1986/05/01 by I. G. Cowx, N. M. Broughton · 1 citation
Environmental Science · Agricultural and Biological Sciences · #Fish Ecology and Management Studies #Hydrology and Sediment Transport Processes #Fish Biology and Ecology Studies #Fishery #Perch #Biology #Fishing #Competition (biology) #Fish <Actinopterygii> #Interspecific competition #Ecology
paper · doi:10.1111/j.1095-8649.1986.tb05197.x
openalex publication_date 1986/05/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/05/21
Data on anglers' catches on the River Trent were collected for the seasons 1969/70 to 1983/84 using postal questionnaires. During this period 60.4t of fish were caught during a total fishing effort of 526 871 man‐h or 60.15 man‐years, and more than 20 species of fish were recorded. The percentage of anglers making a catch (70–80%) and the catch per unit effort, mean 114.7g man‐h −1 , were comparable with those reported for other waters. Roach and gudgeon were the most commonly captured species with chub, bleak, bream, eels and dace also forming major components of anglers' catches. Since 1969 chub, bream, eels and perch have made an increasingly greater contribution to catches, coupled with a decline in numbers of roach and dace. It is suggested that improvement in water quality and its implication on interspecific competition was the most likely cause of the changes.