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 1–11 of 11

Salmo oxianus

The Amu-Darya trout, in its external appearance, is typical of salmonid fish but has its own …

Cyprinus carpio

The common carp has a thick, moderately elongated body. It has a short head, a rounded …

Salvelinus andriashevi

The Chukot char is a relative of the Pacific whitespotted char (Salvelinus leacomaenis). Its body is …

Cynolebias constanciae

The body of Constancia's seasonal killifish (Cynolebias constanciae) is elongate and slightly laterally compressed.

Salvelinus malma, Salvelinus confluentus

These two char species, as well as Arctic char, are difficult to distinguish by appearance alone, …

Oreochromis mossambicus

The best known member of the tilapia group is the Mozambique tilapia (Oreochromis mossambicus), which is …

Stenodus nelma

Nelma has a spindle-shaped body that is slightly flattened on the sides. Its mouth is large, …

Betta splendens

The body of the Siamese fighting fish is oval, flattened at the sides and elongated in …

Acipenser oxyrinchus

The Atlantic sturgeon is dark brown or olive green with a white belly. The head is …

Scaphirhynchus platorinchus

The shovelnose sturgeon has a broad, flat head with an elongated shovel-like snout. There are four …

Acipenser transmontanus

The adult white sturgeon has a moderately blunt snout, spines closer to the tip of the …