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Some yellow perch fisheries have been affected by intense harvesting, and commercial and recreational harvest rates often are regulated by management agencies. In most aquatic systems, yellow perch are an important prey source for larger, piscivorous species, and many fishing lures are designed to resemble yellow perch. [citation needed]
The family contains more than 200 species in 11 genera. The perches and their relatives are in this family; well-known species include the walleye, sauger, ruffe, and three species of perch. However, small fish known as darters are also a part of this family.
Perch have a long and round body shape which allows for fast swimming in the water. True perch have "rough" or ctenoid scales. Perch have paired pectoral and pelvic fins, and two dorsal fins, the first one spiny and the second soft. These two fins can be separate or joined. [6]
The protection of 30% of Earth's surfaces by 2030 may encompass freshwater habitat and help protect these threatened species. [8] There is an increasing trend in freshwater fish for local taxonomic, functional, and phylogenetic richness in more than half of the world's rivers. [8]
Common names of fish can refer to a single species; to an entire group of species, such as a genus or family; or to multiple unrelated species or groups.Ambiguous common names are accompanied by their possible meanings.
The energy content of the trout-perch was 4795 joules, whereas yellow perch and round goby energy content were lower; 4662 joules and 3740 joules respectively. [ clarification needed ] [ citation needed ] These findings are the main reason, scientists believe the trout-perch is an important source of food for other species in their habitat.
The golden perch (Macquaria ambigua) is a medium-sized, yellow or gold-coloured species of Australian freshwater fish found primarily in the Murray-Darling River system, though a subspecies is found in the Lake Eyre-Cooper Creek system, and another subspecies, suspected to be ancestral to all other populations, is found in the Fitzroy River system in Queensland. [3]
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