1. A reference to organisms that are capable of enduring only slight variations in salt concentrations: Stenohaline fish are those capable of tolerating only low densities of salt in ocean water.
2. Concerning living things that are limited to or able to live only within a narrow range of saltwater concentrations: Some stenohaline organisms must continually migrate to other water masses when the salinity level fluctuates.
3. Concerning organisms that are only able to live in water of very little gradation in salinity: Goldfish are fresh water fish and are inclined to be stenohaline and would die in an ocean because of its high salinity.