Large inter-stock differences in catch size-at-age of mature Atlantic salmon observed by using genetic individual origin assignment from catch data
Genetic individual assignment of river stock of origin of mixed stock catch fish offers a tool to analyze size differences among river stocks. Data on the genetically identified river stock of origin of individual fish from commercial mixed stock catches were used to compare the catch size-at-age of...
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ftpubmed:oai:pubmedcentral.nih.gov:8023481 2023-05-15T15:32:02+02:00 Large inter-stock differences in catch size-at-age of mature Atlantic salmon observed by using genetic individual origin assignment from catch data Koljonen, Marja-Liisa Masuda, Michele Kallio-Nyberg, Irma Koskiniemi, Jarmo Saloniemi, Irma 2021-04-06 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8023481/ http://www.ncbi.nlm.nih.gov/pubmed/33822799 https://doi.org/10.1371/journal.pone.0247435 en eng Public Library of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8023481/ http://www.ncbi.nlm.nih.gov/pubmed/33822799 http://dx.doi.org/10.1371/journal.pone.0247435 https://creativecommons.org/publicdomain/zero/1.0/ This is an open access article, free of all copyright, and may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose. The work is made available under the Creative Commons CC0 (https://creativecommons.org/publicdomain/zero/1.0/) public domain dedication. CC0 PDM PLoS One Research Article Text 2021 ftpubmed https://doi.org/10.1371/journal.pone.0247435 2021-04-18T00:27:19Z Genetic individual assignment of river stock of origin of mixed stock catch fish offers a tool to analyze size differences among river stocks. Data on the genetically identified river stock of origin of individual fish from commercial mixed stock catches were used to compare the catch size-at-age of mature Atlantic salmon catch fish (Salmo salar) from different rivers in the Baltic Sea. In this application of genetic mixed stock modeling, individual assignments of the river stock of origin were analyzed together with length- and weight-at-age data for individual catch fish. The use of four genetic stock identification based methods was compared for defining the length distributions of caught mature salmon in different river stocks. The catch data included information on maturing salmon in the northern Baltic Sea over the years 2000–2013. DNA microsatellite data on 17 loci and information on the smoltification age were used to assign spawners to their stock of origin. All of the compared methods for using probabilistic stock of origin data in our case yielded very similar estimates of the final mean length distributions of the stocks. The Bayesian mixture model yielded slightly more conservative estimates than the direct probability method, threshold method, or the modified probability method. The catch size between spawners of a same sex and age from river stocks differed significantly and the differences were large. The mean catch weight of 1-sea-winter old mature males in different rivers varied from 1.9 kg to 2.9 kg, from 5.1 kg to 7.5 kg for 2-sea-winter old males, from 5.0 kg to 7.2 kg for 2-sea-winter old females, and from 8.2 kg to 10.8 kg for 3-sea-winter-old females. The mean size of caught wild salmon spawners in each year-class was on average smaller than that of the hatchery-reared and sea ranched stocks. Text Atlantic salmon Salmo salar PubMed Central (PMC) PLOS ONE 16 4 e0247435 |
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Research Article Koljonen, Marja-Liisa Masuda, Michele Kallio-Nyberg, Irma Koskiniemi, Jarmo Saloniemi, Irma Large inter-stock differences in catch size-at-age of mature Atlantic salmon observed by using genetic individual origin assignment from catch data |
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Research Article |
description |
Genetic individual assignment of river stock of origin of mixed stock catch fish offers a tool to analyze size differences among river stocks. Data on the genetically identified river stock of origin of individual fish from commercial mixed stock catches were used to compare the catch size-at-age of mature Atlantic salmon catch fish (Salmo salar) from different rivers in the Baltic Sea. In this application of genetic mixed stock modeling, individual assignments of the river stock of origin were analyzed together with length- and weight-at-age data for individual catch fish. The use of four genetic stock identification based methods was compared for defining the length distributions of caught mature salmon in different river stocks. The catch data included information on maturing salmon in the northern Baltic Sea over the years 2000–2013. DNA microsatellite data on 17 loci and information on the smoltification age were used to assign spawners to their stock of origin. All of the compared methods for using probabilistic stock of origin data in our case yielded very similar estimates of the final mean length distributions of the stocks. The Bayesian mixture model yielded slightly more conservative estimates than the direct probability method, threshold method, or the modified probability method. The catch size between spawners of a same sex and age from river stocks differed significantly and the differences were large. The mean catch weight of 1-sea-winter old mature males in different rivers varied from 1.9 kg to 2.9 kg, from 5.1 kg to 7.5 kg for 2-sea-winter old males, from 5.0 kg to 7.2 kg for 2-sea-winter old females, and from 8.2 kg to 10.8 kg for 3-sea-winter-old females. The mean size of caught wild salmon spawners in each year-class was on average smaller than that of the hatchery-reared and sea ranched stocks. |
format |
Text |
author |
Koljonen, Marja-Liisa Masuda, Michele Kallio-Nyberg, Irma Koskiniemi, Jarmo Saloniemi, Irma |
author_facet |
Koljonen, Marja-Liisa Masuda, Michele Kallio-Nyberg, Irma Koskiniemi, Jarmo Saloniemi, Irma |
author_sort |
Koljonen, Marja-Liisa |
title |
Large inter-stock differences in catch size-at-age of mature Atlantic salmon observed by using genetic individual origin assignment from catch data |
title_short |
Large inter-stock differences in catch size-at-age of mature Atlantic salmon observed by using genetic individual origin assignment from catch data |
title_full |
Large inter-stock differences in catch size-at-age of mature Atlantic salmon observed by using genetic individual origin assignment from catch data |
title_fullStr |
Large inter-stock differences in catch size-at-age of mature Atlantic salmon observed by using genetic individual origin assignment from catch data |
title_full_unstemmed |
Large inter-stock differences in catch size-at-age of mature Atlantic salmon observed by using genetic individual origin assignment from catch data |
title_sort |
large inter-stock differences in catch size-at-age of mature atlantic salmon observed by using genetic individual origin assignment from catch data |
publisher |
Public Library of Science |
publishDate |
2021 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8023481/ http://www.ncbi.nlm.nih.gov/pubmed/33822799 https://doi.org/10.1371/journal.pone.0247435 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
PLoS One |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8023481/ http://www.ncbi.nlm.nih.gov/pubmed/33822799 http://dx.doi.org/10.1371/journal.pone.0247435 |
op_rights |
https://creativecommons.org/publicdomain/zero/1.0/ This is an open access article, free of all copyright, and may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose. The work is made available under the Creative Commons CC0 (https://creativecommons.org/publicdomain/zero/1.0/) public domain dedication. |
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CC0 PDM |
op_doi |
https://doi.org/10.1371/journal.pone.0247435 |
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PLOS ONE |
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16 |
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4 |
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e0247435 |
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