An Environmental DNA Survey on Distribution of an Endangered Salmonid Species, Parahucho perryi, in Hokkaido, Japan
For protecting endangered species, precise understanding of their distribution is crucial. However, it is often very difficult to estimate at a large scale with conventional methods (e.g., casting nets or electrofishing for aquatic species) because of their low densities in the wild. Sakhalin taimen...
Published in: | Frontiers in Ecology and Evolution |
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ftdoajarticles:oai:doaj.org/article:970a54c2d22245fb84624aa976d968e0 2023-05-15T18:08:47+02:00 An Environmental DNA Survey on Distribution of an Endangered Salmonid Species, Parahucho perryi, in Hokkaido, Japan Hiroki Mizumoto Takashi Mitsuzuka Hitoshi Araki 2020-11-01T00:00:00Z https://doi.org/10.3389/fevo.2020.569425 https://doaj.org/article/970a54c2d22245fb84624aa976d968e0 EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/fevo.2020.569425/full https://doaj.org/toc/2296-701X 2296-701X doi:10.3389/fevo.2020.569425 https://doaj.org/article/970a54c2d22245fb84624aa976d968e0 Frontiers in Ecology and Evolution, Vol 8 (2020) environmental DNA endangered species Sakhalin taimen distribution habitat degradation Evolution QH359-425 Ecology QH540-549.5 article 2020 ftdoajarticles https://doi.org/10.3389/fevo.2020.569425 2022-12-31T03:46:52Z For protecting endangered species, precise understanding of their distribution is crucial. However, it is often very difficult to estimate at a large scale with conventional methods (e.g., casting nets or electrofishing for aquatic species) because of their low densities in the wild. Sakhalin taimen (Parahucho perryi) is one of the largest and most critically endangered freshwater salmonid fishes in the world. In this study, we applied an environmental DNA (eDNA) detection system for this species to 120 rivers in Hokkaido, the second largest main island of Japan. We successfully detected eDNA from Sakhalin taimen in seven rivers (5.8%). Although these rivers were widely distributed across the island, > 95% of the total amounts of eDNA were detected from region-A and -I, indicating that local populations in the other regions of Hokkaido are very small and on the brink of extinction. In addition, principal component analyses based on the eDNA-based estimation of Sakhalin taimen distribution and GIS revealed their distribution determinants including limited topographic relief of watershed as well as presence of wetlands and lagoons. Our results suggest that eDNA-based detection systems are an efficient means of monitoring the population status of endangered freshwater species at large scales. Article in Journal/Newspaper Sakhalin Directory of Open Access Journals: DOAJ Articles Main Island ENVELOPE(-38.220,-38.220,-54.007,-54.007) Frontiers in Ecology and Evolution 8 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
environmental DNA endangered species Sakhalin taimen distribution habitat degradation Evolution QH359-425 Ecology QH540-549.5 |
spellingShingle |
environmental DNA endangered species Sakhalin taimen distribution habitat degradation Evolution QH359-425 Ecology QH540-549.5 Hiroki Mizumoto Takashi Mitsuzuka Hitoshi Araki An Environmental DNA Survey on Distribution of an Endangered Salmonid Species, Parahucho perryi, in Hokkaido, Japan |
topic_facet |
environmental DNA endangered species Sakhalin taimen distribution habitat degradation Evolution QH359-425 Ecology QH540-549.5 |
description |
For protecting endangered species, precise understanding of their distribution is crucial. However, it is often very difficult to estimate at a large scale with conventional methods (e.g., casting nets or electrofishing for aquatic species) because of their low densities in the wild. Sakhalin taimen (Parahucho perryi) is one of the largest and most critically endangered freshwater salmonid fishes in the world. In this study, we applied an environmental DNA (eDNA) detection system for this species to 120 rivers in Hokkaido, the second largest main island of Japan. We successfully detected eDNA from Sakhalin taimen in seven rivers (5.8%). Although these rivers were widely distributed across the island, > 95% of the total amounts of eDNA were detected from region-A and -I, indicating that local populations in the other regions of Hokkaido are very small and on the brink of extinction. In addition, principal component analyses based on the eDNA-based estimation of Sakhalin taimen distribution and GIS revealed their distribution determinants including limited topographic relief of watershed as well as presence of wetlands and lagoons. Our results suggest that eDNA-based detection systems are an efficient means of monitoring the population status of endangered freshwater species at large scales. |
format |
Article in Journal/Newspaper |
author |
Hiroki Mizumoto Takashi Mitsuzuka Hitoshi Araki |
author_facet |
Hiroki Mizumoto Takashi Mitsuzuka Hitoshi Araki |
author_sort |
Hiroki Mizumoto |
title |
An Environmental DNA Survey on Distribution of an Endangered Salmonid Species, Parahucho perryi, in Hokkaido, Japan |
title_short |
An Environmental DNA Survey on Distribution of an Endangered Salmonid Species, Parahucho perryi, in Hokkaido, Japan |
title_full |
An Environmental DNA Survey on Distribution of an Endangered Salmonid Species, Parahucho perryi, in Hokkaido, Japan |
title_fullStr |
An Environmental DNA Survey on Distribution of an Endangered Salmonid Species, Parahucho perryi, in Hokkaido, Japan |
title_full_unstemmed |
An Environmental DNA Survey on Distribution of an Endangered Salmonid Species, Parahucho perryi, in Hokkaido, Japan |
title_sort |
environmental dna survey on distribution of an endangered salmonid species, parahucho perryi, in hokkaido, japan |
publisher |
Frontiers Media S.A. |
publishDate |
2020 |
url |
https://doi.org/10.3389/fevo.2020.569425 https://doaj.org/article/970a54c2d22245fb84624aa976d968e0 |
long_lat |
ENVELOPE(-38.220,-38.220,-54.007,-54.007) |
geographic |
Main Island |
geographic_facet |
Main Island |
genre |
Sakhalin |
genre_facet |
Sakhalin |
op_source |
Frontiers in Ecology and Evolution, Vol 8 (2020) |
op_relation |
https://www.frontiersin.org/articles/10.3389/fevo.2020.569425/full https://doaj.org/toc/2296-701X 2296-701X doi:10.3389/fevo.2020.569425 https://doaj.org/article/970a54c2d22245fb84624aa976d968e0 |
op_doi |
https://doi.org/10.3389/fevo.2020.569425 |
container_title |
Frontiers in Ecology and Evolution |
container_volume |
8 |
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1766181100011388928 |