Nursery performance of the pink shrimp Farfantepenaeus paulensis (Crustacea: Decapoda: Penaeidae) postlarvae in different salinities

Autor(es)

Rafael F. Costa ^[1] ; Fanny A. Yasumaru ^[1] ; Daniel Lemos ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Inst Oceanog, Lab Aquicultura Marinha, BR-05508900 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Zoologia; v. 27, n. 3, p. 317-323, 2010-06-00.

Resumo

Nursery performance, development, and RNA:DNA ratio were investigated in Farfantepenaeus paulensis (Pérez-Farfante, 1967) postlarvae acclimated from a salinity of 30‰ to higher (35‰) or lower (16, 22 and 29‰) salinities and reared for 20 days. Overall, higher final weight, yield and growth rate were observed at a salinity of 29‰. RNA:DNA ratio indicated reduced growth potential at a salinity of 35‰. Low salinities resulted in more developed individuals. Thus, early postlarval F. paulensis should not be stocked in salinities higher than that of the original hatchery, otherwise in lower salinities postlarvae should be older and/or have an extended nursery phase. Results may assist in the development of nursery rearing protocols for F. paulensis, an alternative species for aquaculture in subtropical areas. (AU)

• Processo FAPESP: 05/50578-2 - Testando a qualidade de racoes para o cultivo de camaroes marinhos: validacao do metodo in vitro ph-stat por meio de ensaios in vivo de digestibilidade proteica (ezfeed).
• Beneficiário: Daniel Eduardo Lavanholi de Lemos
• Modalidade de apoio: Auxílio à Pesquisa - Regular