The Effects of Ecological Factors of Salinity and Temperature on Intensive Culture of Acartia tonsa from the Caspian Sea

The present study carried out an in vitro experiment on effects of salinity and temperature on Acartia tonsa life cycle from Caspian Sea. During the experiment, temperature and salinity ranged 25, 27, 29 ± 1 °C and 12‰ and 17‰, respectively within a period of 60 days. Spawning rate was measured using mesh size of 100 µ planktonic net from surface to 10 m depth. Early results show that nauplii arrive to adult stage during 8-10 days. Significant differences in nauplii and copepodites stage were found also in different salinities and temperatures. High survival and spawning rate were also found in 17 ‰ and 29 °C (P