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Hucho hucho in Croatia
Huchen

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Hucho hucho   (Linnaeus, 1758)
Family:	Salmonidae (Salmonids) , subfamily: Salmoninae			picture (Huhuc_u0.jpg) by Moreau, J.
Order:	Salmoniformes  (salmons)
Class:	Actinopterygii (ray-finned fishes)
FishBase name:	Huchen
Max. size:	150 cm TL (male/unsexed; Ref. 11243); max. published weight: 52.0 kg (Ref. 719); max. reported age: 15 years
Environment:	benthopelagic; potamodromous
Climate:	temperate; 6 - 18°C; 50°N - 44°N
Global Importance:	fisheries: commercial; aquaculture: commercial
Resilience:	Low, minimum population doubling time 4.5 - 14 years (tm=5; tmax=15)
Distribution:	Europe: Rivers of the Danube basin. Introduced into other European river basins when their numbers declined due to ecological changes in the Danube. Appendix III of the Bern Convention (protected fauna).
Diagnosis:	Dorsal spines (total): 3-5; Dorsal soft rays (total): 8-14; Anal spines: 3-5; Anal soft rays: 7-14; Vertebrae: 66-72. Also Ref. 2196.
Biology:	Usually solitary, inhabits deeper regions of swift flowing streams with oxygen rich waters. Adults are territorial but not solitary (Ref. 26170). Carnivore. Juveniles feed mainly on invertebrates and adults mostly on fishes, but also prey on amphibians, reptiles, small mammals and waterfowl (Ref. 26170). Important sport fish with minimum size of catch from 50-55 cm. Transplantations of young artificially incubated and reared fish have not been successful. Depletion of stocks due to overexploitation, industrial pollution, waterway redirection and badly designed or non-existent fish ladders in dams and reservoirs. Territorial, but migrates short distances upstream for spawning (Ref. 556). Reported to be one of the biggest freshwater fishes of the world, reaching a length of over 2 m and weight of over 100 kg (Ref. 26170); which is probably erroneous (A. Mangold, pers. comm.)
Threatened:	Endangered, see IUCN Red List  (B2ab(ii,iii)) , (Ref. 36508)
Dangerous:	harmless
Coordinator:
Main Ref:	Kottelat, M.. 1997. (Ref. 13696)
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Croatia country information
Common names:	[ No common name ]		Ref:
Status:	native		Ref:
Salinity:	freshwater
Aquaculture:			Ref:
Uses:	no uses
Country Information:	www.cia.gov/cia/publications/factbook/geos/hr.html
Occurrences:	Occurrences    Point map
Main Ref:	Gerstmeier, R. and T. Romig, 1998
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More information:	Countries FAO areas Occurrences Introductions Ecosystem Ecology Diet Food items Food consumption Ration Predators Ciguatera Fish loss Common names Synonyms Pictures Sounds Reproduction Maturity Spawning Eggs Egg dev. Larvae Larval dynamics References Growth L-W relationship L-L relationship Length frequencies Recruitment Max. age & size Metabolism Morphology Morphometrics Gill area Brains Vision Collaborators Genetics Allele frequencies Heritability Strains Aquaculture Aquaculture profile Diseases Ecotoxicology Processing Speed Swim. type Stamps
	Note: No data are available if label is black .
Tools:	Biogeographic modelling | Bio-Quiz | E-book | Field guide | Length-frequency Wizard | Life-history tool | Point map |
Internet sources:	Alien/Invasive species database | BiOSC Point Data | CISTI | Google | GOBASE | GenBank ( genome, nucleotide ) | National databases | PubMed | Scirus | Tree of Life | Zoological Record Other web sites |
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	Entered:  Froese, Rainer

	Ref.:				Glossary
		(e.g. 9948)				(e.g. cephalopods)
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Page created by: Eli, 20.10.03, last modified by Eli, 26.06.07