Stock identification of Atlantic cod in US waters using microsatellite and single nucleotide polymorphism DNA analyses
Management of Atlantic cod Gadus morhua in U.S. waters is based on a two-stock model composed of stocks from (1) the Gulf of Maine (GOM) and (2) Georges Bank (GB) and areas south; however, evidence suggests a more fine-scale structuring. We used microsatellite and single nucleotide polymorphism (SNP...
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ftuninhampshire:oai:scholars.unh.edu:nhaes-1198 2024-09-15T17:55:20+00:00 Stock identification of Atlantic cod in US waters using microsatellite and single nucleotide polymorphism DNA analyses Wirgin, Isaac Kovach, Adrienne I. Maceda, Lorraine Roy, Nirmal K. Waldman, John Berlinsky, David L. 2007-01-01T08:00:00Z https://scholars.unh.edu/nhaes/199 https://doi.org/10.1577/T06-068.1 unknown University of New Hampshire Scholars' Repository https://scholars.unh.edu/nhaes/199 http://dx.doi.org/10.1577/T06-068.1 ©American Fisheries Society 2007 New Hampshire Agricultural Experiment Station Publications Scientific Contribution Number 2322 Aquaculture and Fisheries text 2007 ftuninhampshire https://doi.org/10.1577/T06-068.1 2024-08-02T04:50:30Z Management of Atlantic cod Gadus morhua in U.S. waters is based on a two-stock model composed of stocks from (1) the Gulf of Maine (GOM) and (2) Georges Bank (GB) and areas south; however, evidence suggests a more fine-scale structuring. We used microsatellite and single nucleotide polymorphism (SNP) analyses to investigate the stock structure of Atlantic cod in U.S. waters. In year 1, we analyzed microsatellite loci in larvae from GB, age-0 juveniles from multiple locations in the GOM, and adults of unknown maturity from GB, Jeffreys Ledge, and the Great South Channel (GSC). In year 2, Atlantic cod collected from spawning aggregations in Ipswich Bay in the spring and at GB, Stellwagen Bank, Chatham, and Ipswich Bay in the winter, along with adults of unknown maturity from Long Island, New York, were surveyed at a modified battery of microsatellites and three SNPs. In year 1, we saw no significant differences in allelic frequencies between our composite sample of adult and juvenile cod from the GOM and that from GB nor between the collections from the GSC and any other site. However, a composite sample of juveniles from Massachusetts Bay was significantly different from the GB collection and juveniles from Maine. In year 2, we found highly significant differences in allelic frequencies between Atlantic cod collections from the GOM and GB. The spring collection from Ipswich Bay was highly distinct from the collection from GB and all other sites, including the winter-spawning Ipswich Bay collection. The Long Island sample was genetically distinct from the GB and the spring collections from Ipswich Bay, but not from other collections. Our study indicates that there is genetic heterogeneity of stocks in U.S. waters, but its structure is complex and to better understand it many more spatially and temporally separated samples must be characterized. Text atlantic cod Gadus morhua University of New Hampshire: Scholars Repository Transactions of the American Fisheries Society 136 2 375 391 |
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University of New Hampshire: Scholars Repository |
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ftuninhampshire |
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unknown |
topic |
Scientific Contribution Number 2322 Aquaculture and Fisheries |
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Scientific Contribution Number 2322 Aquaculture and Fisheries Wirgin, Isaac Kovach, Adrienne I. Maceda, Lorraine Roy, Nirmal K. Waldman, John Berlinsky, David L. Stock identification of Atlantic cod in US waters using microsatellite and single nucleotide polymorphism DNA analyses |
topic_facet |
Scientific Contribution Number 2322 Aquaculture and Fisheries |
description |
Management of Atlantic cod Gadus morhua in U.S. waters is based on a two-stock model composed of stocks from (1) the Gulf of Maine (GOM) and (2) Georges Bank (GB) and areas south; however, evidence suggests a more fine-scale structuring. We used microsatellite and single nucleotide polymorphism (SNP) analyses to investigate the stock structure of Atlantic cod in U.S. waters. In year 1, we analyzed microsatellite loci in larvae from GB, age-0 juveniles from multiple locations in the GOM, and adults of unknown maturity from GB, Jeffreys Ledge, and the Great South Channel (GSC). In year 2, Atlantic cod collected from spawning aggregations in Ipswich Bay in the spring and at GB, Stellwagen Bank, Chatham, and Ipswich Bay in the winter, along with adults of unknown maturity from Long Island, New York, were surveyed at a modified battery of microsatellites and three SNPs. In year 1, we saw no significant differences in allelic frequencies between our composite sample of adult and juvenile cod from the GOM and that from GB nor between the collections from the GSC and any other site. However, a composite sample of juveniles from Massachusetts Bay was significantly different from the GB collection and juveniles from Maine. In year 2, we found highly significant differences in allelic frequencies between Atlantic cod collections from the GOM and GB. The spring collection from Ipswich Bay was highly distinct from the collection from GB and all other sites, including the winter-spawning Ipswich Bay collection. The Long Island sample was genetically distinct from the GB and the spring collections from Ipswich Bay, but not from other collections. Our study indicates that there is genetic heterogeneity of stocks in U.S. waters, but its structure is complex and to better understand it many more spatially and temporally separated samples must be characterized. |
format |
Text |
author |
Wirgin, Isaac Kovach, Adrienne I. Maceda, Lorraine Roy, Nirmal K. Waldman, John Berlinsky, David L. |
author_facet |
Wirgin, Isaac Kovach, Adrienne I. Maceda, Lorraine Roy, Nirmal K. Waldman, John Berlinsky, David L. |
author_sort |
Wirgin, Isaac |
title |
Stock identification of Atlantic cod in US waters using microsatellite and single nucleotide polymorphism DNA analyses |
title_short |
Stock identification of Atlantic cod in US waters using microsatellite and single nucleotide polymorphism DNA analyses |
title_full |
Stock identification of Atlantic cod in US waters using microsatellite and single nucleotide polymorphism DNA analyses |
title_fullStr |
Stock identification of Atlantic cod in US waters using microsatellite and single nucleotide polymorphism DNA analyses |
title_full_unstemmed |
Stock identification of Atlantic cod in US waters using microsatellite and single nucleotide polymorphism DNA analyses |
title_sort |
stock identification of atlantic cod in us waters using microsatellite and single nucleotide polymorphism dna analyses |
publisher |
University of New Hampshire Scholars' Repository |
publishDate |
2007 |
url |
https://scholars.unh.edu/nhaes/199 https://doi.org/10.1577/T06-068.1 |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
New Hampshire Agricultural Experiment Station Publications |
op_relation |
https://scholars.unh.edu/nhaes/199 http://dx.doi.org/10.1577/T06-068.1 |
op_rights |
©American Fisheries Society 2007 |
op_doi |
https://doi.org/10.1577/T06-068.1 |
container_title |
Transactions of the American Fisheries Society |
container_volume |
136 |
container_issue |
2 |
container_start_page |
375 |
op_container_end_page |
391 |
_version_ |
1810431640014422016 |