USE OF QUANTITATIVE ENVIRONMENTAL DNA METABARCODING FOR BASIN-WIDE FISH BIODIVERSITY EVALUATION

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  • 環境DNA定量メタバーコーディング法を用いた流域網羅的な魚類多様性評価

Abstract

<p> In this study, we compared the fish biodiversity patterns of the two different river basins (the Takatsu and Takahashi rivers) in Western Japan, using quantitative environmental DNA metabarcoding. Our results show that the alpha diversity (species richness and Simpson’s diversity index) of the Takatsu River tended to be higher than that of the Takahashi River. The beta diversity of the Takatsu River also tended to be higher than that of the Takahashi River, suggesting that the Takatsu River could have more variety of fish assemblages along the longitudinal gradient. Finally, on the gamma diversity, the species richness of the Takahashi River was higher than that of the Takatsu River, but Simpson’s diversity index of the Takatsu River was slightly higher than that of the Takahashi River.</p>

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