Fish conservation in the land of steppe and sky:Evolutionarily significant units of threatened salmonid species in Mongolia mirror major river basins
Mongolia's salmonids are suffering extensive population declines; thus, more comprehensive fisheries management and conservation strategies are required. To assist with their development, a better understanding of the genetic structure and diversity of these threatened species would allow a mor...
Published in: | Ecology and Evolution |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2019
|
Subjects: | |
Online Access: | https://pure.uhi.ac.uk/en/publications/dc86a09e-ee31-4b88-96a4-ffd13a07eed1 https://doi.org/10.1002/ece3.4974 http://www.scopus.com/inward/record.url?scp=85063392631&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85063392631&partnerID=8YFLogxK |
id |
ftuhipublicatio:oai:pure.atira.dk:publications/dc86a09e-ee31-4b88-96a4-ffd13a07eed1 |
---|---|
record_format |
openpolar |
spelling |
ftuhipublicatio:oai:pure.atira.dk:publications/dc86a09e-ee31-4b88-96a4-ffd13a07eed1 2024-09-15T18:10:58+00:00 Fish conservation in the land of steppe and sky:Evolutionarily significant units of threatened salmonid species in Mongolia mirror major river basins Kaus, Andrew Michalski, Stefan Hänfling, Bernd Karthe, Daniel Borchardt, Dietrich Durka, Walter 2019-02-27 https://pure.uhi.ac.uk/en/publications/dc86a09e-ee31-4b88-96a4-ffd13a07eed1 https://doi.org/10.1002/ece3.4974 http://www.scopus.com/inward/record.url?scp=85063392631&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85063392631&partnerID=8YFLogxK eng eng https://pure.uhi.ac.uk/en/publications/dc86a09e-ee31-4b88-96a4-ffd13a07eed1 info:eu-repo/semantics/openAccess Kaus , A , Michalski , S , Hänfling , B , Karthe , D , Borchardt , D & Durka , W 2019 , ' Fish conservation in the land of steppe and sky : Evolutionarily significant units of threatened salmonid species in Mongolia mirror major river basins ' , Ecology and Evolution , vol. 9 , no. 6 , pp. 3416-3433 . https://doi.org/10.1002/ece3.4974 Brachymystax lenok evolutionarily significant units freshwater fish conservation Hucho taimen threatened salmonids Thymallus baicalensis article 2019 ftuhipublicatio https://doi.org/10.1002/ece3.4974 2024-07-08T23:37:57Z Mongolia's salmonids are suffering extensive population declines; thus, more comprehensive fisheries management and conservation strategies are required. To assist with their development, a better understanding of the genetic structure and diversity of these threatened species would allow a more targeted approach for preserving genetic variation and ultimately improve long-term species recoveries. It is hypothesized that the unfragmented river basins that have persisted across Mongolia provide unobstructed connectivity for resident salmonid species. Thus, genetic structure is expected to be primarily segregated between major river basins. We tested this hypothesis by investigating the population structure for three salmonid genera (Hucho, Brachymystax and Thymallus) using different genetic markers to identify evolutionarily significant units (ESUs) and priority rivers to focus conservation efforts. Fish were assigned to separate ESUs when the combined evidence of mitochondrial and nuclear data indicated genetic isolation. Hucho taimen exhibited a dichotomous population structure forming two ESUs, with five priority rivers. Within the Brachymystax genus, there were three B. lenokESUs and one B. tumensisESU, along with six priority rivers. While B. tumensiswas confirmed to display divergent mtDNA haplotypes, haplotype sharing between these two congeneric species was also identified. For T. baicalensis,only a single ESU was assigned, with five priority rivers identified plus Lake Hovsgol. Additionally, we confirmed that T. nigrescens from Lake Hovsgol is a synonym of T. baicalensis. Across all species, the most prominent pattern was strong differentiation among major river basins with low differentiation and weak patterns of isolation by distance within river basins, which corroborated our hypothesis of high within-basin connectivity across Mongolia. This new genetic information provides authorities the opportunity to distribute resources for management between ESUs while assigning additional protection for the ... Article in Journal/Newspaper Hucho taimen University of the Highlands and Islands: Research Database of UHI Ecology and Evolution 9 6 3416 3433 |
institution |
Open Polar |
collection |
University of the Highlands and Islands: Research Database of UHI |
op_collection_id |
ftuhipublicatio |
language |
English |
topic |
Brachymystax lenok evolutionarily significant units freshwater fish conservation Hucho taimen threatened salmonids Thymallus baicalensis |
spellingShingle |
