Environment: milieu / climate zone / depth range / distribution range
بوم شناسي
دريايي; آب شيرين; لب شور; رود کوچ (Ref. 33312); تغييرات عمق 10 - ? m (Ref. 5723). Boreal; 71°N - 55°N
Arctic, Northwest to Northeast Pacific: drainages from Rae River (Coronation Gulf) and Great Bear Lake in Northwest Territories, Canada to Copper River in Alaska (Ref. 33312). Also rivers, estuaries and coastal waters of European and Siberian shores of Artic Ocean, from Kara drainage to Chukotka in eastern Siberia and to Korea and Hokkaido in Japan (Ref. 59043).
Length at first maturity / Size / Weight / سن
Maturity: Lm 10.0 range ? - ? cm
Max length : 20.0 cm TL جنس نر / بدون خواص جنسي; (Ref. 86798); common length : 11.3 cm TL جنس نر / بدون خواص جنسي; (Ref. 12193); بيشينه وزن گزارش شده: 50.00 g (Ref. 56527); بيشينه سن گزارش شده: 10 سال ها (Ref. 72499)
خارهاي باله پشتي (کل) : 0; شعاع نرم باله پشتي (کل) : 8 - 11; خارهاي باله مخرجي: 0; شعاع نرم باله مخرجي: 13 - 17; مهره ها: 52 - 56. Vomer without posterior process; periphery of glossohyal bone with single row of conical teeth, another row of smaller teeth in center; pyloric caeca 2 (1-5); base of adipose fin more than 20% of head length; adipose eyelid absent.
Inhabits brackish water of estuaries, lagoons, coastal waters of open sea, freshwater of lowland and piedmont rivers and lakes (Ref. 59043). Found in the middle and surface waters of ponds, lakes, and streams over a variety of bottom types (Ref. 5723, 86798). The species is basically anadromous, ascending rivers to spawn in spring (Ref. 33312). The anadromous populations are pelagic at the sea, commonly at 4-5 m depth and spawn in rivers. Landlocked populations may spawn in lakes or undertake migration to their tributaries. Spawns along shallow river shores and in backwaters with little or no current, often in lakes, on sand or gravel bottom (Ref. 59043). Within a specific lake or pond, adults are generally found in inshore spawning areas in spring and early summer, later moving offshore (Ref. 27547). Feeds on zooplankton, insects and algae (Ref. 28680, 28681). Only a few survive beyond age 3 (Ref. 27547).
Saruwatari, T., J.A. López and T.W. Pietsch, 1997. A revision of the ormerid genus Hypomesus Gill (Teleostei: Salmoniformes), with a description of a new species from the southern Kuril Islands. Species Diversity 2:59-82. (Ref. 33312)
وضعيت در فهرست قرمز IUCN (Ref. 130435: Version 2024-1)
خطر برای انسان ها
Harmless
استفاده انسانی
ماهي گيري – شيلات: تجاري
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5313 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00398 (0.00246 - 0.00645), b=3.20 (3.06 - 3.34), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.3 se; based on diet studies.
جهندگی (Ref.
120179): متوسط, كمينه زمان لازم براي دو برابر شدن جمعيت 4/1 – 4/4 سال (tm=2; tmax=5).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
