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Perches
Temporal range: Pliocene–recent
[1]
Yellow perch (Perca flavescens)
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Perciformes
Family: Percidae
Subfamily: Percinae
Rafinesque, 1815
Genus: Perca
Linnaeus, 1758
Type species
Perca fluviatilis
Linnaeus, 1758
Species

Perch is a common name for fish of the genus Perca, freshwater gamefish belonging to the family Percidae. The perch, of which three species occur in different geographical areas, lend their name to a large order of vertebrates: the Perciformes, from the Greek: πέρκη (perke), simply meaning perch, and the Latin forma meaning shape. Many species of freshwater gamefish more or less resemble perch, but belong to different genera. In fact, the exclusively saltwater-dwelling red drum is often referred to as a red perch, though by definition perch are freshwater fish. Though many fish are referred to as perch as a common name, to be considered a true perch, the fish must be of the family Percidae.

The type species for this genus is the European perch, P. fluviatilis.

Species

Most authorities recognize three species within the perch genus:

Anatomy

The general body type of a perch is somewhat long and rounded. True perch have "rough" or ctenoid scales. On the anterior side of the head are the maxilla and lower mandible for the mouth, a pair of nostrils, and two lidless eyes. On the posterior sides are the opercular series, which protect the gills, and the lateral line system, which is sensitive to vibrations in the water. The kidney of the perch runs along the backbone and forms a head, caudal to the gills.[2] 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.

Habitats

Perch are carnivorous fish most commonly found in small ponds, lakes, streams, or rivers. These fish feed on smaller fish, shellfish, or insect larvae, but can be caught with nearly any bait. They commonly spawn during the spring, when the females lay strings of eggs in covered areas such as near branches or underwater plants. These fish are most abundant in clear, weedy lakes that have a muck, sand, or gravel bottom. Perch have a wide distribution throughout the world, and are very plentiful in the Great Lakes, especially Lake Erie.

Fishing

Perch are a popular sport fish species. They are known to put up a fight, and to be good for eating. They can be caught with a variety of methods, including float fishing, lure fishing, and legering. Fly fishing for perch using patterns that imitate small fry or invertebrates can be successful. The record weight for this fish in Britain is 2.81 kg (6 lb 3 oz), the Netherlands 3.05 kg (6 lb 11+12 oz),[3] and in America 2.83 kg (6 lb 4 oz).

Perch grow to around 50 cm (20 in) and 2.3 kg (5 lb) or more, but the most common size caught are around 30 cm (1 ft) and 450 g (1 lb) or less and anything over 40 cm (16 in) and 900 g (2 lb) is considered a prize catch.

See also

References

  1. ^ "Perca Linnaeus 1758 (perch)".
  2. ^ Weatherley, A. H. (1963-03-01). "A Note on the Head Kidney and Kidney of the Perch Perca Fluviatilis (linnaeus), with Special Reference to the Blood Vascular System". Proceedings of the Zoological Society of London. 140 (2): 161–167. doi:10.1111/j.1469-7998.1963.tb01859.x. ISSN 1469-7998.
  3. ^ "Nederlands record baars 56 cm - Bekijk de foto's, lees het vangstverslag!".