分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Salmoniformes (Salmons) >
Salmonidae (Salmonids) > Coregoninae
Etymology: Stenodus: Greek, stenos = narrow + Greek, odous = teeth (Ref. 45335).
More on author: Pallas.
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋; 淡水; 半咸淡水 底中水层性; 溯河洄游.
Arctic Ocean basin, from Ponoi (Kola Peninsula, White Sea basin) eastward to Anadyr (Siberia), Yukon (Alaska) and Mackenzie (Canada) drainages.
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 150 cm SL 雄鱼/尚未辨别雌雄; (Ref. 59043)
Found in the pelagic zone at the sea with salinity up to 20 ppt. Inhabits large lowland and piedmont rivers and lakes. Prefers cold water with temperatures below 16° C. Forages and overwinters in lower reaches of large rives, deltas, estuaries and sea, sometimes far from coast. Anadromous or semi-anadromous, living in some rivers and landlocked in some lakes. Undertakes migration to spawn in rivers, moving upstream for long distances, up to uppermost reaches in European rivers. Populations in the lake migrate into tributaries. Juveniles prey on mysids, insect larvae and fry, shifting exclusively to piscivory at about 30 cm SL. Actively feeds on all available fishes. Spawning takes place over shallow waters with sand-gravel bottom and 2-3 m depth (Ref. 59043).
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Spawning usually takes place only 1-2 times during life, rarely 3, usually every 2-3 years (Ref. 59043).
Kottelat, M. and J. Freyhof, 2007. Handbook of European freshwater fishes. Publications Kottelat, Cornol and Freyhof, Berlin. 646 pp. (Ref. 59043)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-1)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00457 (0.00194 - 0.01077), b=3.13 (2.92 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.6 ±0.3 se; based on size and trophs of closest relatives
Generation time: 20.5 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
回复力 (Ref.
120179): 低的, 最小族群倍增时间4.5 - 14 年 (tm=4-16).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).
