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Revista de biología marina y oceanografía

On-line version ISSN 0718-1957

Abstract

ABDO-DE LA PARRA, Ma. Isabel et al. Effects of temperature and salinity on the egg incubation of bullseye puffer fish Sphoeroides annulatus. Rev. biol. mar. oceanogr. [online]. 2012, vol.47, n.1, pp.147-153. ISSN 0718-1957.  http://dx.doi.org/10.4067/S0718-19572012000100014.

The effects of different water temperatures (22, 25, 28 and 31ºC) and salinities between 0 and 60 psu (with intervals of 5 psu) on egg incubation of the bullseye puffer (Sphoeroides annulatus) were evaluated in this study. The embryos could not develop at 22ºC and the highest hatching rate for normal larvae was observed at 28ºC. At 0, 50, 55 and 60 psu larvae were unable to develop. Highest hatching rates were obtained at 25, 30 and 35 psu. It was concluded that water temperature and salinity affects the incubation period, embryo development stage and larval survival of the bullseye puffer.

Keywords : Embryo development; period incubation; hatch; deformed larvae.

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