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 1–15 of 15

Dallia pectoralis

The Alaska blackfish can be identified by its short, flattened snout, the posterior position of the …

Anoptichthys jordani

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

Morone mississippiensis

The body shape of the yellow bass is very similar to that of the white bass: …

Ictiobus cyprinellus

The stout and deep-bodied bigmouth buffalo has a large head with a large, distinctly oblique and …

Salvelinus fontinalus

The charr group includes only one species that is actually called 'charr' in English, Salvelinus alpinus, …

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 …

Salvelinus fontinalis

Brook trout have such unique coloration and patterns that they are rarely confused with other fish, …

Oncorhynchus gilae

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

Oncorhynchus mykiss

Rainbow trout have the typical elongated and streamlined shape of salmonids, although body shape and coloration …

Oncorhynchus mykiss

Among the most popular and well-known species of fish called trout are brook trout, brown trout, …

Coregonus clupeaformis

A slender, elongated species, the lake whitefish is silvery white with an olive or pale greenish-brown …