A fauna de peixes nas bacias do sul do Espírito Santo, Brasil

Abstract

The South Espírito Santo river basins include the Rio Itapemirim basin, the small river basins in Marataízes and a portion of the Rio Itabapoana basin, in Southeast Brazil. Nighty-two geo-referenced sites were sampled: 23 in Itabapoana, 66 in Itapemirim and three in Marataízes. A species list has been prepared, giving habitat details. Seventy-nine species, in 31 families and 11 orders were, reported, 17 species being from marine or brackish-water/estuarine habitats. The great majority of freshwater species belong to the Siluriformes (29 species), followed by the Characiformes (19). Torrential rivers, protected by the Caparaó mountains, display the lowest richness, with only a few species recorded from the highest valleys. On the other hand, in lowland river valleys along the Serra das Torres, an exceptional diversity of stream fishes was observed. Because of the only known population of Trichogenes claviger, a relictual species of Trichomycteridae, in the river Caxixe, this area is highly strategic in planning conservation of the Icthyofauna of the Itapemirim basin. Some species from southern Espírito Santo were described based on material collected on the historic Thayer Expedition, which crossed the region in 1865. Likewise, Oligosarcus acutirostris, Astyanax microschemos and Trichogenes claviger were also described based on fishes from southern Espírito Santo. A high endemism of freshwater species was observed between southern Espírito Santo rivers and lower Paraíba do Sul, suggesting a common history among these rivers.

Fish composition and species richness in eastern South American coastal lagoons: additional support for the freshwater ecoregions of the world

“…Another question that bears on the future of the lagoons included in this study and their species diversity is the fact that most of them are still unprotected and have been subjected to several well‐documented anthropogenic impacts, some of which are: urban development (IDs326, 328 and 352), artificial sandbar opening (IDs329 and 352), water diversion to rice fields (ID334), and eutrophication by aquaculture (ID326) or by domestic sewage (IDs326, 335, 334 and 352). Lagoons Suruaca and Sucuri (ID328) are located in the tablelands, between the Espírito Santo and Bahia states, where the mild relief facilitated human deforestation and introduction of cattle and eucalyptus (Sarmento‐Soares & Martins‐Pinheiro, , ). In the past, the Suruaca Lagoon drained an immense wetland of c .…”

Ficha de Deuterodon janeiroensis

“…Endêmica do Brasil: Sim Deuterodon janeiroensis é conhecida da bacia do rio Paraíba do Sul, rio Ribeira do Iguape e nos riachos costeiros dos estados de Minas Gerais, Espírito Santo, Rio de Janeiro e São Paulo (Mazzoni et al, 2004;Martins & Barrella, 2008;Sarmento-Soares & Martins-Pinheiro, 2013;B.F. Melo, com.…”

Ficha de Dormitator maculatus

“…No Brasil, os registros confirmados de Dormitator maculatus são restritos aos rios costeiros, entre o estado do Ceará e o Rio Grande do Sul (Volcan et al, 2010;Catelani et al, 2014;Sarmento-Soares & Martins-Pinheiro, 2014;Gonçalves & Pérez-Mayorga, 2016;Teixeira et al, 2017;Torres & Torres, 2017).…”