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Salmoniformes (Salmons) >
Salmonidae (Salmonids) > Coregoninae
Etymology: Coregonus: Greek, kore = pupils of the eye + Greek, gonia = angle (Ref. 45335).
Eponymy: Dr Hjalmar Abraham Teofil Widegren (1838–1878) was a Swedish ichthyologist and fisheries officer (1864). [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / Mức độ sâu / distribution range
Sinh thái học
; Nước ngọt gần đáy; di cư biển sông (để đẻ trứng); Mức độ sâu 30 - 150 m (Ref. 59043). Temperate
Europe: Baltic: Bothnian Gulf, Gotland (missing along Swedish coast southward of Stockholm); southern Baltic: from Germany to Gulf of Finland; several landlocked populations in Sweden (Lakes Vänern, Vättern, Locknesjön, Storvindeln, Storlaisan, Skalka-Parkijaur, Arjeplog) and Russia (Neva drainage, Lakes Ladoga and Onega).
Length at first maturity / Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Chín muồi sinh dục: Lm 29.2, range 19 - 46 cm
Max length : 55.0 cm SL con đực/không giới tính; (Ref. 59043); Khối lượng cực đại được công bố: 2.0 kg (Ref. 593); Tuổi cực đại được báo cáo: 20 các năm (Ref. 59043)
Short description
Khóa để định loại | Hình thái học | Sinh trắc học
Recorded from coastal waters at sea. Lacustrine, at depths greater than 30 m, in Lake Ladoga commonly at 50-150 m (Ref. 59043). Specimens measuring 36-40 cm are more than 5 years old. Spawns for the first time at 4-6 years (Ref. 59043). Spawns from the end of November to 20 December (Ref. 593). Oviparous (Ref. 205). Eggs are buried in unguarded nests (Ref. 205). Feeds on benthic invertebrates, especially gammarids, molluscs and insect larvae (Ref. 59043).
Distinct pairing (Ref. 205).
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)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Các công cụ
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Estimates based on models
Phylogenetic diversity index (Tài liệu tham khảo
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00537 (0.00325 - 0.00886), b=3.22 (3.08 - 3.36), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Mức dinh dưỡng (Tài liệu tham khảo
69278): 3.4 ±0.3 se; based on size and trophs of closest relatives
Thích nghi nhanh (Tài liệu tham khảo
120179): Trung bình, thời gian nhân đôi của chủng quần tối thiểu là 1.4 - 4.4 năm (K=0.14-0.91; tm=3-5; tmax=19).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (47 of 100).
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