Comparison of genetic and visual identification of cisco and lake whitefish larvae from Chaumont Bay, Lake Ontario
Cisco (Coregonus artedi) are an important component of native food webs in the Great Lakes, and their restoration is instrumental to the recovery of lake trout (Salvelinus namaycush) and Atlantic salmon (Salmo salar). Difficulties with visual identification of larvae can confound early life history...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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crcansciencepubl:10.1139/cjfas-2017-0186 2024-09-15T17:56:25+00:00 Comparison of genetic and visual identification of cisco and lake whitefish larvae from Chaumont Bay, Lake Ontario George, Ellen M. Hare, Matthew P. Crabtree, Darran L. Lantry, Brian F. Rudstam, Lars G. 2018 http://dx.doi.org/10.1139/cjfas-2017-0186 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfas-2017-0186 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfas-2017-0186 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 75, issue 8, page 1329-1336 ISSN 0706-652X 1205-7533 journal-article 2018 crcansciencepubl https://doi.org/10.1139/cjfas-2017-0186 2024-07-18T04:13:31Z Cisco (Coregonus artedi) are an important component of native food webs in the Great Lakes, and their restoration is instrumental to the recovery of lake trout (Salvelinus namaycush) and Atlantic salmon (Salmo salar). Difficulties with visual identification of larvae can confound early life history surveys, as cisco are often difficult to distinguish from lake whitefish (Coregonus clupeaformis). We compared traditional visual species identification methods with genetic identifications based on barcoding of the mitochondrial cytochrome c oxidase I gene for 726 coregonine larvae caught in Chaumont Bay, Lake Ontario. We found little agreement between the visual characteristics of cisco identified by genetic barcoding and the most widely used dichotomous key, and the considerable overlap in ranges of traditionally utilized metrics suggests that visual identification of coregonine larvae from Chaumont Bay is impractical. Coregonines are highly variable and plastic species and often display wide variations in morphometric characteristics across their broad range. This study highlights the importance of developing accurate, geographically appropriate larval identification methods to best inform cisco restoration and management efforts. Article in Journal/Newspaper Atlantic salmon Salmo salar Canadian Science Publishing Canadian Journal of Fisheries and Aquatic Sciences 75 8 1329 1336 |
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Canadian Science Publishing |
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crcansciencepubl |
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English |
description |
Cisco (Coregonus artedi) are an important component of native food webs in the Great Lakes, and their restoration is instrumental to the recovery of lake trout (Salvelinus namaycush) and Atlantic salmon (Salmo salar). Difficulties with visual identification of larvae can confound early life history surveys, as cisco are often difficult to distinguish from lake whitefish (Coregonus clupeaformis). We compared traditional visual species identification methods with genetic identifications based on barcoding of the mitochondrial cytochrome c oxidase I gene for 726 coregonine larvae caught in Chaumont Bay, Lake Ontario. We found little agreement between the visual characteristics of cisco identified by genetic barcoding and the most widely used dichotomous key, and the considerable overlap in ranges of traditionally utilized metrics suggests that visual identification of coregonine larvae from Chaumont Bay is impractical. Coregonines are highly variable and plastic species and often display wide variations in morphometric characteristics across their broad range. This study highlights the importance of developing accurate, geographically appropriate larval identification methods to best inform cisco restoration and management efforts. |
format |
Article in Journal/Newspaper |
author |
George, Ellen M. Hare, Matthew P. Crabtree, Darran L. Lantry, Brian F. Rudstam, Lars G. |
spellingShingle |
George, Ellen M. Hare, Matthew P. Crabtree, Darran L. Lantry, Brian F. Rudstam, Lars G. Comparison of genetic and visual identification of cisco and lake whitefish larvae from Chaumont Bay, Lake Ontario |
author_facet |
George, Ellen M. Hare, Matthew P. Crabtree, Darran L. Lantry, Brian F. Rudstam, Lars G. |
author_sort |
George, Ellen M. |
title |
Comparison of genetic and visual identification of cisco and lake whitefish larvae from Chaumont Bay, Lake Ontario |
title_short |
Comparison of genetic and visual identification of cisco and lake whitefish larvae from Chaumont Bay, Lake Ontario |
title_full |
Comparison of genetic and visual identification of cisco and lake whitefish larvae from Chaumont Bay, Lake Ontario |
title_fullStr |
Comparison of genetic and visual identification of cisco and lake whitefish larvae from Chaumont Bay, Lake Ontario |
title_full_unstemmed |
Comparison of genetic and visual identification of cisco and lake whitefish larvae from Chaumont Bay, Lake Ontario |
title_sort |
comparison of genetic and visual identification of cisco and lake whitefish larvae from chaumont bay, lake ontario |
publisher |
Canadian Science Publishing |
publishDate |
2018 |
url |
http://dx.doi.org/10.1139/cjfas-2017-0186 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfas-2017-0186 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfas-2017-0186 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 75, issue 8, page 1329-1336 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/cjfas-2017-0186 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
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75 |
container_issue |
8 |
container_start_page |
1329 |
op_container_end_page |
1336 |
_version_ |
1810432619849973760 |