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Salmoniformes (Salmons) >
Salmonidae (Salmonids) > Coregoninae
Etymology: Coregonus: Greek, kore = pupils of the eye + Greek, gonia = angle (Ref. 45335).
More on author: Gmelin.
محیط زیست: محیط زیست / منطقه آب و هوایی / تغييرات عمق / محدوده توزیع
بوم شناسي
دريايي; آب شيرين; لب شور نزديك كف زي; رود رو (Ref. 126106). Polar; 71°N - 44°N, 5°W - 133°W
Arctic Ocean basin, from Finland (lapland) to eastern Siberia, Alaska, and Canada eastward to Mackenzie drainage. Belongs to Coregonus clupeaformis complex (Ref. 27547).
طول در اولین بلوغ / اندازه / وزن / سن
بلوغ: Lm ?, range 17 - ? cm
Max length : 50.0 cm SL جنس نر / بدون خواص جنسي; (Ref. 59043); common length : 32.8 cm TL جنس نر / بدون خواص جنسي; (Ref. 12193); بيشينه سن گزارش شده: 14 سال ها (Ref. 12193)
خارهاي باله پشتي (کل) : 0; شعاع نرم باله پشتي (کل) : 11 - 13; خارهاي باله مخرجي: 0; شعاع نرم باله مخرجي: 10 - 14; مهره ها: 58 - 63. Distinguished by the gill rakers that are longer than 20% of the interorbital width, 19 to 25 gill rakers (with modal counts of 22 or 23), and a pronounced hump behind the head in adults (Ref. 27547). Adipose fin well developed, often larger in males; axillary process present in pelvic fins (Ref. 27547). Dark brown to midnight blue above fading to silver on sides and wide beneath; no parr marks in young (Ref. 27547).
Body shape (shape guide): fusiform / normal.
Adults inhabit coastal waters near shore (Ref. 5723), lower reaches of rivers with slow current, large lakes with tributaries, floodplain lakes, deltas and estuaries, brackish waters (Ref. 59043). They migrate up to more than 1,200 km inland for spawning (Ref. 5723) and overwinter near river mouths (Ref. 5723). There are non-migratory freshwater populations. Adults feed mostly on mollusks, crustaceans and chironomid larvae (Ref. 28219).
Upstream spawning migrations may be extensive but some populations seldom venture far upstream and still others may never go to sea at all (Ref. 593). Mature adults migrate upstream as early as June to spawn in October. It is assumed that the young hatch in late winter and spring, subsequently moving downstream, to return as mature adults 4 to 6 years later (Ref. 27547).
Kottelat, M., 1997. European freshwater fishes. An heuristic checklist of the freshwater fishes of Europe (exclusive of former USSR), with an introduction for non-systematists and comments on nomenclature and conservation. Biologia, Bratislava, 52/Suppl. 5:1-271. (Ref. 13696)
وضعيت در فهرست قرمز IUCN (Ref. 130435: Version 2025-2 (Global))
خطر برای انسان ها
Harmless
استفاده انسانی
ماهي گيري – شيلات: تجاري; آبزي پروري: تجاري
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
تخمینها بر اساس مدلها
شاخص تنوع فیلوژنتیکی (مرجع
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00550 (0.00331 - 0.00911), b=3.24 (3.10 - 3.38), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
سطح تروفیک (مرجع
69278): 3.3 ±0.2 se; based on diet studies.
جهندگی (مرجع
120179): پايين ، كم, كمينه زمان لازم براي دو برابر شدن جمعيت 5/4 – 14 سال (tm=3-14; tmax=14; Fec=8,000).
آسیبپذیری ماهیگیری (Ref.
59153): Moderate to high vulnerability (52 of 100).
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مواد مغذی (Ref.
124155): Calcium = 18.6 [9.7, 36.6] mg/100g; Iron = 0.418 [0.228, 0.771] mg/100g; Protein = 17.7 [16.6, 18.9] %; Omega3 = 0.619 [0.246, 1.731] g/100g; Selenium = 13.8 [5.7, 34.9] μg/100g; VitaminA = 7.09 [1.42, 38.51] μg/100g; Zinc = 0.481 [0.357, 0.661] mg/100g (wet weight);
