We examined the eŠectiveness of removal by angling in order to control the population size of the invasive exotic bluegill in Hananoko Lake, Gifu, Japan. A total of 15,966 individuals were caught by angling. Estimates based on a mark-recapture method revealed that the population size was reduced from 24,231 to 10,092 individuals over 15 months of population control. The change in the size distribution suggested that removal by angling not only reduced the number of potentially mature individuals but also decreased the recruitment of juvenileˆsh. This evidence indicates that removal by angling could control the population size of the bluegill, although a complete extermination by angling alone may be di‹cult.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.