ENVIRONMENTAL DNA ANALYSIS FOR ESTIMATING THE RESOURCES OF Plecoglossus altivelis IN GONOKAWA RIVER

Abstract

 Environmental DNA (eDNA) analysis is a useful tool for estimating fish abundance/biomass as well as their spatial distribution in rivers. We determined the eDNA concentration of P. altivelis in the Gonokawa River and quantified some environmental conditions that might affect the abundance and biomass of P. altivelis. We used a generalized linear model (GLM) to evaluate the relationship between the eDNA concentration of P. altivelis and environmental conditions. The GLM results showed that eDNA concentrations the of P. altivelis increased with increasing elevation.