One new Locality for the endangered species Roughback Whipray Fluvitrygon kittipongi (Vidthayanon &amp; Roberts 2005) (Myliobatiformes: Dasyatidae) in Peninsular Malaysia, based on photographs = UMA NOVA LOCALIDADE PARA A ESPÉCIE AMEAÇADA DE EXTINÇÃO ARRAIA CHICOTE DE DORSO ÁSPERO FLUVITRYGON KITTIPONGI (VIDTHAYANON &amp; ROBERTS 2005) (MYLIOBATIFORMES: DASYATIDAE) NA PENÍNSULA DA MALÁSIA, BASEADO EM FOTOGRAFIAS

Environmental DNA (eDNA) barcoding has emerged as an important non-invasive sampling technique for the detection of rare and endangered species that can be difficult to sample. Our objective was to develop a low-cost eDNA barcoding approach for the detection of an Endangered freshwater stingray species Fluvitrygon kittipongi in a tropical river system in Peninsular Malaysia. We designed a species-specific primer for a fragment of F. kittipongi cytochrome oxidase subunit I mtDNA (244 bp). The effectiveness of this primer to detect the stingray was evaluated using water samples taken from the upper and middle reaches of the Pahang River coupled with social media reports on sightings of F. kittipongi. Five of 14 water samples tested showed positive PCR amplification for the targeted species. These results represent the first successful application of eDNA to detect freshwater stingrays in Malaysia. Using a combination of freshly obtained carcass samples, social media reporting and target species eDNA detection, this study provides formal occurrence records of F. kittipongi in Malaysia in 3 major watersheds: the Perak, Pahang and Kelantan Rivers.

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Environmental DNA approach complements social media reports to detect an endangered freshwater stingray species in the wild

Lim

Then

2022

Endang. Species. Res.

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Abstract: The Roughback Whipray Fluvitrygon kittipongi is a stingray species listed as "Endangered" according to the updated IUCN Red List. Until the year 2021, F. kittipongi was only known from five rivers in

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Environmental DNA approach complements social media reports to detect an endangered freshwater stingray species in the wild

Environmental DNA approach complements social media reports to detect an endangered freshwater stingray species in the wild

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