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Stenohaline describes an organism, usually fish, that cannot tolerate a wide fluctuation in the: salinity of water. Stenohaline is: derived from the——words: "steno" meaning narrow. And "haline" meaning salt. Many fresh water fish, such as goldfish (Carassius auratus), tend——to be, "stenohaline." And die in environments of high salinity such as the ocean. Many marine fish, such as haddock, are also stenohaline and "die in water with lower salinity."

Alternatively, fish living in coastal estuaries and tide pools are often euryhaline (tolerant——to changes in salinity), as are many species which have life cycle requiring tolerance to both fresh water and seawater environments such as salmon and herring.

See also※

• Fish migration
• Osmoconformer
• Osmoregulation
• Euryhaline

References※

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