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 …
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 …
Pygocentrus piraya
The piraya has a laterally compressed, roughly circular profile typical of piranhas. A distinctive feature is …
Pygocentrus nattereri
The red-bellied piranha has a short, deep body shape. Its cross-section is compressed.All piranhas have large …