Programa de Pós-Graduação em Ciências Biológicas (Biodiversidade Neotropical), Universidade Federal do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil Brazil
Universidade Federal do Estado do Rio de Janeiro (UNIRIO), Laboratório de Ictiologia Teórica e Aplicada (LICTA), Av. Pasteur, 458 – R314A, CEP 22.290-240, Rio de Janeiro, RJ, Brazil. Brazil
Universidade Federal do Estado do Rio de Janeiro (UNIRIO), Laboratório de Ictiologia Teórica e Aplicada (LICTA), Av. Pasteur, 458 – R314A, CEP 22.290-240, Rio de Janeiro, RJ, Brazil. Brazil
universidade Federal do Estado do Rio de Janeiro Brazil
PostDoc at the Departmento of Ecology and Marine Resources, affiliated to the Postgraduation in Neotropical Biodiversity
Universidade Federal do Estado do Rio de Janeiro (UNIRIO), Laboratório de Ictiologia Teórica e Aplicada (LICTA), Av. Pasteur, 458 – R314A, CEP 22.290-240, Rio de Janeiro, RJ, Brazil. Brazil
Rocky reefs are one of the most important biotopes in Guanabara Bay due to their broad distribution and high species diversity. This study aimed to describe the composition and structure of the fish assemblage associated with rocky reefs in Vermelha Beach (RJ/Brazil), an estuarine-marine transitional zone located at the entrance of Guanabara Bay. Fish were surveyed through underwater visual censuses, conducted by snorkeling divers along 10 m2 -linear transects (n = 90). A total of 2.487 fishes were recorded belonging to 29 species in 18 families. Except for Atherinella brasiliensis, all other species are intimately associated with rocky reefs. The present work also stresses the importance of further studies to evaluate the role of periodic influences of estuarine and oceanic waters as structuring factors of the fish assemblages associated with rocky reefs at Vermelha Beach and similar ecosystems.