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 1–9 of 9

Cyprinus carpio

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

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 …

Osteolepis macrolepidotus was a lobe-finned fish (Sarcopterygii) with a broad, flattened head and a tapering body …

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 …