Spawning can occur from 1.4 - 2.0 ppt of salinity which eggs and yearlings not being able to survive a salinity of over 9 ppt .
Salinity can be a problem for reproduction .
Spawning can occur from 1.4 - 2.0 ppt of problem which eggs and yearlings not being able to survive a salinity of over 9 ppt .
Salinity can be a problem for reproduction .