Genetic monitoring informs conservation status and trend of Arctic grayling at the southern edge of their distribution
The number of effective breeders (N b ) has been touted as a means to monitor freshwater fishes, but the realized application of N b has been limited. Using genetic monitoring data for two Arctic grayling (Thymallus arcticus) populations of conservation concern, we describe temporal trends in geneti...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Language: | English |
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crcansciencepubl:10.1139/cjfas-2020-0196 2024-03-03T08:40:23+00:00 Genetic monitoring informs conservation status and trend of Arctic grayling at the southern edge of their distribution Kovach, Ryan P. Whiteley, Andrew R. Jaeger, Matthew E. Painter, Sally Lodmell, Angela Leary, Robb F. 2020 http://dx.doi.org/10.1139/cjfas-2020-0196 https://cdnsciencepub.com/doi/full-xml/10.1139/cjfas-2020-0196 https://cdnsciencepub.com/doi/pdf/10.1139/cjfas-2020-0196 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 77, issue 12, page 1934-1942 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2020 crcansciencepubl https://doi.org/10.1139/cjfas-2020-0196 2024-02-07T10:53:40Z The number of effective breeders (N b ) has been touted as a means to monitor freshwater fishes, but the realized application of N b has been limited. Using genetic monitoring data for two Arctic grayling (Thymallus arcticus) populations of conservation concern, we describe temporal trends in genetic variation and N b , determine how sampling and variance in reproductive success influence estimates of N b , and quantify the relationship among N b , effective population size (N e ), and adult abundance (N c ). Temporal trends in allelic richness (A R ) and N b tracked known or suspected population trajectories. N b increased in one population where there has been extensive conservation action, and both N b and A R tracked a decline in the other population where harsh winter conditions have resulted in overwinter mortality events. After accounting for population demography, N e estimates for each population were 190.7 and 308.8. Overall, this study demonstrates that temporal genetic data effectively resolve demographic and evolutionary status and trend in Arctic grayling, provides insight into the demographic factors that influence genetic variation, and emphasizes the value of temporal genetic data for conservation and management. Article in Journal/Newspaper Arctic grayling Arctic Thymallus arcticus Canadian Science Publishing Arctic Canadian Journal of Fisheries and Aquatic Sciences 77 12 1934 1942 |
institution |
Open Polar |
collection |
Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Kovach, Ryan P. Whiteley, Andrew R. Jaeger, Matthew E. Painter, Sally Lodmell, Angela Leary, Robb F. Genetic monitoring informs conservation status and trend of Arctic grayling at the southern edge of their distribution |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
The number of effective breeders (N b ) has been touted as a means to monitor freshwater fishes, but the realized application of N b has been limited. Using genetic monitoring data for two Arctic grayling (Thymallus arcticus) populations of conservation concern, we describe temporal trends in genetic variation and N b , determine how sampling and variance in reproductive success influence estimates of N b , and quantify the relationship among N b , effective population size (N e ), and adult abundance (N c ). Temporal trends in allelic richness (A R ) and N b tracked known or suspected population trajectories. N b increased in one population where there has been extensive conservation action, and both N b and A R tracked a decline in the other population where harsh winter conditions have resulted in overwinter mortality events. After accounting for population demography, N e estimates for each population were 190.7 and 308.8. Overall, this study demonstrates that temporal genetic data effectively resolve demographic and evolutionary status and trend in Arctic grayling, provides insight into the demographic factors that influence genetic variation, and emphasizes the value of temporal genetic data for conservation and management. |
format |
Article in Journal/Newspaper |
author |
Kovach, Ryan P. Whiteley, Andrew R. Jaeger, Matthew E. Painter, Sally Lodmell, Angela Leary, Robb F. |
author_facet |
Kovach, Ryan P. Whiteley, Andrew R. Jaeger, Matthew E. Painter, Sally Lodmell, Angela Leary, Robb F. |
author_sort |
Kovach, Ryan P. |
title |
Genetic monitoring informs conservation status and trend of Arctic grayling at the southern edge of their distribution |
title_short |
Genetic monitoring informs conservation status and trend of Arctic grayling at the southern edge of their distribution |
title_full |
Genetic monitoring informs conservation status and trend of Arctic grayling at the southern edge of their distribution |
title_fullStr |
Genetic monitoring informs conservation status and trend of Arctic grayling at the southern edge of their distribution |
title_full_unstemmed |
Genetic monitoring informs conservation status and trend of Arctic grayling at the southern edge of their distribution |
title_sort |
genetic monitoring informs conservation status and trend of arctic grayling at the southern edge of their distribution |
publisher |
Canadian Science Publishing |
publishDate |
2020 |
url |
http://dx.doi.org/10.1139/cjfas-2020-0196 https://cdnsciencepub.com/doi/full-xml/10.1139/cjfas-2020-0196 https://cdnsciencepub.com/doi/pdf/10.1139/cjfas-2020-0196 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic grayling Arctic Thymallus arcticus |
genre_facet |
Arctic grayling Arctic Thymallus arcticus |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 77, issue 12, page 1934-1942 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/cjfas-2020-0196 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
77 |
container_issue |
12 |
container_start_page |
1934 |
op_container_end_page |
1942 |
_version_ |
1792496080385998848 |