High water salinity spells doom for sichel larvae survival and growth.
The researchers studied how different levels of salt in water affect the survival and growth of sichel fish embryos and larvae in a controlled environment. They found that higher salt levels in the water led to shorter incubation times for the eggs. The larvae had the best survival rates in water with a salt level of 3 parts per thousand (ppt) and in freshwater. Larvae in water with 12 and 15 ppt salt levels did not survive. The larvae grew the most in water with 3 ppt salt. The worst survival rates were seen in water with 9 ppt salt. Overall, water with 12 and 15 ppt salt levels was deadly for both embryos and larvae of the sichel fish.