Tocantins River

diastatos was recently described (Dagosta et al., 2014), with its occurrence for the Sao Francisco River basin recorded only in the Grande River sub-basin, but this species also occurs in the middle and high Tocantins River basin.

On account of its strategic importance, reference is made not only by the growing demand for water, but also by the regulatory function of the flow of the affluents of the middle left margin Sao Francisco river and the power of the right margin tributary headwaters of the Tocantins river, on the western edge of the Serra Geral from Goias.

Auchenipterus nuchalis Spix and Agassiz, 1829, the species that is the subject of this study, has a distribution restricted to South America, mostly in the Amazon River basin, lower Tocantins River and in lower courses of some rivers from Suriname, French Guiana (Ferraris Jr, 2003; Froese & Pauly, 2016) and others countries from South America.

Tocantins river as an effective barrier to gene flow in Saguinus niger populations.

Previously, the only state in the northeastern region reported with this species was Maranhao, in the Tocantins River (a large tributary of the Amazonas River drainage) (Charalambous et al.

The Serra da Mesa Reservoir is located in the north of Goias State, near the border with the state of Tocantins (Figure 1), and is the main drainage basin of the Tocantins River and four tributaries: the Tocantinzinho, Bagagem, Almas, and Maranhao rivers (Andrade, 2002).

Simpsonichthys inaequipinnatus, a new seasonal Killifish from the Tocantins River basin, Brazil (Cyprinodontiformes, Rivulidae).

Anurans, Northern Tocantins River Basin, states of Tocantins and Maranhao, Brazil.

GDF Suez (EPA: GSZ), a France-based company engaged in production, storage, network transportation, distribution and sale of natural gas, liquefied natural gas (LNG) and electric power, has completed construction of the Sao Salvador hydro-electric plant along the Tocantins River, in northern Brazil.