Morphology of the first larval stage of Macrobrachium brasiliense (Heller, 1868) (Caridea: Palaemonidae)

• Autor(a) principal: Pantaleão, João Alberto Farinelli [UNESP]
• Data de Publicação: 2011
• Outros Autores: Gregati, Rafael Augusto [UNESP], Taddei, Fabiano Gazzi, Costa, Rogério Caetano da [UNESP]
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.1590/S0104-64972011000100009; http://hdl.handle.net/11449/130631
• topic: Palaemonoidea; Larval development; First zoea; Abbreviated development; Larval morphology

In this paper, we describe and illustrate the morphology of the first larval stage of the prawn Macrobrachium brasiliense. Two ovigerous females were obtained in a stream environment, which belongs to Paraná River Basin, Southeastern of Brazil, and were maintained in laboratory until the time of hatching. The newly-hatched larva bears very advance morphological features, with benthic habits. They had sessile eyes and all appendages, except for the uropods; however, most of the appendages were not fully formed. The description given here is compared with the first larval stage of Macrobrachium species with abbreviated larval development from other localities.