分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Salmoniformes (Salmons)
鮭形目 (Salmons) >
Salmonidae (Salmonids)
鮭科 (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 / depth range / distribution range
生態學
; 淡水 居於水底的; 溯河洄游; 深度上下限 30 - 150 m (Ref. 59043). 溫帶
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).
歐洲: 德國，波蘭，瑞典，芬蘭與俄國。
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm 29.2, range 19 - 46 cm
Max length : 55.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 59043); 最大體重: 2.0 kg (Ref. 593); 最大年齡: 20 年 (Ref. 59043)
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).
測量 36-40 公分的標本是超過 5 歲。 從十一月底到 20 十二月產卵。 (參考文獻 593) 卵生的.(參考文獻 205) 卵被埋藏在沒有防衛的巢之中。 (參考文獻 205)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Distinct pairing (Ref. 205).歐洲: 德國，波蘭，瑞典，芬蘭與俄國。
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 瀕危狀態 (Ref. 130435: Version 2024-2)
無危 (LC) (Least Concern); Date assessed: 05 July 2023
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Estimates based on models
Phylogenetic diversity index (Ref.
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).
營養階層 (Ref.
69278): 3.4 ±0.3 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (K=0.14-0.91; tm=3-5; tmax=19).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (47 of 100).
