Open AccessRegistro da tilápia-do-nilo no Rio Mandira, Cananéia, Estado de São Paulo
Author(s) -
Francine Côa,
Aline Maria Zigiotto de Medeiros,
Edison Barbieri
Publication year - 2017
Publication title -
boletim do instituto de pesca
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.262
H-Index - 15
eISSN - 1678-2305
pISSN - 0046-9939
DOI - 10.20950/1678-2305.2017v43n1p87
Subject(s) - humanities , ichthyology , biology , geography , forestry , fish <actinopterygii> , fishery , art
The present short communication reports the occurrence of Nile tilapia (Oreochromis niloticus) in the Mandira River, in the extractive reserve in the Cananéia estuary, São Paulo State. In May 2014, using dip nets, five specimens of O. niloticus were collected in the estuary, with length ranging from 1.4 to 2.5 cm and weight between 0.8 and 2.3 g. Samplings performed in July indicated the presence of additional four specimens of O. niloticus in other stretches of the same river. The occurrence of alien species in conservation areas has high ecological importance, as they can cause environmental and biodiversity alterations. In Brazil, the introduction of alien species is usually related to economic activities, such as the Nile tilapia aquaculture.