Question

Stenohaline fishes are

• A. Marine fishes only
• B. Those which tolerate narrow range of salinity
• C. Those which tolerate wide range of salinity
• D. Fresh water fishes only

Answer 1

The correct option is B Those which tolerate narrow range of salinity

B. Those which tolerate narrow range of salinity

Reason: Stenohaline organisms are such species which can only tolerate specific limits of salinities. They can not handle a high amount of changes of salt content in water and the organism's tolerance for salt content depends on the type of species it is e.g. Goldfish (survive under low salinity) and Haddock (survive under high salinity).