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Concept
Yellow perch
Summary
The yellow perch (Perca flavescens), commonly referred to as perch, striped perch, American perch, American river perch or preacher is a freshwater perciform fish native to much of North America. The yellow perch was described in 1814 by Samuel Latham Mitchill from New York. It is closely related, and morphologically similar to the European perch (Perca fluviatilis); and is sometimes considered a subspecies of its European counterpart. Other common names for yellow perch include American perch, coontail, lake perch, raccoon perch, ring-tail perch, ringed perch, and striped perch.
Latitudinal variability in age, growth rates, and size have been observed among populations of yellow perch, likely resulting from differences in day length and annual water temperatures. In many populations, yellow perch often live 9 to 10 years, with adults generally ranging from in length.
The world record yellow perch (; ) was caught in May 1865 in Bordentown, New Jersey by Dr. C. Abbot. It is the longest-standing record for a freshwater fish in North America.
The yellow perch has an elongate, laterally compressed body with a subterminal mouth and a relatively long but blunt snout which is surpassed in length by the lower jaw. Yellow perch have many fine teeth. Their bodies are rough to the touch because of their ctenoid scales. Like most perches, the yellow perch has two separate dorsal fins. The anterior, or first, dorsal fin contains 12–14 spines while the second has 2–3 spines in its anterior followed by 12–13 soft rays. The anal fin has 2 spines and 7–8 soft rays. The opercula tips are spined, and the anal fin has two spines. The pelvic fins are close together, and the homocercal caudal fin is forked. Seven or eight branchiostegal rays are seen.
The upper part of the head and body varies in colour from bright green through to olive or golden brown. The colour on the upper body extends onto the flanks where it creates a pattern of 6–8 vertical bars over a background of yellow or yellowish green.
Official source
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