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Anais da Academia Brasileira de Ciências
versão impressa ISSN 0001-3765
MACIEL, Cristiana R et al. Occurrence of the Indo-Pacific freshwater prawn Macrobrachium equidens Dana 1852 (Decapoda, Palaemonidae) on the coast of Brazilian Amazonia, with notes on its reproductive biology. An. Acad. Bras. Ciênc. [online]. 2011, vol.83, n.2, pp. 533-544. ISSN 0001-3765. http://dx.doi.org/10.1590/S0001-37652011000200013.
The freshwater prawn Macrobrachium equidens, which is native species of the Indo-Pacific Region, was recorded for the first time on the Amazon coast of Brazil. This species was found to inhabit the same environment as two native Macrobrachium species, M. amazonicum and M. acanthurus, and is morphologically very similar to the latter. The identification of the species was confirmed by the genetic analysis of sequences of the mitochondrial Cytochrome Oxidase (COI) gene. A detailed description of the morphological features and reproductive biology of M. equidens in this new environment is presented.
Palavras-chave : crustacean; Caeté Estuary; invasive species; mitochondrial COI gene; reproductive biology.