Which Witch is Which? A Study of the Stock Structure of Witch Flounder ( Glyptocephalus cynoglossus ) in the Newfoundland Region
Genetic variability at two protein loci (phosphoglucomutase and superoxide dismutase) was assessed both within and among three major management areas for witch flounder (Glyptocephalus cynoglossus) in the Newfoundland region. The genetic analysis revealed population subdivision within each of the ma...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Language: | English |
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Canadian Science Publishing
1981
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Online Access: | http://dx.doi.org/10.1139/f81-107 http://www.nrcresearchpress.com/doi/pdf/10.1139/f81-107 |
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crcansciencepubl:10.1139/f81-107 2023-12-17T10:39:57+01:00 Which Witch is Which? A Study of the Stock Structure of Witch Flounder ( Glyptocephalus cynoglossus ) in the Newfoundland Region Fairbairn, D. J. 1981 http://dx.doi.org/10.1139/f81-107 http://www.nrcresearchpress.com/doi/pdf/10.1139/f81-107 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 38, issue 7, page 782-794 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 1981 crcansciencepubl https://doi.org/10.1139/f81-107 2023-11-19T13:38:48Z Genetic variability at two protein loci (phosphoglucomutase and superoxide dismutase) was assessed both within and among three major management areas for witch flounder (Glyptocephalus cynoglossus) in the Newfoundland region. The genetic analysis revealed population subdivision within each of the major management areas, giving a total of six subpopulations or stocks. These genetically defined stocks also differed with respect to population structure, time of spawning, individual growth rate, and temperature and depth of capture. These results suggest that witch flounder in the Newfoundland region exist in relatively small, independent subpopulations with little inter-stock migration. This population structure is at odds with current practices of managing witch flounder as large homogeneous stock units.Key words: witch flounder, stock discrimination, biochemical genetics, phosphoglucomutase, superoxide dismutase, electrophoresis Article in Journal/Newspaper Newfoundland Canadian Science Publishing (via Crossref) Canadian Journal of Fisheries and Aquatic Sciences 38 7 782 794 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Fairbairn, D. J. Which Witch is Which? A Study of the Stock Structure of Witch Flounder ( Glyptocephalus cynoglossus ) in the Newfoundland Region |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Genetic variability at two protein loci (phosphoglucomutase and superoxide dismutase) was assessed both within and among three major management areas for witch flounder (Glyptocephalus cynoglossus) in the Newfoundland region. The genetic analysis revealed population subdivision within each of the major management areas, giving a total of six subpopulations or stocks. These genetically defined stocks also differed with respect to population structure, time of spawning, individual growth rate, and temperature and depth of capture. These results suggest that witch flounder in the Newfoundland region exist in relatively small, independent subpopulations with little inter-stock migration. This population structure is at odds with current practices of managing witch flounder as large homogeneous stock units.Key words: witch flounder, stock discrimination, biochemical genetics, phosphoglucomutase, superoxide dismutase, electrophoresis |
format |
Article in Journal/Newspaper |
author |
Fairbairn, D. J. |
author_facet |
Fairbairn, D. J. |
author_sort |
Fairbairn, D. J. |
title |
Which Witch is Which? A Study of the Stock Structure of Witch Flounder ( Glyptocephalus cynoglossus ) in the Newfoundland Region |
title_short |
Which Witch is Which? A Study of the Stock Structure of Witch Flounder ( Glyptocephalus cynoglossus ) in the Newfoundland Region |
title_full |
Which Witch is Which? A Study of the Stock Structure of Witch Flounder ( Glyptocephalus cynoglossus ) in the Newfoundland Region |
title_fullStr |
Which Witch is Which? A Study of the Stock Structure of Witch Flounder ( Glyptocephalus cynoglossus ) in the Newfoundland Region |
title_full_unstemmed |
Which Witch is Which? A Study of the Stock Structure of Witch Flounder ( Glyptocephalus cynoglossus ) in the Newfoundland Region |
title_sort |
which witch is which? a study of the stock structure of witch flounder ( glyptocephalus cynoglossus ) in the newfoundland region |
publisher |
Canadian Science Publishing |
publishDate |
1981 |
url |
http://dx.doi.org/10.1139/f81-107 http://www.nrcresearchpress.com/doi/pdf/10.1139/f81-107 |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 38, issue 7, page 782-794 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f81-107 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
38 |
container_issue |
7 |
container_start_page |
782 |
op_container_end_page |
794 |
_version_ |
1785544653263601664 |