Eurasian Perch

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Eurasian Perch

 

(Perca fluviatilis), a fish of the family Percidae of the order Perciformes. The Eurasian perch is 40 to 50 cm long and weighs up to 2 kg. It is commonly found in freshwater lakes, rivers, ponds, and reservoirs in Europe (except for the Iberian Peninsula, Italy, and northern Scandinavia), northern Asia, and the eastern part of North America. The fish is encountered in fresh waters throughout the USSR except for Lake Balkhash and east of the Kolyma River. It has been acclimatized to the headwaters of the Amur River.

In large lakes and reservoirs, perch form two ecological morphae: the small morpha, which lives near the coast, and the large morpha, which dwells in open areas. The small morpha feeds primarily on plankton and insect larvae; the large morpha is a predator. Spawning occurs in early spring, when the water temperature is between 7° and 15°C. The roe are deposited in the form of a hollow gelatinous tube, which measures 1 m or longer in length. Perch have local economic importance.

REFERENCES

Zhizn’zhivotnykh, vol. 4, part 1. Moscow, 1971.
Nikol’skii, G. V. Chastnaia ikhtiologiia, 3rd ed. Moscow, 1971.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
In total, we examined the digestive system of 635 pikeperch, 350 Eurasian perch Perca fluviatilis L., 265 ruffe Gymnocephalus cernuus (L.), 13 roach Rutilus rutilus (L.), 20 common bream Abramis brama (L.), 10 vendace, and 21 smelt with a SL between 4 and 15 cm.
Dominating fish species in commercial catch in Lake Peipsi with their percentage of total commercial catch (according to the Estonian Ministry of Rural Affairs) 1931-1940 1981-1990 2005-2009 Smelt 43% Smelt 27% Pikeperch 27% Roach 16% Vendace 17% Eurasian perch 24% Eurasian perch 7% Eurasian perch 12% Common bream 20% Common bream 7% Roach 6% Roach 14% 1931-1940 2010-2014 Smelt 43% Eurasian perch 33% Roach 16% Common bream 22% Eurasian perch 7% Pikeperch 21% Common bream 7% Roach 11% Table 2.
Four piscivorous fishes such as pike, Esox lucius, European catfish, Silurus glanis, pikeperch, Sander lucioperca, and Eurasian perch, Perca fluviatilis, co-occur in Kaniv Reservoir (Ukraine).
The most abundant freshwater piscivorous fish in Europe are northern pike, Esox lucius, European catfish, Silurus glanis, pikeperch, Sander lucioperca, and Eurasian perch, Perca fuviatilis (Kottelat & Freyhof 2007).
Composition of the Eurasian perch (Perea fluviatilis) catches in ice fishing: Does capture order predict body size?
Effects of tank wall color and up-welling water flow on growth and survival of Eurasian perch larvae (Perca fluviatilis).
Effects of tank colour and light intensity on feed intake, growth rate and energy expenditure of juvenile Eurasian perch, Perca fluviatilis L.
In recent years it has become economically desirable to substitute Eurasian perch (P.
The Eurasian perch is very similar morphologically to P.
We analyze the impacts of such interactions on the population dynamics of Eurasian perch (Perca fluviatilis) by considering effects of intercohort competition, habitat heterogeneity, habitat selection, and energy gain made by cannibals.
The focus of our study was a single-species population of Eurasian perch (Perca fluviatilis), over a six yr period.
Effects of fisheries on Eurasian perch Perca fluviatilis in Windermere.