First use of baited remote underwater video stations to assess fish diversity in the Metropolitan Region of Recife, Northeastern Brazil

Introduction: Video techniques are used worldwide to study marine communities. As elsewhere, the use of remote underwater videos has recently increased in Brazil and there is a need for information about their advantages, disadvantages, reliability tropical habitats. Objective: To evaluate baited video stations (BRUVS) fish diversity research habitat. Methods: We record fishes relationship with habitat type, visibility depth, 79 random sites Metropolitan Region Recife, Northeastern (11 days November 2017). Results: recorded 3 286 individuals (65 taxa, 29 families) along 25 km section shoreline, 10.2 28.6 m depth. The Clupeidae dominated numerically, followed by Haemulidae, Carangidae, Lutjanidae; species, Haemulon aurolineatum, Ophistonema oglinum, steindachneri, Lutjanus synagris Caranx crysos. highest mean number species was detected over sediment close shipwrecks, but we found no differences among between types. More were observed at depth 20-25 2-3 visibility, within 4-5 m. Conclusions: recording seemed be valid method, indicated that —besides being relatively diverse— local community few small medium-sized mesopredators, top predators.