Yellow Perch, Perca flavescens
نویسنده
چکیده
range, yellow perch, Perca flavescens, are viewed variously as a sport fish, a valuable food fish, an important forage species, or a nuisance trash fish with little commercial or sport value. Attitudes toward yellow perch vary with its relative availability and with historical regional preferences. In much of the midwestern and central Atlantic areas of the United States and in central Canada, however, yellow perch are highly valued as food fish. Demand for this fish in the vicinity of the Great Lakes is particularly high, but commercial harvest of wild yellow perch has declined since the mid 20th century (Fig.1). Annual harvests from all the Great Lakes averaged more than 23 million pounds from 1950 to 1970, but just 5.75 million pounds from 1990 to 2000. The commercial harvest of yellow perch is prohibited in some areas because of low populations and closes periodically in other areas because of concerns about contaminants. Beginning in the 1970s, high market values and declining commercial catches prompted widespread interest in commercial culture of this species, primarily in midwestern states. Yellow perch flesh is very high quality, with a firm, flaky texture and mild flavor. The meat has less fat (<1 percent) than other popular cultured food fish, and also fewer calories per 100-gram serving (91). Yet it is high in protein (19.5 percent) and contains a modest level of omega-3 fatty acids (0.3 percent). The lower fat content of yellow perch can result in a longer shelf life. Yellow perch have a variety of regional names, including lake perch, ringed perch, raccoon perch, Ned, yellow Ned, redfin and redfin perch. The fish are long and slender, gold to brassy green on the dorsal surface and sides, and usually have six to eight vertical black bars on each side (Fig. 2). There are two dorsal fins, with the first supported by sharp spines and the second by VI PR July 2006 SRAC Publication No. 7204
منابع مشابه
On-farm tests show higher production, growth rate and survival of improved yellow perch
in the Proceedings of the World Aquaculture Society Conference. Page 1142. February 22-25, 2013. Nashville. Yellow perch Perca flavescens is a particularly important aquacultural and ecological species in the Great Lakes Region (GLR)and the Midwest USA. The demand for this species has remained very high in the GLR. Due to the relatively slow growth of currently cultured populations of yellow pe...
متن کاملCHEMICAL, PHYSICAL AND SENSORIAL DIFFERENCES BETWEEN FARMED YELLOW PERCH (Perca flavescens) FED DIETS VARYING IN PROTEIN CONCENTRATION
متن کامل
Evaluation of Regression Approaches for Predicting Yellow Perch (Perca flavescens) Recreational Harvest in Ohio Waters of Lake Erie
متن کامل
Influence of lake chemistry and fish age on cadmium, copper, and zinc concentrations in various organs of indigenous yellow perch (Perca flavescens)1
Concentrations of Cd, Cu, and Zn were determined in various organs of juvenile yellow perch (Perca flavescens) collected from eight lakes located along a metal concentration gradient. Metal exposure was evaluated on the basis of the free ambient Cd2+, Cu2+, Zn2+, and Ca2+ concentrations, as estimated from chemical equilibrium simulations using the ambient water chemistry data. Based on regressi...
متن کاملEffects of turbidity and prey density on the foraging success of age 0 year yellow perch Perca flavescens.
Laboratory experiments were conducted to determine how larval and juvenile yellow perch Perca flavescens respond to changes in prey density when exposed to different levels and types of turbidity (phytoplanktonic or sedimentary). Across prey densities, consumption by P. flavescens tended to be less in phytoplanktonic turbidity compared with sedimentary turbidity. For larvae, this effect was dep...
متن کاملNOTE Age-0 and Age-1 Yellow Perch Diet in Southeastern Lake Michigan
Age-0 yellow perch (Perca flavescens) were collected during October 1998 and age-1 yellow perch were collected during June 1999 from southeastern Lake Michigan off St. Joseph and Muskegon, Michigan, to evaluate diets relative to recent ecosystem changes. Size range of yellow perch examined was 72 to 118 mm. In October at a 15-m site off Muskegon, both Gammarus spp. and Isopoda were found in nea...
متن کامل