Brachymystax lenok evolutionarily significant units freshwater fish conservation Hucho taimen threatened salmonids Thymallus baicalensis Kaus, Andrew Michalski, Stefan Hänfling, Bernd Karthe, Daniel Borchardt, Dietrich Durka, Walter Fish conservation in the land of steppe and sky:Evolutionarily significant units of threatened salmonid species in Mongolia mirror major river basins |
topic_facet |
Brachymystax lenok evolutionarily significant units freshwater fish conservation Hucho taimen threatened salmonids Thymallus baicalensis |
description |
Mongolia's salmonids are suffering extensive population declines; thus, more comprehensive fisheries management and conservation strategies are required. To assist with their development, a better understanding of the genetic structure and diversity of these threatened species would allow a more targeted approach for preserving genetic variation and ultimately improve long-term species recoveries. It is hypothesized that the unfragmented river basins that have persisted across Mongolia provide unobstructed connectivity for resident salmonid species. Thus, genetic structure is expected to be primarily segregated between major river basins. We tested this hypothesis by investigating the population structure for three salmonid genera (Hucho, Brachymystax and Thymallus) using different genetic markers to identify evolutionarily significant units (ESUs) and priority rivers to focus conservation efforts. Fish were assigned to separate ESUs when the combined evidence of mitochondrial and nuclear data indicated genetic isolation. Hucho taimen exhibited a dichotomous population structure forming two ESUs, with five priority rivers. Within the Brachymystax genus, there were three B. lenokESUs and one B. tumensisESU, along with six priority rivers. While B. tumensiswas confirmed to display divergent mtDNA haplotypes, haplotype sharing between these two congeneric species was also identified. For T. baicalensis,only a single ESU was assigned, with five priority rivers identified plus Lake Hovsgol. Additionally, we confirmed that T. nigrescens from Lake Hovsgol is a synonym of T. baicalensis. Across all species, the most prominent pattern was strong differentiation among major river basins with low differentiation and weak patterns of isolation by distance within river basins, which corroborated our hypothesis of high within-basin connectivity across Mongolia. This new genetic information provides authorities the opportunity to distribute resources for management between ESUs while assigning additional protection for the ... |
format |
Article in Journal/Newspaper |
author |
Kaus, Andrew Michalski, Stefan Hänfling, Bernd Karthe, Daniel Borchardt, Dietrich Durka, Walter |
author_facet |
Kaus, Andrew Michalski, Stefan Hänfling, Bernd Karthe, Daniel Borchardt, Dietrich Durka, Walter |
author_sort |
Kaus, Andrew |
title |
Fish conservation in the land of steppe and sky:Evolutionarily significant units of threatened salmonid species in Mongolia mirror major river basins |
title_short |
Fish conservation in the land of steppe and sky:Evolutionarily significant units of threatened salmonid species in Mongolia mirror major river basins |
title_full |
Fish conservation in the land of steppe and sky:Evolutionarily significant units of threatened salmonid species in Mongolia mirror major river basins |
title_fullStr |
Fish conservation in the land of steppe and sky:Evolutionarily significant units of threatened salmonid species in Mongolia mirror major river basins |
title_full_unstemmed |
Fish conservation in the land of steppe and sky:Evolutionarily significant units of threatened salmonid species in Mongolia mirror major river basins |
title_sort |
fish conservation in the land of steppe and sky:evolutionarily significant units of threatened salmonid species in mongolia mirror major river basins |
publishDate |
2019 |
url |
https://pure.uhi.ac.uk/en/publications/dc86a09e-ee31-4b88-96a4-ffd13a07eed1 https://doi.org/10.1002/ece3.4974 http://www.scopus.com/inward/record.url?scp=85063392631&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85063392631&partnerID=8YFLogxK |
genre |
Hucho taimen |
genre_facet |
Hucho taimen |
op_source |
Kaus , A , Michalski , S , Hänfling , B , Karthe , D , Borchardt , D & Durka , W 2019 , ' Fish conservation in the land of steppe and sky : Evolutionarily significant units of threatened salmonid species in Mongolia mirror major river basins ' , Ecology and Evolution , vol. 9 , no. 6 , pp. 3416-3433 . https://doi.org/10.1002/ece3.4974 |
op_relation |
https://pure.uhi.ac.uk/en/publications/dc86a09e-ee31-4b88-96a4-ffd13a07eed1 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1002/ece3.4974 |
container_title |
Ecology and Evolution |
container_volume |
9 |
container_issue |
6 |
container_start_page |
3416 |
op_container_end_page |
3433 |
_version_ |
1810448568808374272 |