Cod Year-class Variations and Abundance of Other Commercial Fish in NAFO Divisions 3NO
Possible biological relationships of cod (Gadus morhua) with other important commercial fishes are explored. Cod year-class variations are compared with variations of yellowtail flounder and American plaice spawning biomass, mackerel age 1+ group abundance, and redfish densities. The adult fish biom...
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Centro Oceanográfico de Vigo
1992
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ftieo:oai:repositorio.ieo.es:10508/835 2023-05-15T16:19:06+02:00 Cod Year-class Variations and Abundance of Other Commercial Fish in NAFO Divisions 3NO Paz, X. (Xabier) Larrañeta, M.G. (Manuel Gómez) Atlantic Ocean North Atlantic Northwest Atlantic NAFO 1992 http://hdl.handle.net/10508/835 eng eng Centro Oceanográfico de Vigo http://hdl.handle.net/10508/835 Paz, J., Larrañeta, M.G. 1992. Cod Year-class Variations and Abundance of Other Commercial Fish in NAFO Divisions 3NO. J. Northw. Atl. Fish. Sci., 14: 129-134 Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ CC-BY-NC-ND article 1992 ftieo 2022-07-26T23:46:52Z Possible biological relationships of cod (Gadus morhua) with other important commercial fishes are explored. Cod year-class variations are compared with variations of yellowtail flounder and American plaice spawning biomass, mackerel age 1+ group abundance, and redfish densities. The adult fish biomass of these species are considered as an index of their egg and larval abundances. Possible competitive and predator-prey relationships between the 0-age groups and young individuals of cod and these species are examined through correlation analyses. No significant relationships between cod and redfish and yellowtail flounder were found. It seems that mackerel is a predator on cod larvae. A positive high correlation between spawning American plaice biomass and cod year-class strength was found. High American plaice spawning biomass may promote high cod recruitment through a predator-prey interaction. Alternatively, both species may respond similarly to an environmental signal. Article in Journal/Newspaper Gadus morhua North Atlantic Northwest Atlantic Instituto Español de Oceanografía: e-IEO |
institution |
Open Polar |
collection |
Instituto Español de Oceanografía: e-IEO |
op_collection_id |
ftieo |
language |
English |
description |
Possible biological relationships of cod (Gadus morhua) with other important commercial fishes are explored. Cod year-class variations are compared with variations of yellowtail flounder and American plaice spawning biomass, mackerel age 1+ group abundance, and redfish densities. The adult fish biomass of these species are considered as an index of their egg and larval abundances. Possible competitive and predator-prey relationships between the 0-age groups and young individuals of cod and these species are examined through correlation analyses. No significant relationships between cod and redfish and yellowtail flounder were found. It seems that mackerel is a predator on cod larvae. A positive high correlation between spawning American plaice biomass and cod year-class strength was found. High American plaice spawning biomass may promote high cod recruitment through a predator-prey interaction. Alternatively, both species may respond similarly to an environmental signal. |
format |
Article in Journal/Newspaper |
author |
Paz, X. (Xabier) Larrañeta, M.G. (Manuel Gómez) |
spellingShingle |
Paz, X. (Xabier) Larrañeta, M.G. (Manuel Gómez) Cod Year-class Variations and Abundance of Other Commercial Fish in NAFO Divisions 3NO |
author_facet |
Paz, X. (Xabier) Larrañeta, M.G. (Manuel Gómez) |
author_sort |
Paz, X. (Xabier) |
title |
Cod Year-class Variations and Abundance of Other Commercial Fish in NAFO Divisions 3NO |
title_short |
Cod Year-class Variations and Abundance of Other Commercial Fish in NAFO Divisions 3NO |
title_full |
Cod Year-class Variations and Abundance of Other Commercial Fish in NAFO Divisions 3NO |
title_fullStr |
Cod Year-class Variations and Abundance of Other Commercial Fish in NAFO Divisions 3NO |
title_full_unstemmed |
Cod Year-class Variations and Abundance of Other Commercial Fish in NAFO Divisions 3NO |
title_sort |
cod year-class variations and abundance of other commercial fish in nafo divisions 3no |
publisher |
Centro Oceanográfico de Vigo |
publishDate |
1992 |
url |
http://hdl.handle.net/10508/835 |
op_coverage |
Atlantic Ocean North Atlantic Northwest Atlantic NAFO |
genre |
Gadus morhua North Atlantic Northwest Atlantic |
genre_facet |
Gadus morhua North Atlantic Northwest Atlantic |
op_relation |
http://hdl.handle.net/10508/835 Paz, J., Larrañeta, M.G. 1992. Cod Year-class Variations and Abundance of Other Commercial Fish in NAFO Divisions 3NO. J. Northw. Atl. Fish. Sci., 14: 129-134 |
op_rights |
Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
op_rightsnorm |
CC-BY-NC-ND |
_version_ |
1766005419877072896 |