Hucho hucho, Huchen : fisheries, aquaculture, gamefish

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Hucho hucho (Linnaeus, 1758)

Huchen
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Classification / Names Nombres comunes | Sinónimos | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterígios (peces con aletas radiadas) > Salmoniformes (Salmons) > Salmonidae (Salmonids) > Salmoninae
  More on author: Linnaeus.

Environment: milieu / climate zone / depth range / distribution range Ecología

; agua dulce bentopelágico; potamodromo (Ref. 59043).   Temperate; 6°C - 18°C (Ref. 2059); 50°N - 44°N, 8°E - 21°E

Distribución Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Point map | Introducciones | Faunafri

Europe: Danube drainage. 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).

Length at first maturity / Tamaño / Peso / Age

Maturity: Lm ?  range ? - ? cm
Max length : 150 cm TL macho / no sexado; (Ref. 11243); common length : 70.0 cm TL macho / no sexado; (Ref. 682); peso máximo publicado: 52.0 kg (Ref. 719); edad máxima reportada: 20 años (Ref. 59043)

Short description Morfología | Morfometría

Espinas dorsales (total): 3 - 5; Radios blandos dorsales (total): 8-14; Espinas anales 3-5; Radios blandos anales: 7 - 14; Vértebra: 66 - 72. Distinguished from other species of Salmonidae in central and eastern Europe by the following combination of characters: lateral line with 180-200 scales; no red spots and white fin margins; head dorsally flattened and long ( 22-24% SL); body roundish; caudal fin deeply emarginate; large size (in undisturbed areas); usually 13-19 gill rakers (Ref. 59043).

Biología     Glosario (por ej. epibenthic)

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.).

Life cycle and mating behavior Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva

Sexually mature fish migrate upstream into smaller and shallower (0.3-1.5 m deep) streams (Ref. 26170), usually in upper reaches of tributaries (Ref. 59043). Males arrive first at spawning sites. Males defend females against other individuals. Spawning usually occurs during daytime (Ref. 59043). Spawns on gravelly bottom where female makes a shallow hole where the eggs are laid and covered with gravel (Ref. 682). Both sexes covered the eggs with substrate. They both defend the spawning site up to 2 weeks after spawning. Eggs usually hatch after 25-40 days. Larvae stay in gravel until yolk sac is absorbed after 8-14 days (Ref. 59043). Young remain near spawning area feeding on bottom fauna. Spawns with snow melt, in shallow water in Danube or affluents (Ref. 682).

Main reference Upload your references | Referencias | Coordinador | Colaboradores

Kottelat, M., 1997. European freshwater fishes. Biologia 52, Suppl. 5:1-271. (Ref. 13696)

IUCN Red List Status (Ref. 120744)

  Endangered (EN) (B2ab(ii,iii)); Date assessed: 01 January 2008

CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Pesquerías: comercial; Acuicultura: comercial; pesca deportiva: si
FAO(Acuicultura: producción; pesquerías: producción; publication : search) | FishSource |

Más información

Nombres comunes
Sinónimos
Metabolismo
Despredadores
Ecotoxicología
Reproducción
Madurez
Puesta
Agregación para la puesta
Fecundidad
Huevos
Egg development
Age/Size
Crecimiento
Length-weight
Length-length
Length-frequencies
Morfometría
Morfología
Larva
Dinámica larvaria
Reclutamiento
Abundancia
Referencias
Acuicultura
Perfil de acuicultura
Razas
Genética
Frecuencias de alelos
heritabilidad
Enfermedades
Procesamiento
Mass conversion
Colaboradores
Imágenes
Stamps, Coins Misc.
Sonidos
Ciguatera
Velocidad
Tipo de natación
Superficie branquial
Otolitos
Cerebros
Visión

Herramientas

Special reports

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Fuentes de Internet

Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5625   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01230 (0.00726 - 0.02086), b=3.01 (2.86 - 3.16), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Nivel trófico (Ref. 69278):  4.2   ±0.74 se; Based on food items.
Generation time: 11.0 ( na - na) years. Estimated as median LN(3)/K based on 1 growth studies.
Resiliencia (Ref. 120179):  Bajo, población duplicada en un tiempo mínimo de 4.5-14 años (tm=5; tmax=20).
Vulnerability (Ref. 59153):  Very high vulnerability (77 of 100) .
Price category (Ref. 80766):   Very high.