Hydropower‐related damage to fish remains a great challenge, making objective monitoring of turbine‐related fish injury a necessity. The catch of fish at turbine outlets is currently realised by net fishing, but potential catch‐related injuries are largely unknown. Catch efficiency and fish‐friendliness in relation to fish handling, exposure time, floating debris and fish biomass of four fish recovery installations were assess...

This study compares the effectiveness and representativeness of electrofishing, snorkelling, seining, baited lift netting, multi‐mesh gillnetting, baited fish traps, fyke netting, angling and longline fishing, considering three typical lentic flood‐plain habitats at different times of day. Electrofishing was by far the most effective method yielding highest species richness, species trait representation and catch per unit of e...

Knowledge on the extent and mechanisms of fish damage caused by hydropower facilities is important for their ecological improvement. Herein, a novel field‐based fish injury assessment protocol is proposed that includes vitality and four general health criteria, as well as nine lethal and sub‐lethal injury types across 18 body parts. The protocol was validated using 3,087 specimens from four species of hatchery‐reared fish, as...

In this study, a comparison of point abundance sampling ( PAS ) electrofishing, angling with two different hook sizes and trap‐based fishing was performed in a non‐wadeable river to analyse their effects on catch per unit effort ( CPUE ) and population characteristics of invasive round goby Neogobius melanostomus . PAS electrofishing was identified as the most effective (mean ± s.e . CPUE = 57 ± 4 N. melanostomus min −1 ) and...