Population genetic structure of Alaskan Pacific ocean perch (Sebastes alutus)
Thesis (M.S.) University of Alaska Fairbanks, 2008 Knowledge of the population structure of a species is essential for its effective management and sustained production. Although Pacific ocean perch (Sebastes alutus, POP) is an important species both economically and ecologically, little is known ab...
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ftunivalaska:oai:scholarworks.alaska.edu:11122/8239 2023-05-15T15:43:53+02:00 Population genetic structure of Alaskan Pacific ocean perch (Sebastes alutus) Palof, Katie J. Gharrett, Anthony J. Heifetz, Jonathan Hillgruber, Nicola 2008-05 http://hdl.handle.net/11122/8239 en_US eng http://hdl.handle.net/11122/8239 Fisheries Division Pacific ocean perch Alaska Genetics Thesis ms 2008 ftunivalaska 2023-02-23T21:37:00Z Thesis (M.S.) University of Alaska Fairbanks, 2008 Knowledge of the population structure of a species is essential for its effective management and sustained production. Although Pacific ocean perch (Sebastes alutus, POP) is an important species both economically and ecologically, little is known about its population structure and life history in Alaskan waters. The objectives of this study were to describe the population structure of POP in terms of the numbers and geographic scale oflocal populations, their connectivity, and the compatibility of that structure with current management. Fourteen micro satellite loci were used to characterize the population structure genetically in eleven geographically distinct collections from sites along the continental shelf from the Queen Charlotte Islands to the Bering Sea. In spite of the many opportunities for most life stages to disperse, there was strong geographically related genetic structure (Fst =0.0123, p <10⁻⁵). Adults appear to belong to neighborhoods that exchange genetic information at relatively small spatial scales (14 to 90 km). Although this suggests limited movement, connectivity is evidenced by the isolation-by-distance relationship, the apparent northwestward movement of gene flow in the Gulf of Alaska (GOA), and the break in geneflow in the central GOA. The observed population structure has a finer geographic scale than management areas, which suggests that current fisheries management should be revisited. 1. Introduction -- Materials and methods -- Sample collection and DNA isolation -- Microsatellite amplification -- Microsatellite analysis -- Data analysis -- Results -- Genetic variation within samples -- Genetic structure among samples -- Connectivity -- Bottleneck -- Effective population size -- Relatedness. Thesis Bering Sea Alaska University of Alaska: ScholarWorks@UA Bering Sea Fairbanks Gulf of Alaska Pacific Queen Charlotte ENVELOPE(-132.088,-132.088,53.255,53.255) |
institution |
Open Polar |
collection |
University of Alaska: ScholarWorks@UA |
op_collection_id |
ftunivalaska |
language |
English |
topic |
Pacific ocean perch Alaska Genetics |
spellingShingle |
Pacific ocean perch Alaska Genetics Palof, Katie J. Population genetic structure of Alaskan Pacific ocean perch (Sebastes alutus) |
topic_facet |
Pacific ocean perch Alaska Genetics |
description |
Thesis (M.S.) University of Alaska Fairbanks, 2008 Knowledge of the population structure of a species is essential for its effective management and sustained production. Although Pacific ocean perch (Sebastes alutus, POP) is an important species both economically and ecologically, little is known about its population structure and life history in Alaskan waters. The objectives of this study were to describe the population structure of POP in terms of the numbers and geographic scale oflocal populations, their connectivity, and the compatibility of that structure with current management. Fourteen micro satellite loci were used to characterize the population structure genetically in eleven geographically distinct collections from sites along the continental shelf from the Queen Charlotte Islands to the Bering Sea. In spite of the many opportunities for most life stages to disperse, there was strong geographically related genetic structure (Fst =0.0123, p <10⁻⁵). Adults appear to belong to neighborhoods that exchange genetic information at relatively small spatial scales (14 to 90 km). Although this suggests limited movement, connectivity is evidenced by the isolation-by-distance relationship, the apparent northwestward movement of gene flow in the Gulf of Alaska (GOA), and the break in geneflow in the central GOA. The observed population structure has a finer geographic scale than management areas, which suggests that current fisheries management should be revisited. 1. Introduction -- Materials and methods -- Sample collection and DNA isolation -- Microsatellite amplification -- Microsatellite analysis -- Data analysis -- Results -- Genetic variation within samples -- Genetic structure among samples -- Connectivity -- Bottleneck -- Effective population size -- Relatedness. |
author2 |
Gharrett, Anthony J. Heifetz, Jonathan Hillgruber, Nicola |
format |
Thesis |
author |
Palof, Katie J. |
author_facet |
Palof, Katie J. |
author_sort |
Palof, Katie J. |
title |
Population genetic structure of Alaskan Pacific ocean perch (Sebastes alutus) |
title_short |
Population genetic structure of Alaskan Pacific ocean perch (Sebastes alutus) |
title_full |
Population genetic structure of Alaskan Pacific ocean perch (Sebastes alutus) |
title_fullStr |
Population genetic structure of Alaskan Pacific ocean perch (Sebastes alutus) |
title_full_unstemmed |
Population genetic structure of Alaskan Pacific ocean perch (Sebastes alutus) |
title_sort |
population genetic structure of alaskan pacific ocean perch (sebastes alutus) |
publishDate |
2008 |
url |
http://hdl.handle.net/11122/8239 |
long_lat |
ENVELOPE(-132.088,-132.088,53.255,53.255) |
geographic |
Bering Sea Fairbanks Gulf of Alaska Pacific Queen Charlotte |
geographic_facet |
Bering Sea Fairbanks Gulf of Alaska Pacific Queen Charlotte |
genre |
Bering Sea Alaska |
genre_facet |
Bering Sea Alaska |
op_relation |
http://hdl.handle.net/11122/8239 Fisheries Division |
_version_ |
1766378090871652352 |