Fisheries Management of the European Catfish Silurus glanis Is Strongly Correlated to the Management of Non-Native Fish Species (Common Carp Cyprinus carpio, Rainbow Trout Oncorhynchus mykiss, and Grass Carp Ctenopharyngodon idella)

Intensive multi-species fish stocking management is a popular yield enhancement tool that supposedly leads to elevated yields in recreational angling. This study aimed analyze the relationships between fisheries of an apex predator and its putative prey. The GAM (generalized additive model) was used intensities European catfish non-native species. were obtained from mandatory angling logbooks collected 38,000 individual anglers by Czech Fishing Union on 176 fishing sites during years 2005–2017 central Bohemia Prague (the Republic). Our results show targeted species positively correlated their yields. However, intensive negatively fishes. Other factors strongly include effort, size fishery, catfish. In conclusion, significant relationship found suggest should not be intensively stocked same rivers as