993. Feeding intensity was high but the prey spectrum was narrow in all years with hyperiids and redfish (Sebastes sp.) predominating. Squid and poly-chaetes had a high inter-annual variability. Juvenile cod diet was dominated by crustaceans, mainly hyperiids, and polychaetes, while in adult cod diet the most important prey were fish, mainly redfish. The maximum size of redfish eaten increased with cod size, but prey–predator size relationships showed weak correlation. Cannibalism increased in 1991 (mainly upon 1-year-olds), coinciding with the appearance of a large year class in 1990. In the years 1992 and 1993, a change in the diet was observed involving an increase of hyperiids in the adult cod diet and a decline of redfish. The material used in the present work was collected and analysed as part of research programmes financed by the European Union (n. 11 1 246 E P and AIR1-CT92- 0558). Peer reviewed Article in Journal/Newspaper atlantic cod Gadus morhua Newfoundland Digital.CSIC (Spanish National Research Council) ICES Journal of Marine Science 53 5 750 756 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Atlantic cod Gadus morhua Feeding Redfish Flemish Cap |
spellingShingle |
Atlantic cod Gadus morhua Feeding Redfish Flemish Cap Casas, J. M. Paz, J. Recent changes in the feeding of cod (Gadus morhua) off the Flemish Cap, Newfoundland 1989–1993 |
topic_facet |
Atlantic cod Gadus morhua Feeding Redfish Flemish Cap |
description |
7 pages, 5 figures, 5 tables. The food and feeding of Flemish Cap cod are described for 5 years based on 3921 stomachs collected in the fishing grounds off the Flemish Cap, Newfoundland in summer 1989–1993. Feeding intensity was high but the prey spectrum was narrow in all years with hyperiids and redfish (Sebastes sp.) predominating. Squid and poly-chaetes had a high inter-annual variability. Juvenile cod diet was dominated by crustaceans, mainly hyperiids, and polychaetes, while in adult cod diet the most important prey were fish, mainly redfish. The maximum size of redfish eaten increased with cod size, but prey–predator size relationships showed weak correlation. Cannibalism increased in 1991 (mainly upon 1-year-olds), coinciding with the appearance of a large year class in 1990. In the years 1992 and 1993, a change in the diet was observed involving an increase of hyperiids in the adult cod diet and a decline of redfish. The material used in the present work was collected and analysed as part of research programmes financed by the European Union (n. 11 1 246 E P and AIR1-CT92- 0558). Peer reviewed |
format |
Article in Journal/Newspaper |
author |
Casas, J. M. Paz, J. |
author_facet |
Casas, J. M. Paz, J. |
author_sort |
Casas, J. M. |
title |
Recent changes in the feeding of cod (Gadus morhua) off the Flemish Cap, Newfoundland 1989–1993 |
title_short |
Recent changes in the feeding of cod (Gadus morhua) off the Flemish Cap, Newfoundland 1989–1993 |
title_full |
Recent changes in the feeding of cod (Gadus morhua) off the Flemish Cap, Newfoundland 1989–1993 |
title_fullStr |
Recent changes in the feeding of cod (Gadus morhua) off the Flemish Cap, Newfoundland 1989–1993 |
title_full_unstemmed |
Recent changes in the feeding of cod (Gadus morhua) off the Flemish Cap, Newfoundland 1989–1993 |
title_sort |
recent changes in the feeding of cod (gadus morhua) off the flemish cap, newfoundland 1989–1993 |
publisher |
Oxford University Press |
publishDate |
1996 |
url |
http://hdl.handle.net/10261/26097 https://doi.org/10.1006/jmsc.1996.0096 |
genre |
atlantic cod Gadus morhua Newfoundland |
genre_facet |
atlantic cod Gadus morhua Newfoundland |
op_relation |
http://dx.doi.org/10.1006/jmsc.1996.0096 Ices Journal of Marine Science 53(5): 750-756 (1996) 1054-3139 http://hdl.handle.net/10261/26097 doi:10.1006/jmsc.1996.0096 |
op_rights |
open |
op_doi |
https://doi.org/10.1006/jmsc.1996.0096 |
container_title |
ICES Journal of Marine Science |
container_volume |
53 |
container_issue |
5 |
container_start_page |
750 |
op_container_end_page |
756 |
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1790597869950992384 |