Fishing-induced early reproduction at the cost of growth in the Baltic cod Gadus morhua? ...
No abstracts are to be cited without prior reference to the author.Increased adult mortality is predicted to decrease maturation age and increase reproductive effort at the cost of somatic growth. Using Swedish survey data we assessed whether the Baltic cod (Gadus morhua) stocks (ICES subdivisions 2...
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ASC 2006 - Theme session H
2024
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ftdatacite:10.17895/ices.pub.25258858 2024-03-31T07:52:49+00:00 Fishing-induced early reproduction at the cost of growth in the Baltic cod Gadus morhua? ... Vainikka, Anssi Gårdmark, A. Bland, B. Hjelm, J. 2024 https://dx.doi.org/10.17895/ices.pub.25258858 https://ices-library.figshare.com/articles/conference_contribution/Fishing-induced_early_reproduction_at_the_cost_of_growth_in_the_Baltic_cod_Gadus_morhua_/25258858 unknown ASC 2006 - Theme session H https://ices-library.figshare.com/ICES-ASC-2006/groups ICES Custom Licence https://www.ices.dk/Pages/library_policies.aspx Fisheries and aquaculture Pressures, impacts, conservation, and management Conference contribution article CreativeWork Other 2024 ftdatacite https://doi.org/10.17895/ices.pub.25258858 2024-03-04T14:11:39Z No abstracts are to be cited without prior reference to the author.Increased adult mortality is predicted to decrease maturation age and increase reproductive effort at the cost of somatic growth. Using Swedish survey data we assessed whether the Baltic cod (Gadus morhua) stocks (ICES subdivisions 22-24 and 25-30) have undergone evolutionary changes in maturation reaction norm by age and length during years 1989 - 2003. Both male and female cod from the Baltic Proper showed decreasing trends in length at age and condition in several ages but such changes were not detected in subdivisions 22-24. Female cod from the Baltic Proper showed linear trend towards decreased length at 50% probability of maturing at age at several ages but there were no statistically significant trends in males. In the western population, detected trends were not unambiguous. Cod males in the Baltic Proper had a reaction norm for earlier maturation than females, but in the Western Baltic such difference did not exist between sexes. ... Conference Object Gadus morhua DataCite Metadata Store (German National Library of Science and Technology) |
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Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
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unknown |
topic |
Fisheries and aquaculture Pressures, impacts, conservation, and management |
spellingShingle |
Fisheries and aquaculture Pressures, impacts, conservation, and management Vainikka, Anssi Gårdmark, A. Bland, B. Hjelm, J. Fishing-induced early reproduction at the cost of growth in the Baltic cod Gadus morhua? ... |
topic_facet |
Fisheries and aquaculture Pressures, impacts, conservation, and management |
description |
No abstracts are to be cited without prior reference to the author.Increased adult mortality is predicted to decrease maturation age and increase reproductive effort at the cost of somatic growth. Using Swedish survey data we assessed whether the Baltic cod (Gadus morhua) stocks (ICES subdivisions 22-24 and 25-30) have undergone evolutionary changes in maturation reaction norm by age and length during years 1989 - 2003. Both male and female cod from the Baltic Proper showed decreasing trends in length at age and condition in several ages but such changes were not detected in subdivisions 22-24. Female cod from the Baltic Proper showed linear trend towards decreased length at 50% probability of maturing at age at several ages but there were no statistically significant trends in males. In the western population, detected trends were not unambiguous. Cod males in the Baltic Proper had a reaction norm for earlier maturation than females, but in the Western Baltic such difference did not exist between sexes. ... |
format |
Conference Object |
author |
Vainikka, Anssi Gårdmark, A. Bland, B. Hjelm, J. |
author_facet |
Vainikka, Anssi Gårdmark, A. Bland, B. Hjelm, J. |
author_sort |
Vainikka, Anssi |
title |
Fishing-induced early reproduction at the cost of growth in the Baltic cod Gadus morhua? ... |
title_short |
Fishing-induced early reproduction at the cost of growth in the Baltic cod Gadus morhua? ... |
title_full |
Fishing-induced early reproduction at the cost of growth in the Baltic cod Gadus morhua? ... |
title_fullStr |
Fishing-induced early reproduction at the cost of growth in the Baltic cod Gadus morhua? ... |
title_full_unstemmed |
Fishing-induced early reproduction at the cost of growth in the Baltic cod Gadus morhua? ... |
title_sort |
fishing-induced early reproduction at the cost of growth in the baltic cod gadus morhua? ... |
publisher |
ASC 2006 - Theme session H |
publishDate |
2024 |
url |
https://dx.doi.org/10.17895/ices.pub.25258858 https://ices-library.figshare.com/articles/conference_contribution/Fishing-induced_early_reproduction_at_the_cost_of_growth_in_the_Baltic_cod_Gadus_morhua_/25258858 |
genre |
Gadus morhua |
genre_facet |
Gadus morhua |
op_relation |
https://ices-library.figshare.com/ICES-ASC-2006/groups |
op_rights |
ICES Custom Licence https://www.ices.dk/Pages/library_policies.aspx |
op_doi |
https://doi.org/10.17895/ices.pub.25258858 |
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1795032185936281600 |