Detecting Signatures of Selection in a Population of Lake Whitefish (Coregonus clupeaformis) Subject to Overharvesting in Lesser Slave Lake, Alberta
Size-selective harvest has been common practice in over-exploited commercial fish populations. Yet, few studies have shown that selective harvest also implicates non-random selection with regards to genetic composition, or have considered genetic population structure, even though this is necessary t...
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Online Access: | http://hdl.handle.net/11023/1298 https://doi.org/10.11575/PRISM/25597 |
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ftunivcalgary:oai:prism.ucalgary.ca:11023/1298 2023-08-27T04:10:29+02:00 Detecting Signatures of Selection in a Population of Lake Whitefish (Coregonus clupeaformis) Subject to Overharvesting in Lesser Slave Lake, Alberta Chebib, Jobran Maurice Rogers, Sean 2014 application/pdf http://hdl.handle.net/11023/1298 https://doi.org/10.11575/PRISM/25597 eng eng Graduate Studies University of Calgary Calgary Chebib, J. M. (2014). Detecting Signatures of Selection in a Population of Lake Whitefish (Coregonus clupeaformis) Subject to Overharvesting in Lesser Slave Lake, Alberta (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/25597 http://dx.doi.org/10.11575/PRISM/25597 http://hdl.handle.net/11023/1298 University of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission. Fisheries and Aquaculture Ecology Genetics Evolution selection fisheries-induced Population structure fisheries harvesting molecular ecology Temporal Stability lake whitefish Lesser Slave Lake commercial fisheries Alberta microsatellite single nucleotide polymorphism SNP SNP chip Over exploited multi mesh test net gill net candidate loci fisheries management population theory dynamic system Dynamic Biology fish master thesis 2014 ftunivcalgary https://doi.org/10.11575/PRISM/25597 2023-08-06T06:32:37Z Size-selective harvest has been common practice in over-exploited commercial fish populations. Yet, few studies have shown that selective harvest also implicates non-random selection with regards to genetic composition, or have considered genetic population structure, even though this is necessary to implicate harvest in the evolution of over-exploited fish stocks. I investigated both genetic population structure and selection in a historically over-exploited lake whitefish (Coregonus clupeaformis) population associated with fisheries-induced evolution in Lesser Slave Lake, Alberta, Canada. Archived samples DNA of lake whitefish caught between 1986 and 1999 were genotyped at 20 microsatellite or 51 SNP loci associated with growth the species. Multi-mesh test-netting represents random harvests of genetic variability, whereas individuals harvested using commercial mesh nets represented non-random samples with respect to genetic composition in one SNP associated with metabolism. Selective removal of genetic variation can have unintended evolutionary consequences, which may lead to the collapse of fish stocks. Master Thesis Lesser Slave lake Slave Lake PRISM - University of Calgary Digital Repository Canada |
institution |
Open Polar |
collection |
PRISM - University of Calgary Digital Repository |
op_collection_id |
ftunivcalgary |
language |
English |
topic |
Fisheries and Aquaculture Ecology Genetics Evolution selection fisheries-induced Population structure fisheries harvesting molecular ecology Temporal Stability lake whitefish Lesser Slave Lake commercial fisheries Alberta microsatellite single nucleotide polymorphism SNP SNP chip Over exploited multi mesh test net gill net candidate loci fisheries management population theory dynamic system Dynamic Biology fish |
spellingShingle |
Fisheries and Aquaculture Ecology Genetics Evolution selection fisheries-induced Population structure fisheries harvesting molecular ecology Temporal Stability lake whitefish Lesser Slave Lake commercial fisheries Alberta microsatellite single nucleotide polymorphism SNP SNP chip Over exploited multi mesh test net gill net candidate loci fisheries management population theory dynamic system Dynamic Biology fish Chebib, Jobran Maurice Detecting Signatures of Selection in a Population of Lake Whitefish (Coregonus clupeaformis) Subject to Overharvesting in Lesser Slave Lake, Alberta |
topic_facet |
Fisheries and Aquaculture Ecology Genetics Evolution selection fisheries-induced Population structure fisheries harvesting molecular ecology Temporal Stability lake whitefish Lesser Slave Lake commercial fisheries Alberta microsatellite single nucleotide polymorphism SNP SNP chip Over exploited multi mesh test net gill net candidate loci fisheries management population theory dynamic system Dynamic Biology fish |
description |
Size-selective harvest has been common practice in over-exploited commercial fish populations. Yet, few studies have shown that selective harvest also implicates non-random selection with regards to genetic composition, or have considered genetic population structure, even though this is necessary to implicate harvest in the evolution of over-exploited fish stocks. I investigated both genetic population structure and selection in a historically over-exploited lake whitefish (Coregonus clupeaformis) population associated with fisheries-induced evolution in Lesser Slave Lake, Alberta, Canada. Archived samples DNA of lake whitefish caught between 1986 and 1999 were genotyped at 20 microsatellite or 51 SNP loci associated with growth the species. Multi-mesh test-netting represents random harvests of genetic variability, whereas individuals harvested using commercial mesh nets represented non-random samples with respect to genetic composition in one SNP associated with metabolism. Selective removal of genetic variation can have unintended evolutionary consequences, which may lead to the collapse of fish stocks. |
author2 |
Rogers, Sean |
format |
Master Thesis |
author |
Chebib, Jobran Maurice |
author_facet |
Chebib, Jobran Maurice |
author_sort |
Chebib, Jobran Maurice |
title |
Detecting Signatures of Selection in a Population of Lake Whitefish (Coregonus clupeaformis) Subject to Overharvesting in Lesser Slave Lake, Alberta |
title_short |
Detecting Signatures of Selection in a Population of Lake Whitefish (Coregonus clupeaformis) Subject to Overharvesting in Lesser Slave Lake, Alberta |
title_full |
Detecting Signatures of Selection in a Population of Lake Whitefish (Coregonus clupeaformis) Subject to Overharvesting in Lesser Slave Lake, Alberta |
title_fullStr |
Detecting Signatures of Selection in a Population of Lake Whitefish (Coregonus clupeaformis) Subject to Overharvesting in Lesser Slave Lake, Alberta |
title_full_unstemmed |
Detecting Signatures of Selection in a Population of Lake Whitefish (Coregonus clupeaformis) Subject to Overharvesting in Lesser Slave Lake, Alberta |
title_sort |
detecting signatures of selection in a population of lake whitefish (coregonus clupeaformis) subject to overharvesting in lesser slave lake, alberta |
publisher |
Graduate Studies |
publishDate |
2014 |
url |
http://hdl.handle.net/11023/1298 https://doi.org/10.11575/PRISM/25597 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Lesser Slave lake Slave Lake |
genre_facet |
Lesser Slave lake Slave Lake |
op_relation |
Chebib, J. M. (2014). Detecting Signatures of Selection in a Population of Lake Whitefish (Coregonus clupeaformis) Subject to Overharvesting in Lesser Slave Lake, Alberta (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/25597 http://dx.doi.org/10.11575/PRISM/25597 http://hdl.handle.net/11023/1298 |
op_rights |
University of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission. |
op_doi |
https://doi.org/10.11575/PRISM/25597 |
_version_ |
1775352541537632256 |