Molecular detection of giant snakeheads, Channa micropeltes (Cuvier, 1831), one of the most troublesome fish species

Abstract A lack of reliable tools for determining the presence and distribution of fish species can impede understanding of predator–prey interactions and fishery management. Conventional fish survey methods are invasive, and can be size or species selective. Combining netting and electrofishing is...

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Autores principales:	Maslin Osathanunkul, Toshifumi Minamoto
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e2fb7d84301341ecb9b95f193a31f60b
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spelling	oai:doaj.org-article:e2fb7d84301341ecb9b95f193a31f60b2021-12-02T16:58:20ZMolecular detection of giant snakeheads, Channa micropeltes (Cuvier, 1831), one of the most troublesome fish species10.1038/s41598-021-89320-22045-2322https://doaj.org/article/e2fb7d84301341ecb9b95f193a31f60b2021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-89320-2https://doaj.org/toc/2045-2322Abstract A lack of reliable tools for determining the presence and distribution of fish species can impede understanding of predator–prey interactions and fishery management. Conventional fish survey methods are invasive, and can be size or species selective. Combining netting and electrofishing is a current method used to monitor fish species in Phayao Lake (Kwan Phayao), Thailand. However, the methods are inefficient and time-consuming. Recently, locals who rely on inland fisheries in Kwan Phayao expressed their deep concerns about the giant snakehead, Channa micropeltes (Cuvier, 1831) destroying other fish there. The giant snakehead prey on many commercially important fish species, as the prey species is reduced, negative effects on both biodiversity and the fishery sector could follow. Here, an eDNA-based survey was developed to detect the presence of the giant snakehead. Water samples were collected from six sites within Kwan Phayao and 17 sites in Ing River where water flowed into and out of Kwan Payao. The eDNA of the giant snakehead was detected in water samples from all collection sites using the developed qPCR assay with various concentrations. The eDNA was shown here to be a sensitive and reliable tool for fish surveillance so there will be a better chance for developing an effective management strategy.Maslin OsathanunkulToshifumi MinamotoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-7 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Maslin Osathanunkul Toshifumi Minamoto Molecular detection of giant snakeheads, Channa micropeltes (Cuvier, 1831), one of the most troublesome fish species
description	Abstract A lack of reliable tools for determining the presence and distribution of fish species can impede understanding of predator–prey interactions and fishery management. Conventional fish survey methods are invasive, and can be size or species selective. Combining netting and electrofishing is a current method used to monitor fish species in Phayao Lake (Kwan Phayao), Thailand. However, the methods are inefficient and time-consuming. Recently, locals who rely on inland fisheries in Kwan Phayao expressed their deep concerns about the giant snakehead, Channa micropeltes (Cuvier, 1831) destroying other fish there. The giant snakehead prey on many commercially important fish species, as the prey species is reduced, negative effects on both biodiversity and the fishery sector could follow. Here, an eDNA-based survey was developed to detect the presence of the giant snakehead. Water samples were collected from six sites within Kwan Phayao and 17 sites in Ing River where water flowed into and out of Kwan Payao. The eDNA of the giant snakehead was detected in water samples from all collection sites using the developed qPCR assay with various concentrations. The eDNA was shown here to be a sensitive and reliable tool for fish surveillance so there will be a better chance for developing an effective management strategy.
format	article
author	Maslin Osathanunkul Toshifumi Minamoto
author_facet	Maslin Osathanunkul Toshifumi Minamoto
author_sort	Maslin Osathanunkul
title	Molecular detection of giant snakeheads, Channa micropeltes (Cuvier, 1831), one of the most troublesome fish species
title_short	Molecular detection of giant snakeheads, Channa micropeltes (Cuvier, 1831), one of the most troublesome fish species
title_full	Molecular detection of giant snakeheads, Channa micropeltes (Cuvier, 1831), one of the most troublesome fish species
title_fullStr	Molecular detection of giant snakeheads, Channa micropeltes (Cuvier, 1831), one of the most troublesome fish species
title_full_unstemmed	Molecular detection of giant snakeheads, Channa micropeltes (Cuvier, 1831), one of the most troublesome fish species
title_sort	molecular detection of giant snakeheads, channa micropeltes (cuvier, 1831), one of the most troublesome fish species
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/e2fb7d84301341ecb9b95f193a31f60b
work_keys_str_mv	AT maslinosathanunkul moleculardetectionofgiantsnakeheadschannamicropeltescuvier1831oneofthemosttroublesomefishspecies AT toshifumiminamoto moleculardetectionofgiantsnakeheadschannamicropeltescuvier1831oneofthemosttroublesomefishspecies
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Molecular detection of giant snakeheads, Channa micropeltes (Cuvier, 1831), one of the most troublesome fish species

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