A.J. Conides, A.R. Parpoura, G. Fotis-1997
Journal of Aquaculture in the Tropics, 12: 297-303
Abstract:
Juveniles of gilthead sea bream, Sparus aurata L. with individual weight 1.87 g, were reared under salinities 8, 18, 28 and 38 ppt in order to examine the effects of salinity on growth, feeding, conversion and maintenance of the fry. The results showed that better daily growth rates, food conversion efficiencies and survival were obtained for fish growing at 28%. Statistically, salinity values above 28 ppt do no affect daily growth rates and daily food consumption significantly. Maintenance requirement decreases linearly with increasing salinity. In particular, 1 ppt decrease of salinity causes an increase of 0.014 (% body weight/day) of the daily maintenance requirement which corresponds to 2.8 x 10^(-4) g of feed/fish/day or 0.983 cal of energy fish/day).
(National Centre for Marine Research, Athens, Greece)