Freshwater

Freshwater fish spend part or all of their lives in fresh water, such as rivers and lakes, with a salinity of less than 1.05%.

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Anoptichthys jordani

Astyanax jordani is very close to A. mexicanus and their taxonomic affiliation is controversial. Some consider …

Oncorhynchus mykiss

Steelhead are usually slender and streamlined. The dorsal coloration is mostly blue-green with an olive hue, …

Oncorhynchus gilae

The Gila trout, a member of the Salmonidae family, is an olive to copper-colored fish with …