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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: Pallas.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
marina; sötvatten; brackvatten bentopelagisk; anadrom (Ref. 138280). Polar; 78°N - 63°N, 58°E - 163°E
Arctic Ocean basin, from Kara to Kolyma drainages. Introduced or stocked in many lakes in northern and central Russia (Ref. 59043).
Längd vid första mognad / Storlek / Vikt / Ålder
Könsmognad: Lm 46.3, range 42 - 50 cm
Max length : 90.0 cm SL hane/ej könsbestämd; (Ref. 59043); publicerad maxvikt: 13.8 kg (Ref. 593); rapporterad maxålder: 23 år (Ref. 593)
Anadromous, semi-anadromous, lacustrine, lacustrine-riverine, and riverine stocks have been reported. Most stocks are migratory, spending most of year at sea, sometimes rather far from coast (Ref. 59043). Adults stay mainly in the lower reaches of the rivers (Ref. 593) with slow current, large lakes and their tributaries, floodplain lakes, deltas and estuaries, marine waters with salinity up to 6-10%. They enter rivers in July - August and reach spawning sites by October - November. In larger rivers, moves upriver up tp 2000 km (average speed 20 km/day). Spawning occurs for the first time at 6-14 years, 47-50 cm SL. They spawn in rapids or shallows, at 1-2°C, when rivers start freezing. Adults leave spawning sites in winter (Ref. 59043). Eggs are buried in unguarded nests (Ref. 205). Eggs hatch in 150-180 days; peak hatching usually in April. Juveniles feed on plankton in winter (during which they do not cease active foraging) and benthic invertebrates in summer (Ref. 59043).
Status of threat: Important commercial species but rapidly declining (Ref. 59043).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Distinct pairing (Ref. 205).
Berg, L.S., 1962. Freshwater fishes of the U.S.S.R. and adjacent countries. volume 1, 4th edition. Israel Program for Scientific Translations Ltd, Jerusalem. (Russian version published 1948). (Ref. 593)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Fiskeri: kommersiellt viktig
Verktyg
Särskilda rapporter
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Internet-källor
Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00417 (0.00268 - 0.00649), b=3.24 (3.11 - 3.37), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245). |
Trofisk nivå (Ref. 69278) |
3.5 ±0.3 se; based on size and trophs of closest relatives |
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Generation time |
10.0 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies. |
Resiliens (Ref. 120179) |
Låg, lägsta populationsfördubblingstid 4,5-14 år (tmax=23). |
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Rate of population increase |
Prior r = 0.25, 95% CL = 0.17 - 0.38, Based on 2 data-limited stock assessments. |
Sårbarhet i fisket (Ref. 59153) |
High vulnerability (63 of 100). 🛈 |
Priskategori (Ref. 80766) |
Very high.
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Näringsämnen (Ref. 124155) |
Calcium = 9.22 [5.19, 19.35] mg/100g; Iron = 0.332 [0.178, 0.604] mg/100g; Protein = 17.2 [15.9, 18.4] %; Omega3 = 0.542 [0.216, 1.489] g/100g; Selenium = 17.3 [7.4, 40.8] μg/100g; VitaminA = 11.7 [2.4, 62.8] μg/100g; Zinc = 0.409 [0.297, 0.585] mg/100g (wet weight); |