Environment: milieu / climate zone / depth range / distribution range
; laut; air tawar; payau; anadromus (ruaya dari laut ke air tawar) (Ref. 51243); kisaran kedalaman 70 - 180 m. Temperate; 10°C - 20°C (Ref. 2059); 57°N - 35°N, 17°E - 60°E
Eurasia: Caspian, Black, Azov and Adriatic Sea basins.
Extirpated from Adriatic Sea.
Length at first maturity / Size / Weight / umur
Maturity: Lm ?, range 200 - ? cm
Max length : 800 cm TL jantan/; (Ref. 59043); common length : 215 cm TL jantan/; (Ref. 3397); Berat maksimum terpublikasi: 3.2 t (Ref. 59043); Umur maksimum dilaporkan: 118 Tahun (Ref. 47437)
Duri punggung (Keseluruhan (total)): 0; duri punggung lunak (Keseluruhan (total)): 62-73; Duri dubur 0; Sirip dubur lunak: 28 - 41. Snout moderate and pointed, turning slightly upward. Lower lip not continuous, interrupted at center. Barbels oval or flat, leaf-like posteriorly, reaching almost to mouth. Five rows of scutes, dorsal 11-14 (first one smallest), lateral 41-52 on each side, ventral 9-11 on each side. Back ash-grey or greenish, flanks lighter, belly white.
Pelagic at the sea, following its prey. Undertakes upriver migration to spawn. Juveniles occur in shallow riverine habitats during their first summer. Spawns in the main course of large and deep rivers with strong current and on stone or gravel bottom (Ref. 59043). Feeds mostly on sea fishes (Black Sea whiting, anchovies, flatfishes, gobies, fry of bottom-living fishes), also crustaceans, mollusks, mysids and amphipods. Fisheries are based almost entirely on the value of the caviar, but meat also is sold fresh, smoked and frozen; eaten broiled, boiled, fried and baked (Ref. 9988). Bester, a hybrid of female Huso huso and male sterlet Acipenser ruthenus, has been successfully cultivated for its high quality eggs (Ref. 9988). The largest sturgeon and largest European freshwater fish. In Guinness Book of Records as the most expensive fish (Ref. 6472). Threatened due to overfishing for meat at the sea and for caviar in estuaries. These threats will soon cause global extinction of the natural populations. Survival can only depend on stocking (Ref. 59043).
Enters rivers from March, usually April and May (also in autumn). Survives largely by artificial propagation. About 360,000-7,700,000 eggs per female. Females carry eggs only once every five to seven years (Ref. 9988).
Kottelat, M. and J. Freyhof, 2007. Handbook of European freshwater fishes. Publications Kottelat, Cornol and Freyhof, Berlin. 646 pp. (Ref. 59043)
Status IUCN Red List (Ref. 125652)
ancaman kepada manusia
Perikanan: komersial; Budidaya air: komersial
muat turun XML
Estimates based on models
Preferred temperature (Ref. 115969
): 7.7 - 15.6, mean 9.1 °C (based on 19 cells).
Phylogenetic diversity index (Ref. 82805
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00447 (0.00269 - 0.00740), b=3.11 (2.97 - 3.25), in cm total length, based on LWR estimates for species & Subfamily-BS (Ref. 93245
Trophic level (Ref. 69278
): 4.4 ±0.3 se; based on diet studies.
Daya lenting (Ref. 120179
): sangat rendah, Waktu penggandaan populasi minimum lebih dari 14 tahun (K=0.1; tm=13-22; tmax=118; Fec=360,000).
Fishing Vulnerability (Ref. 59153
): Very high vulnerability (89 of 100) .
Climate Vulnerability (Ref. 125649
): Very high vulnerability (79 of 100) .
Nutrients (Ref. 124155
): Calcium = 6.21 [2.60, 13.87] mg/100g ; Iron = 0.211 [0.111, 0.410] mg/100g ; Protein = 16.8 [14.3, 19.7] % ; Omega3 = 0.805 [0.348, 1.884] g/100g ; Selenium = 26.2 [10.4, 69.4] μg/100g ; VitaminA = 14.3 [3.4, 64.1] μg/100g ; Zinc = 0.329 [0.203, 0.564] mg/100g (wet weight); based on nutrient studies.