Country Species Summary

Aspius aspius (Linnaeus, 1758)
Family:	Cyprinidae (Minnows or carps)	picture (Asasp_u5.jpg) by JJPhoto
Order:	Cypriniformes (carps)
Class:	Actinopterygii (ray-finned fishes)
FishBase name:	Asp
Max. size:	100.0 cm TL (male/unsexed; Ref. 556); max. published weight: 9,000 g (Ref. 556); max. reported age: 11 years
Environment:	benthopelagic; potamodromous ; depth range - 10 m
Climate:	temperate; 4 - 20°C; 66°N - 35°N
Global Importance:	fisheries: commercial; aquaculture: commercial
Resilience:	Medium, minimum population doubling time 1.4 - 4.4 years (tm=3-4; tmax=11; K=0.10-0.33; Fec = 50,000-1 million)
Distribution:	European waters, except for Denmark, Great Britain and southern regions (Ref. 9696). Large rivers draining to North Sea (Weser, Elbe), Baltic Sea (southern tributaries, Norway east of Oslo, southern Sweden, Kokemären drainage in southern Finland), Black Sea, Sea of Azov and Caspian Sea; Aegean Sea basin, from Maritza to Lake Volvi drainages. Introduced in Rhine, Northern Dvina and Lake Balkhash (Asia) (Ref. 59043). Appendix III of the Bern Convention (protected fauna). Subspecies Aspius aspius iblioides recognized by authors for the Aral Sea (Ref. 13403).
Diagnosis:	Dorsal spines (total): 3-3; Dorsal soft rays (total): 7-9; Anal spines: 3-3; Anal soft rays: 12-15. Long shape body, laterally compressed with a long sharp head. Green back with silver to blue tints. Lighter flanks. Silver white belly. Pectoral, pelvic and anal fins grey to brown. Scalar formula: 11-14/64-76/5-6 (Ref. 40476).
Biology:	Adults inhabit lower reaches of rivers and estuaries (Ref. 30578). Prefer to stay near bridge pillars, near tributaries, under weirs, in deep currents and overgrown parts of river and in quiet bays of river bends (Ref. 9696). One of the rare cyprinids which is piscivore; also feed on small aquatic birds. Migrate upstream in tributaries for spawning in April-June (Ref. 556, 30578). Juveniles and adults feed predominantly on fish, especially on Alburnus alburnus or Osmerus eperlanus (Ref. 59043)
Threatened:	, (Ref. 36508)
Dangerous:	harmless
Coordinator:
Main Ref:	Vostradovsky, J.. 1973. (Ref. 9696)
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Belgium country information
Common names:	[ No common name ]	Ref:
Status:	introduced	Ref:
Salinity:	freshwater
Regulations:	no regulations	Ref:
Uses:	no uses
Comments:	Naturalized in Flanders (Ref. 79522).
Country Information:	www.cia.gov/cia/publications/factbook/geos/be.html
Occurrences:	Occurrences Point map
Main Ref:	Verreycken,H., D. Anseeuw, G. Van Thuyne, P. Quataert and C. Belpaire, 2007
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Checked: Casal, Christine Marie V.

Modified: Casal, Christine Marie V.

Entered: Casal, Christine Marie V.

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Page created by: Eli, 20.10.03, last modified by Eli, 26.06.07

	Ref.:		Glossary
		(e.g. 9948)		(e.g. cephalopods)
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