2023
DOI: 10.1590/2675-2824071.22089altc
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New data on abundance of lemon shark Negaprion brevirostris (Poey, 1868) at Lama Bay, Rocas Atoll, Brazil

Ana Laura Tribst Corrêa,
Dráusio Pinheiro Véras,
June Ferraz Dias

Abstract: The abundance and movement patterns of lemon sharks (Negaprion brevirostris) 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 individuals was 29 in austral summer (maximum 35) and 31 in winter (maximum 41). The results indicated that the local lemon shark population might have recovered after 18 years of a substantial drop in mean abund… Show more

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