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 |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Frontiers Media
|
Subjects: | |
Online Access: | http://hdl.handle.net/2115/80147 https://doi.org/10.3389/fevo.2020.569425 |
id |
fthokunivhus:oai:eprints.lib.hokudai.ac.jp:2115/80147 |
---|---|
record_format |
openpolar |
spelling |
fthokunivhus:oai:eprints.lib.hokudai.ac.jp:2115/80147 2023-05-15T18:08:47+02:00 An Environmental DNA Survey on Distribution of an Endangered Salmonid Species, Parahucho perryi, in Hokkaido, Japan Mizumoto, Hiroki Mitsuzuka, Takashi Araki, Hitoshi http://hdl.handle.net/2115/80147 https://doi.org/10.3389/fevo.2020.569425 eng eng Frontiers Media http://hdl.handle.net/2115/80147 Frontiers in Ecology and Evolution, 8: 569425 http://dx.doi.org/10.3389/fevo.2020.569425 https://creativecommons.org/licenses/by/4.0/ CC-BY environmental DNA endangered species Sakhalin taimen distribution habitat degradation 468 article fthokunivhus https://doi.org/10.3389/fevo.2020.569425 2022-11-18T01:06:16Z 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 Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) Main Island ENVELOPE(-38.220,-38.220,-54.007,-54.007) Frontiers in Ecology and Evolution 8 |
institution |
Open Polar |
collection |
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) |
op_collection_id |
fthokunivhus |
language |
English |
topic |
environmental DNA endangered species Sakhalin taimen distribution habitat degradation 468 |
spellingShingle |
environmental DNA endangered species Sakhalin taimen distribution habitat degradation 468 Mizumoto, Hiroki Mitsuzuka, Takashi Araki, Hitoshi 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 468 |
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 |
Mizumoto, Hiroki Mitsuzuka, Takashi Araki, Hitoshi |
author_facet |
Mizumoto, Hiroki Mitsuzuka, Takashi Araki, Hitoshi |
author_sort |
Mizumoto, Hiroki |
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 |
url |
http://hdl.handle.net/2115/80147 https://doi.org/10.3389/fevo.2020.569425 |
long_lat |
ENVELOPE(-38.220,-38.220,-54.007,-54.007) |
geographic |
Main Island |
geographic_facet |
Main Island |
genre |
Sakhalin |
genre_facet |
Sakhalin |
op_relation |
http://hdl.handle.net/2115/80147 Frontiers in Ecology and Evolution, 8: 569425 http://dx.doi.org/10.3389/fevo.2020.569425 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fevo.2020.569425 |
container_title |
Frontiers in Ecology and Evolution |
container_volume |
8 |
_version_ |
1766181100430819328 |