Some species of fish can regulate their salt tolerance easier than others. For instance, many of the species that call the estuary a nursery or breeding ground can adapt to a wide range of salinity (less than 30 ppt). These animals (or plants) are known as euryhaline. Other animals that cannot tolerate a wide range of salinity are known as stenohaline. Some euryhaline species include striped bass, mummuichug, puffer, shad, herring, and sturgeon.
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