DETECTING FISHERIES-INDUCED LIFE-HISTORY EVOLUTION: AN OVERVIEW OF THE REACTION-NORM APPROACH.

The article presents a study on detecting the fisheries-induced life-history evolution. It focuses on the practical aspects of reaction-norm analysis of fisheries-caused evolution. There are two research challenges which include the phenotypic changes in fish and do not involve genetic change because the life-history traits are phenotypically plastic and of the fishing acts as a factor of contemporary evolution. It describes the unwinding of genetic and plastic effects without genetic data. It also explains how maturation reaction norms help unwind genetic and plastic changes in age and size of fish at maturation. Life-history theory suggests the changes in traits as the occurrence of fisheries-induced evolution.