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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ftunivhelsihelda:oai:helda.helsinki.fi:10138/329670 2024-01-07T09:42:14+01:00 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 Department of Agricultural Sciences 2021-05-06T05:59:01Z 22 application/pdf http://hdl.handle.net/10138/329670 eng eng PUBLIC LIBRARY OF SCIENCE 10.1371/journal.pone.0247435 Koljonen , M-L , Masuda , M , Kallio-Nyberg , I , Koskiniemi , J & Saloniemi , I 2021 , ' Large inter-stock differences in catch size-at-age of mature Atlantic salmon observed by using genetic individual origin assignment from catch data ' , PLoS One , vol. 16 , no. 4 , 0247435 . https://doi.org/10.1371/journal.pone.0247435 4cebb2b2-6cf7-4a4a-80b5-0efd3f35896d http://hdl.handle.net/10138/329670 000637879100038 cc_public_domain openAccess info:eu-repo/semantics/openAccess 1184 Genetics developmental biology physiology Article publishedVersion 2021 ftunivhelsihelda 2023-12-14T00:07:14Z 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. Peer reviewed Article in Journal/Newspaper Atlantic salmon Salmo salar HELDA – University of Helsinki Open Repository PLOS ONE 16 4 e0247435 |
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HELDA – University of Helsinki Open Repository |
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ftunivhelsihelda |
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English |
topic |
1184 Genetics developmental biology physiology |
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1184 Genetics developmental biology physiology 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 |
topic_facet |
1184 Genetics developmental biology physiology |
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. Peer reviewed |
author2 |
Department of Agricultural Sciences |
format |
Article in Journal/Newspaper |
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://hdl.handle.net/10138/329670 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
10.1371/journal.pone.0247435 Koljonen , M-L , Masuda , M , Kallio-Nyberg , I , Koskiniemi , J & Saloniemi , I 2021 , ' Large inter-stock differences in catch size-at-age of mature Atlantic salmon observed by using genetic individual origin assignment from catch data ' , PLoS One , vol. 16 , no. 4 , 0247435 . https://doi.org/10.1371/journal.pone.0247435 4cebb2b2-6cf7-4a4a-80b5-0efd3f35896d http://hdl.handle.net/10138/329670 000637879100038 |
op_rights |
cc_public_domain openAccess info:eu-repo/semantics/openAccess |
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PLOS ONE |
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16 |
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4 |
container_start_page |
e0247435 |
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1787423180196937728 |