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Revista Peruana de Biología
versão On-line ISSN 1727-9933
Resumo
FUENTES, Adelhi S.; MOGOLLON, Anghela V. e REYES, Walter E.. Effects of salinity on embryonic development of Cryphiops caementarius (Crustacea: Palaemonidae) incubated in vitro. Rev. peru biol. [online]. 2010, vol.17, n.2, pp.215-218. ISSN 1727-9933.
The aim of this work was to study the effects of salinity on the development of embryos of Cryphiops caementarius incubated in vitro. We used embryos of early development, from a unique female. The incubators were of 400 mL, with 4 salinity treatments of 0, 10, 20 and 30 , three replicates, and 200 embryos each incubator. The 80% of the water was renewed frequently. The salinities between 0 and 30 did not affect the development of the embryos up to the stage 6. The salinities of 10 and 20 caused delay of the development of the stages 7 and 8; and the salinity of 30 caused death of the stage 7. In freshwater the 70,3% of the embryos survived and larvae were normal; on the other hand in salinity at 10 to 13,5% and 20 only 7,9% achieved larvae hatch but with deformations.
Palavras-chave : Incubation in vitro; embryos; prawn; Cryphiops; Áncash; Peru.