Dietary analysis of red swamp crayfish Procambarus clarkii using DNA metabarcoding

We investigated the diet of red swamp crayfish Procambarus clarkii collected in an irrigation canal near Lake Inba-numa using DNA metabarcoding. A total of eight taxon of aquatic and terrestrial invertebrates (Hydroglyphus japonicus, Chironomidae sp.，Aquarius paludum paludum, Armadillidium vulgare,...

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Bibliographic Details
Published inIzunuma-Uchinuma Wetland Researches Vol. 18; pp. 17 - 23
Main Authors Hiraoka, Retori, Yamasaki, Takashi
Format Journal Article
LanguageJapanese
Published The Miyagi Prefectural Izunuma-Uchinuma Environmental Foundation 01.07.2024
公益財団法人 宮城県伊豆沼・内沼環境保全財団
Subjects
gastrointestinal contents
Inba-numa
mitochondrial DNA
NGS
ミトコンドリアDNA
印旛沼
次世代シーケンサー
胃腸内容物
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ISSN1881-9559
2424-2101
DOI10.20745/izu.18.0_17

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Summary:We investigated the diet of red swamp crayfish Procambarus clarkii collected in an irrigation canal near Lake Inba-numa using DNA metabarcoding. A total of eight taxon of aquatic and terrestrial invertebrates (Hydroglyphus japonicus, Chironomidae sp.，Aquarius paludum paludum, Armadillidium vulgare, Tetramorium sp., Heterocypris incongruens, Orientogalba ollula，Plumatellidae sp.) were detected, including animals for which predation by this species has not been clearly documented. The detections of the invertebrate DNA may result not only from predation by the crayfish but also from their consumption of carcasses. However, our results suggest the broad dietary range of P. clarkii.
ISSN:1881-9559
2424-2101
DOI:10.20745/izu.18.0_17