Laboratory Observations on the Influence of Temperature and Salinity on Development of the Eggs and Growth of the Larvae of Solea solea

Eggs of the sole Solea solea (L.) were incubated at different constant temperatures (10 ", 13 ", 16 ", 19 ", 22 "C) and salinities (10, 20, 30,40, 50 O h ) ; the larvae were reared at the same temperatures but at one salinity (30 S). High survival and normal development to hatching were observed at temperatures from 10 " to 16 'C and salinities from 20 Olm to 40 O/W S. The growth rate increased with increasing size of the larvae and also increased with the rearing temperature to a maximum at 22 "C. Some environmental factors which may influence the survival of sole eggs and larvae in the sea are discussed.