Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water; brak water benthopelagisch. Temperate
Europe and Asia: southern and western Caspian Sea river systems; Kura-Aras river watershed.
Grootte / Gewicht / Leeftijd
Maturity: Lm ?  range ? - ? cm
Max length : 120 cm TL mannelijk / geslacht onbekend; (Ref. 1441); max. gepubliceerd gewicht: 14.5 kg (Ref. 1441)
Most fish are mature on the 6th-8th year. Large females may have about 1,259,000 eggs. Spawning begins at the end of April, peaks in June and ends in August (Ref. 1441)
Levenscyclus en paargedrag
Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven
Fricke, R., M. Bilecenoglu and H.M. Sari, 2007. Annotated checklist of fish and lamprey species (Gnathostoma and Petromyzontomorphi) of Turkey, including a Red List of threatened and declining species. Stuttgarter Beitr. Naturk. Sea A (706):1-172. (Ref. 58342)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: commercieel
Tools
Speciale rapporten
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Internetbronnen
Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 2.7 ±0.3 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): Zeer laag, minimale populatieverdubbelingstijd meer dan 14 jaar (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (72 of 100).