Huchen
📖 Overview
Usually solitary, inhabits deeper regions of swift flowing streams with oxygen rich waters. Adults are territorial but not solitary . Carnivore. Juveniles feed mainly on invertebrates and adults mostly on fishes, but also prey on amphibians, reptiles, small mammals and waterfowl . 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 . 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 ; which is probably erroneous (A. Mangold, pers. comm.).
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 3 - 5; Dorsal soft rays (total): 8 - 14; Anal spines: 3 - 5; Anal soft rays: 7 - 14; Vertebrae: 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 .: fusiform / normal.
🌀 Behaviour
Behavioural data for Huchen is currently being reviewed.
🦐 Diet
Diet information for Huchen is currently being compiled.
🥚 Reproduction
Sexually mature fish migrate upstream into smaller and shallower (0.3-1.5 m deep) streams , usually in upper reaches of tributaries . Males arrive first at spawning sites. Males defend females against other individuals. Spawning usually occurs during daytime . Spawns on gravelly bottom where female makes a shallow hole where the eggs are laid and covered with gravel . 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 . Young remain near spawning area feeding on bottom fauna. Spawns with snow melt, in shallow water in Danube or affluents .
🌍 Habitat & Distribution
Freshwater; benthopelagic; potamodromous . Temperate; 6°C - 18°C ; 50°N - 44°N, 8°E - 21°E
🌿 Ecology
invertebrates and adults mostly on fishes, but also prey on amphibians, reptiles, small mammals and
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🍽️ Edibility & Flavour
"Huchen is an edible species."
- Clear, bright eyes — cloudy eyes indicate age
- Firm flesh that springs back when pressed
- Fresh ocean smell, never strong or ammonia-like
- Bright red or pink gills, not grey or brown
- Shiny, moist skin with scales tightly attached
- Cloudy or sunken eyes
- Strong fishy or ammonia odour
- Soft, mushy flesh that doesn't spring back
- Discoloured or dry flesh
⚡ Nutrition
Detailed nutritional data for Huchen is currently being compiled from USDA FoodData Central.
🔬 Mercury Safety
Mercury data for Huchen has not yet been assigned. Please consult FDA/EPA guidance for general seafood safety advice.
🌿 Sustainability
🌐 Names & Taxonomy
Scientific Synonyms
| Scientific Name | Author | Year | Status |
|---|---|---|---|
| Hucho germanorum | Günther | 1866 | Heterotypic |
| Salmo hucho | Linnaeus | 1758 | Homotypic |
🔍 Similar Species
🗺️ Global Occurrence Map
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 2 records indexed .
👥 Community & Contribute
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