Effect of recruitment, individual weights, fishing effort, and fluctuating longline catchability on the catch of Faroe Plateau cod (Gadus morhua L.) in the period 1989-1999 ...
The catch of Faroe Plateau cod fluctuated more in the 1990s than during almost any time in the previous 90 years, and one main aim of this study was to investigate whether the behaviour of cod was anomalous (e.g. large-scale migrations) during these years. It was found that the behaviour o f cod was...
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ICES MSS Vol.219 - Hydrobiological variability in the ICES Area, 1990-1999
2023
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Online Access: | https://dx.doi.org/10.17895/ices.pub.19271948 https://ices-library.figshare.com/articles/report/Effect_of_recruitment_individual_weights_fishing_effort_and_fluctuating_longline_catchability_on_the_catch_of_Faroe_Plateau_cod_Gadus_morhua_L_in_the_period_1989-1999/19271948 |
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ftdatacite:10.17895/ices.pub.19271948 2023-06-11T04:11:37+02:00 Effect of recruitment, individual weights, fishing effort, and fluctuating longline catchability on the catch of Faroe Plateau cod (Gadus morhua L.) in the period 1989-1999 ... Steingrund, Petur Ofstad, Lise Helen Olsen, Dagunn Hilda 2023 https://dx.doi.org/10.17895/ices.pub.19271948 https://ices-library.figshare.com/articles/report/Effect_of_recruitment_individual_weights_fishing_effort_and_fluctuating_longline_catchability_on_the_catch_of_Faroe_Plateau_cod_Gadus_morhua_L_in_the_period_1989-1999/19271948 unknown ICES MSS Vol.219 - Hydrobiological variability in the ICES Area, 1990-1999 ICES Custom Licence https://www.ices.dk/Pages/library_policies.aspx Fisheries and aquaculture Faroes ICES Ecoregion Other Report report 2023 ftdatacite https://doi.org/10.17895/ices.pub.19271948 2023-06-01T11:56:51Z The catch of Faroe Plateau cod fluctuated more in the 1990s than during almost any time in the previous 90 years, and one main aim of this study was to investigate whether the behaviour of cod was anomalous (e.g. large-scale migrations) during these years. It was found that the behaviour o f cod was normal in the 1990s (except possibly in 1996) and that variations in recruitment, individual fish weights, fishing effort, and catchability (catch per unit effort divided by stock abundance) were the most important factors that determined the catch of cod. The fluctuating catchability especially applied to longlines where a negative relationship between catchability and individual growth rate of cod was found, indicating that cod preferred longline baits when the abundance of natural food organisms, was scarce. The study also shows that cod production was highly correlated with primary production. This indicates that primary production was the driving force behind recruitment and individual growth and hence the ... Report Faroes Gadus morhua DataCite Metadata Store (German National Library of Science and Technology) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Fisheries and aquaculture Faroes ICES Ecoregion |
spellingShingle |
Fisheries and aquaculture Faroes ICES Ecoregion Steingrund, Petur Ofstad, Lise Helen Olsen, Dagunn Hilda Effect of recruitment, individual weights, fishing effort, and fluctuating longline catchability on the catch of Faroe Plateau cod (Gadus morhua L.) in the period 1989-1999 ... |
topic_facet |
Fisheries and aquaculture Faroes ICES Ecoregion |
description |
The catch of Faroe Plateau cod fluctuated more in the 1990s than during almost any time in the previous 90 years, and one main aim of this study was to investigate whether the behaviour of cod was anomalous (e.g. large-scale migrations) during these years. It was found that the behaviour o f cod was normal in the 1990s (except possibly in 1996) and that variations in recruitment, individual fish weights, fishing effort, and catchability (catch per unit effort divided by stock abundance) were the most important factors that determined the catch of cod. The fluctuating catchability especially applied to longlines where a negative relationship between catchability and individual growth rate of cod was found, indicating that cod preferred longline baits when the abundance of natural food organisms, was scarce. The study also shows that cod production was highly correlated with primary production. This indicates that primary production was the driving force behind recruitment and individual growth and hence the ... |
format |
Report |
author |
Steingrund, Petur Ofstad, Lise Helen Olsen, Dagunn Hilda |
author_facet |
Steingrund, Petur Ofstad, Lise Helen Olsen, Dagunn Hilda |
author_sort |
Steingrund, Petur |
title |
Effect of recruitment, individual weights, fishing effort, and fluctuating longline catchability on the catch of Faroe Plateau cod (Gadus morhua L.) in the period 1989-1999 ... |
title_short |
Effect of recruitment, individual weights, fishing effort, and fluctuating longline catchability on the catch of Faroe Plateau cod (Gadus morhua L.) in the period 1989-1999 ... |
title_full |
Effect of recruitment, individual weights, fishing effort, and fluctuating longline catchability on the catch of Faroe Plateau cod (Gadus morhua L.) in the period 1989-1999 ... |
title_fullStr |
Effect of recruitment, individual weights, fishing effort, and fluctuating longline catchability on the catch of Faroe Plateau cod (Gadus morhua L.) in the period 1989-1999 ... |
title_full_unstemmed |
Effect of recruitment, individual weights, fishing effort, and fluctuating longline catchability on the catch of Faroe Plateau cod (Gadus morhua L.) in the period 1989-1999 ... |
title_sort |
effect of recruitment, individual weights, fishing effort, and fluctuating longline catchability on the catch of faroe plateau cod (gadus morhua l.) in the period 1989-1999 ... |
publisher |
ICES MSS Vol.219 - Hydrobiological variability in the ICES Area, 1990-1999 |
publishDate |
2023 |
url |
https://dx.doi.org/10.17895/ices.pub.19271948 https://ices-library.figshare.com/articles/report/Effect_of_recruitment_individual_weights_fishing_effort_and_fluctuating_longline_catchability_on_the_catch_of_Faroe_Plateau_cod_Gadus_morhua_L_in_the_period_1989-1999/19271948 |
genre |
Faroes Gadus morhua |
genre_facet |
Faroes Gadus morhua |
op_rights |
ICES Custom Licence https://www.ices.dk/Pages/library_policies.aspx |
op_doi |
https://doi.org/10.17895/ices.pub.19271948 |
_version_ |
1768386805828157440 |