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).
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 大洋性. 溫帶; 49°N - 41°N
North America: found only in Great Lakes (except Lake Erie), Canada-USA. This species is common in Lake Superior, extremely rare, possibly extirpated, in Lakes Huron and Ontario, and endangered in Lake Michigan.
北美洲: 發現只在五大湖 (除了伊利湖以外) 中在加拿大-美國。 這種是常見於秀克必李耳湖, 非常稀有, 可能地滅絕了, 在休倫湖與安大略省, 與瀕臨絕種的在密西根湖。
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm 18.0 range ? - ? cm
Max length : 35.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 5723); common length : 25.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 1998); 最大年齡: 10 年 (Ref. 1998)
背棘 (總數) : 0; 背的軟條 (總數) : 9 - 11; 臀棘: 0; 臀鰭軟條: 9 - 16; 脊椎骨: 55 - 58. Body elongate, distinctly compressed laterally, and thin, greatest body depth in front of dorsal fin. Head about 23 - 26% of total length; eye large, but shorter than snout; snout always longer than eye diameter; mouth terminal, lower jaw usually projecting beyond the upper, usually with a distinct symphyseal knob or projecting posteriorly to below the anterior half of the eye. Overall coloration silvery with pink or purple iridescence, dark on back, silvery on sides, white below; often dark on tip of lower jaw, top of head, back and on dorsal and caudal fins. Pelvic fins usually immaculate.
細長的身體, 明顯扁長形側面地, 與在背鰭之前的細又最大的體高。 頭部大約 23- 26% 的全長; 眼大的, 但是短於吻; 吻總是長度超過眼直徑; 口端位, 下頜通常突出的超過上頜, 通常有一個明顯的合生癤瘤或突出的在後部地到在那之下前半部的眼。 整體的顏色銀色的有粉紅或紫色的彩虹色, 深色的背面, 銀色的在側邊上, 腹面白色的; 時常深色的在下頜，頭頂的頂端上, 背面與在背鰭與尾鰭鰭上。 腹鰭通常無斑點的。
Inhabits open water.
棲息於開放水域。
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
北美洲: 發現只在五大湖 (除了伊利湖以外) 中在加拿大-美國。 這種是常見於秀克必李耳湖, 非常稀有, 可能地滅絕了, 在休倫湖與安大略省, 與瀕臨絕種的在密西根湖。
Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723)
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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=0.00589 (0.00340 - 0.01021), b=3.22 (3.07 - 3.37), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.5 ±0.50 se; based on food items.
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (K=0.51; tmax=10).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (26 of 100).
Nutrients (Ref.
124155): Calcium = 26 [12, 54] mg/100g; Iron = 0.586 [0.296, 1.249] mg/100g; Protein = 19.1 [17.8, 20.3] %; Omega3 = 2.57 [0.84, 9.13] g/100g; Selenium = 17 [6, 57] μg/100g; VitaminA = 15.8 [4.6, 54.6] μg/100g; Zinc = 0.721 [0.498, 1.047] mg/100g (wet weight);
