Allozyme and microsatellite DNA markers of toothfish population structure in the Southern Ocean
Toothfish represent a major finfish resource in the Southern Ocean, where there has been a rapid increase in exploitation of the Patagonian toothfish Dissostichus eleginoides. Molecular genetic methods have been applied to address questions relating to stock discrimination in D. eleginoides. Eight m...
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crwiley:10.1111/j.1095-8649.2000.tb02245.x 2024-06-02T08:12:52+00:00 Allozyme and microsatellite DNA markers of toothfish population structure in the Southern Ocean Smith, P. McVeagh, M. 2000 http://dx.doi.org/10.1111/j.1095-8649.2000.tb02245.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.2000.tb02245.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.2000.tb02245.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Biology volume 57, issue sA, page 72-83 ISSN 0022-1112 1095-8649 journal-article 2000 crwiley https://doi.org/10.1111/j.1095-8649.2000.tb02245.x 2024-05-03T11:23:07Z Toothfish represent a major finfish resource in the Southern Ocean, where there has been a rapid increase in exploitation of the Patagonian toothfish Dissostichus eleginoides. Molecular genetic methods have been applied to address questions relating to stock discrimination in D. eleginoides. Eight microsatellite loci were tested in population samples from the Atlantic, Indian, and Pacific Ocean sectors of the Southern Ocean. Some loci were characterised by a large number of alleles, but no alleles were restricted to specific ocean basins. However there was a significant allelic heterogeneity in the total data indicative of population differentiation, and a high level of genetic sub‐division was measured with F ST and R ST . Seven polymorphic allozyme loci revealed no significant heterogeneity among Pacific and Indian Ocean sector samples. The microsatellite DNA heterogeneity suggests that there is restricted gene flow through the Southern Ocean, and that the different fishing grounds may support independent stocks. Article in Journal/Newspaper Patagonian Toothfish Southern Ocean Wiley Online Library Indian Pacific Southern Ocean Journal of Fish Biology 57 sa 72 83 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Toothfish represent a major finfish resource in the Southern Ocean, where there has been a rapid increase in exploitation of the Patagonian toothfish Dissostichus eleginoides. Molecular genetic methods have been applied to address questions relating to stock discrimination in D. eleginoides. Eight microsatellite loci were tested in population samples from the Atlantic, Indian, and Pacific Ocean sectors of the Southern Ocean. Some loci were characterised by a large number of alleles, but no alleles were restricted to specific ocean basins. However there was a significant allelic heterogeneity in the total data indicative of population differentiation, and a high level of genetic sub‐division was measured with F ST and R ST . Seven polymorphic allozyme loci revealed no significant heterogeneity among Pacific and Indian Ocean sector samples. The microsatellite DNA heterogeneity suggests that there is restricted gene flow through the Southern Ocean, and that the different fishing grounds may support independent stocks. |
format |
Article in Journal/Newspaper |
author |
Smith, P. McVeagh, M. |
spellingShingle |
Smith, P. McVeagh, M. Allozyme and microsatellite DNA markers of toothfish population structure in the Southern Ocean |
author_facet |
Smith, P. McVeagh, M. |
author_sort |
Smith, P. |
title |
Allozyme and microsatellite DNA markers of toothfish population structure in the Southern Ocean |
title_short |
Allozyme and microsatellite DNA markers of toothfish population structure in the Southern Ocean |
title_full |
Allozyme and microsatellite DNA markers of toothfish population structure in the Southern Ocean |
title_fullStr |
Allozyme and microsatellite DNA markers of toothfish population structure in the Southern Ocean |
title_full_unstemmed |
Allozyme and microsatellite DNA markers of toothfish population structure in the Southern Ocean |
title_sort |
allozyme and microsatellite dna markers of toothfish population structure in the southern ocean |
publisher |
Wiley |
publishDate |
2000 |
url |
http://dx.doi.org/10.1111/j.1095-8649.2000.tb02245.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.2000.tb02245.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.2000.tb02245.x |
geographic |
Indian Pacific Southern Ocean |
geographic_facet |
Indian Pacific Southern Ocean |
genre |
Patagonian Toothfish Southern Ocean |
genre_facet |
Patagonian Toothfish Southern Ocean |
op_source |
Journal of Fish Biology volume 57, issue sA, page 72-83 ISSN 0022-1112 1095-8649 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1095-8649.2000.tb02245.x |
container_title |
Journal of Fish Biology |
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57 |
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sa |
container_start_page |
72 |
op_container_end_page |
83 |
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1800759433268035584 |