Relevamiento lntegral de la Biota en la Cuenca Alta del BermejoMEJO (SALTA,

ANTELO, C; MARIGLIANO, N.; ROMERO, F.; CANCINO, F.; PERALTA, M.; BRUSQUETTI, F.; RAMALLO, G.; PONSSA, M. L.; MIRANDE, M.; AGUILERA, G.; BULACIO.; & SLANIS, A.

Tafi del Valle, Tucuman, Argentina

Jornada; XXIV Jornadas Cientificas de la Asociacion de Biologia de Tucuman; 2007

Asociacion de Biologia de Tucuman

In the upper Rio Bermejo basin, the ecosystems are dete-riorated due to agricultural and oil exploitation, and are also endangered by planning of projects of great environmental impact as the construction of hydroelectric dams. It is neces-sary to know the involved resources, by means of exhaustive inventories and monitories, and to divulgate the obtained information to prevent future damages to ecosystems. The objective of this work is to give an integral report of the biota in this basin and its marginal areas during the annual dry season. The sampling was carried out in Rio Grande, Tarija-Bermejo basin, from Madrejones to Ramos (Dpto. San Martin, Salta, Argentina) during September, 2005. A total of 106 species of invertebrates and insects, 5 of nematode parasites, 27 of fishes, 5 of amphibians and reptilians, 118 of birds, 4 of mammals and 70 genus of vascular plants, were record. The results revealed that the biodiversity is smaller than the regis-tered for other sectors of Yungas. In Madrejones, where the vegetation is relatively conserved, we found a great richness in all groups. This preliminary inventory constitutes the first necessary step to implement monitory, protection and sustainable handling plans for this border area.