Navigating the salinity gradient: Individual variation in habitat use and migration of European eel revealed by otolith microchemistry
By analyzing otolith microchemistry from over 3,600 European eels, this study reveals high individual variation in habitat use along a salinity gradient, identifying distinct life-history strategies including coastal residency and migration, which underscores the critical need to incorporate coastal habitats into conservation and population management efforts for this critically endangered species.