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

2011; Sociedade Brasileira de Carcinologia; Volume: 19; Issue: 1 Linguagem: Inglês

10.1590/s0104-64972011000100009

2358-2936

João Alberto Farinelli Pantaleão, Rafael Augusto Gregati, Fabiano Gazzi Taddei, Rogério Caetano da Costa,

Aquaculture Nutrition and Growth

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.