Abstract
We report the first record of two teleost species from two archipelagos in the western equatorial Atlantic. We recorded the occurrence of Cantherhines pullus (Ranzani, 1842) (Monacanthidae, Tetraodontiformes) from the Fernando de Noronha Archipelago, a group of volcanic islands 345 km off the northeastern coast of Brazil. We also report the first regional record of Hemiramphus brasiliensis (Linnaeus, 1758) (Hemiramphidae, Beloniformes) from the Saint Peter and Saint Paul’s Archipelago, which is a small and isolated group of rocky islands 520 km from the Fernando de Noronha Archipelago on the Mid-Atlantic Ridge.
Highlights
The inventory of the ichthyofauna of oceanic island environments is of considerable importance in various fields of knowledge, including evolution and biogeography, and has direct relevance to conservation (Pinheiro et al 2018)
The Fernando de Noronha Archipelago (FNA) comprises an isolated group of volcanic islands located in the western equatorial Atlantic Ocean, ~350 km off the northeastern coast of Brazil (03°50′S, 032°25′W; Fig. 1)
The existence of an ichthyofaunal species shared between both sides of the Atlantic and the Saint Paul’s Archipelago (SPSPA) is likely a result of the dispersal, colonization, and larval settlement capacity of some species (Feitoza et al 2003)
Summary
The inventory of the ichthyofauna of oceanic island environments is of considerable importance in various fields of knowledge, including evolution and biogeography, and has direct relevance to conservation (Pinheiro et al 2018). The Fernando de Noronha Archipelago (FNA) comprises an isolated group of volcanic islands located in the western equatorial Atlantic Ocean, ~350 km off the northeastern coast of Brazil (03°50′S, 032°25′W; Fig. 1). This insular region is under the influence of the South Equatorial Current, with an average water surface temperature of 26 °C and a tropical oceanic climate characterized by a rainy season during February–July and a dry season during the rest of the year (Maida and Ferreira 1997). Soares et al | Two new fish records in Brazilian oceanic islands present study adds two unreported fish to the species inventories for these archipelagos, providing data for a better assessment of the biogeographic patterns of the oceanic islands of the western equatorial Atlantic
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