bleak

(redirected from Alburnus alburnus)
Also found in: Dictionary, Thesaurus.
Related to Alburnus alburnus: Perca fluviatilis, Leuciscus cephalus

bleak

any slender silvery European cyprinid fish of the genus Alburnus, esp A. lucidus, occurring in slow-flowing rivers
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Bleak

 

(Alburnus alburnus), a freshwater school fish of the family Cyprinidae. The bleak may measure up to 20 cm in length and weigh as much as 60 g. The mouth is directed forward; the scales fall off easily. Distributed in river basins of Western Europe and the European part of the USSR, the fish lives in slow-moving rivers and is numerous in reservoirs. It spawns intermittently from May through July each year after attaining sexual maturity at the age of three years. The female produces 3,000–10,500 eggs, which it deposits on plants. The bleak feeds on plankton and algae. It serves as food for a number of predatory fishes and is fished commercially.

REFERENCES

Nikol’skii, G. V. Chastnaia ikhtiologiia, 3rd ed. Moscow, 1971.
Ryby SSSR. Moscow, 1969.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
One of the more relatively recent arrivals in the Iberian Peninsula is the bleak Alburnus alburnus (L., 1758), a cyprinid species native to most of Europe, from the Pyrenees to the Urals.
2014: Population traits of invasive bleak Alburnus alburnus between different habitats in Iberian fresh waters.
Length groups (cm) Prey items < 44 (n = 29) 45-59 (n = 36) %FO %IRI %FO %IRI Fish 96.6 99.1 100.0 100.0 Rutilus rutilus 17.2 20.4 30.6 47.3 Scardinius erythrophthalmus 13.8 8.8 13.9 8.3 Abramis brama 8.3 6.3 Blicca bjoerkna 27.6 37.6 5.6 1.7 Alburnus alburnus 3.4 0.3 5.6 1.0 Tinca tinca 3.4 1.0 Carassius gibelio 6.9 2.1 16.7 21.2 Hypophthalmichthys sp.
Twenty-three species and one hybrid were recorded (inlet zone - 20, lake zone - 14), with roach Rutilus rutilus and bleak Alburnus alburnus (plus perch Perca fluviatilis) dominant in inlet samples, but carp Cyprinus carpio dominant by biomass; and white bream Blicca bjoerkna and roach dominant in the lake zone, both by abundance and biomass.
1979: On selectivity of gill nets for, and certain biological parameters of Alburnus alburnus and Rutilus rutilus.

Full browser ?