Effect of sudden changes in salinity on different life history stages of the parthenogenetic Indian strain of Artemia from salinas of Thoothukkudi was studied. For the experiment, nine ranges of salinity (30-110 ppt) with an increase of 10 ppt at each range were prepared with 110 ppt as the control. Different life history stages of Artemia were suddenly introduced to lower salinities from 110 ppt and the survival rates were estimated during 5 days. The experiment showed that adults were more susceptible and nauplii more tolerant to sudden decline in salinity supported by significant two way ANOVA values.

Artemia, life history stages, nauplii, effect of salinity