Interactions between the Neotropical otter (Lontra longicaudis) and gillnet fishery in the southern Brazilian coast

► We interviewed two Brazilian fishery communities about interactions with otters. ► Most of the fishermen have negative perception about the species. ► We detected high frequency of interactions between Neotropical otter and fishermen. ► The fishery activity was considered a potential threat to the otters in the study area. ► We suggest changes in management of the fishery in order to minimize the conflict.