William Ronald said:Also, considering the role of magic on Oerth, it could be there are some gates from the Nyr Dyv to the Ocean. The fabled Islands of Woe were in the Nyr Dyv. Possibly an enterprising band of sahuaghin were able to find an old gate in one of Oerth's oceans and gain access to the Nyr Dyv. (Possibly the sahuaghin could arrange to have some sharks that can tolerate fresh water come with them.)
fafhrd said:The gate could even serve as a sort of salt water spring allowing heavily saline dependent creatures to thrive near the gate and only make the occasional foray into the fresher areas for food and raids. It might be a convenient explanation as to why the sahuagin haven't presented as large a problem as they might otherwise. Of course, over time the salinity balance could change and then, who knows....
Tinner said:Not really.
By the RAW creatures make no distinction between fresh and salt water.
Emirikol said:What is "RAW"?
jh