“…Several putative BGF have been proposed in the literature to explain genetic discontinuities along the Brazilian coast. Chiefly among them, we have: (a) the mouth of major rivers such as the Amazon, São Francisco, Paraguaçu, Jequitinhonha, Doce, and Paraíba do Sul (da Silva, Marceniuk, Sales, & Araripe, 2016;Machado et al, 2017); (b) the split of the South Equatorial Current (SEC) in two opposing boundary currents, giving rise to the southward Brazil Current and the northward North Brazil Current (Bezerra et al, 2018;Cortinhas et al, 2016); (c) the Cabo Frio coastal upwelling system (Cortinhas et al, 2016;Hurtado et al, 2016) and; (d) the Cassino beach, the longest stretch of sandy beach in the world located in southern Brazil between latitudes 29°S and 32°S (Nauer, Gurgel, Ayres-Ostrock, Plastino, & Oliveira, 2019;Trovant et al, 2016). In several phylogeographic studies, genetic discontinuities coincide with these coastal features, allowing researches to identify them as potential BGF (e.g.…”