I never saw this in print but various speakers over the years have tried to rationalize it by suggesting that various water based organisms can adapt to varying levels of salinit. They cite fish like salmon that go from salt to fresh water at different stages of their life.
This is of course stupid and ignores the countless species that are extremly sensative to such changes, that would have died quickly and had no oportunity to reproduce and be alive today.
I appreciate the comment above referancing the tenth plauge in egypt. It dosent make sense to flood the earth when you have billions of angels coild have easily handled matters. Add to the tenth plauge accounts like the angel that slew 185,000 on behalf of hezikia.... but then that dosent help ancient people explain the wrath of god for flooding them.