Freshwater Fisheries Research Center

Multi-Year eDNA Metabarcoding Reveals Fish Community Dynamics in the Jiangsu Section of the Yangtze River Mainstem Under the Fishing Ban

Environmental DNA (eDNA) metabarcoding is an efficient, non-invasive approach for surveying fish diversity in complex habitats such as large rivers. This study conducted continuous eDNA monitoring along the Jiangsu section of the Yangtze River mainstem from 2022 to 2024 to charac...

Stable-Isotope Differentiation of Mature Ovarian Eggs from Anadromous and Freshwater-Resident Coilia nasus

Anadromous and freshwater-resident Coilia nasus frequently share spawning grounds, yet exhibit distinct feeding habits during migration; therefore, we hypothesized that the isotopic profiles of mature eggs from these two ecotypes would differ. In the present study, a total of 102...

Species-resolved baselines reveal limited diagnostic resolution of aggregate river-fish indicators: evidence from a 16-year lower Yangtze survey

Aggregate catch and biomass are widely used to evaluate river restoration and fishery closures, but their management value depends on whether they resolve changes in the species of concern. We evaluated this diagnostic resolution using a 16-year fixed-station survey (2002–2017; 5...