Most species live in extreme environments; for example, several species of Chlamydogobius are found in the water that emerges from geothermal springs, such as the Dalhousie goby, found in the waters around Dalhousie Springs.
There are a number of unique species of fish that live in the waters around Dalhousie Springs, such as the Dalhousie catfish (Neosilurus gloveri), the Dalhousie hardyhead (Craterocephalus dalhousiensis) and the Dalhousie goby (Chlamydogobius gloveri).