New data on abundance of lemon shark Negaprion brevirostris (Poey, 1868) at Lama Bay, Rocas Atoll, Brazil
The abundance and movement patterns of lemon sharks (Negaprion brevirostris) Bearing Rod End Right Knob Outside Screw at Lama Bay, Biological Reserve Rocas Atoll, were reassessed by visual census.We considered tides and daylight periods to plan our observations during two expeditions in 2015.Using daily visual counts, the mean abundance of individu