Balkhash perch
Perca schrenkii
The closest relative is the European perch (Perca fluviatilis), from which the Balkhash perch diverged approximately …
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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Perca schrenkii
The closest relative is the European perch (Perca fluviatilis), from which the Balkhash perch diverged approximately …
Ictalurus furcatus
Blue catfish are usually bluish-grey or slate-blue, without spots or other markings, although they can be …
Ictalurus punctatus
The body is bare, elongated, slender and compressed at the rear. The caudal fin is long …
Ictalurus punctatus
Most catfish have no scales, but some are covered with heavy scales. They are characterised by …
Perca fluviatilis
The European perch has a laterally compressed body covered with dense, small ctenoid scales. It has …
Perca flavescens
Unlike the white perch, which is actually a temperate perch, the yellow perch is a true …