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%.

Showing 1–7 of 7

Anoptichthys jordani

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

Anguilla rostrata

The body is elongated and snake-like, with a pointed head and many teeth. It is covered …

Anguilla dieffenbachii

The New Zealand longfin eel possesses a long, slender body with a large mouth filled with …

Oncorhynchus mykiss

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

Acipenser fulvescens

Lake sturgeon are somewhat torpedo-shaped, and the upper lobe of the caudal fin is longer than …

Acipenser medirostris

Sturgeon and paddlefish, best known for their black caviar, belong to the order Acipenseriformes, but at …

Oncorhynchus gilae

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