Question

The variability in marine salinity between habitats does not impact the fish living there

Answer 1

The answer is false.
The variability in marine salinity between habitats does impact the fish living there.
I hope this helps.

Answer 2

The variability in marine salinity between habitats will have an impact on the fish living there as the change in the salt level can affect fish life cycle. It depends on the salt tolerance levels of fish. Fishes which adapt to the change salt conditions will survive.