Environment: milieu / climate zone / depth range / distribution range
বাস্তুসংস্থান
সামুদ্রিক; স্বাদু পানি; ঈষৎ লোনা ; এ্যানাড্রমাস (Ref. 33312); গভীরতার পরিসীমা 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 / আকৃতি / ওজন / Age
Maturity: Lm 10.0 range ? - ? cm
Max length : 20.0 cm TL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 86798); common length : 11.3 cm TL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 12193); সবের্াচ্চ প্রকাশিত ওজন : 50.00 g (Ref. 56527); সর্বোচ্চ উলি্ল্লখিত বয়স : 10 বৎসর (Ref. 72499)
পৃষ্ঠীয় কাঁটা (মোট ) : 0; পৃষ্ঠীয় নরম পাখনা দন্ড (মোট ) : 8 - 11; পায়ূ কাঁটা : 0; পায়ূর নরম পাখনা্তুন্ড: 13 - 17; কশেরুকা : 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)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
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ইন্টারনেট সুত্র
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).
ট্রফিক পর্যায়ে (Ref.
69278): 3.2 ±0.3 se; based on diet studies.
স্থিতিস্থাপক (Ref.
120179): মাধ্যম , সর্বনিম্ন প্রজন দ্বিগুনের সময় ১.৪-৪.৪ বৎসর (tm=2; tmax=5).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
