Coregonus nasus, Broad whitefish : fisheries, gamefish

Coregonus nasus (Pallas, 1776)

Broad whitefish
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Image of Coregonus nasus (Broad whitefish)
Coregonus nasus
Male 画像によって Kline, T.

分類 / 名前 共通名の | 類義語 | Catalog of Fishes(部類, ) | ITIS | CoL | WoRMS | Cloffa

> Salmoniformes (Salmons) > Salmonidae (Salmonids) > Coregoninae
Etymology: Coregonus: Greek, kore = pupils of the eye + Greek, gonia = angle (Ref. 45335)nasus: nasus refering to shape of nose (Ref. 1998).
More on author: Pallas.

環境:環境 / 気候帯 / 深さの範囲 / 分布範囲 生態学

; 新鮮な水; 汽水性の pelagic-neritic; 昇流魚 (Ref. 138280). Polar; 73°N - 59°N, 46°E - 102°W

分布 領土 | 国連食糧農業機関の区域 | エコシステム | 事件 | 目的のマップ | 導入 | Faunafri

Eurasia and North America: all drainages of Arctic Ocean from Volonga and Pechora to Alaska.

初回成熟時の長さ / サイズ / 重さ / 年齢

成熟: Lm ?  range ? - ? cm
Max length : 71.0 cm TL オス/雌雄の選別がない; (Ref. 96339); common length : 46.0 cm TL オス/雌雄の選別がない; (Ref. 1998); 最大公表体重: 16.0 kg (Ref. 1998); 最大記録サイズ: 15 年 (Ref. 59043)

簡単な記述 検索表 | 形態学 | 形態計測学

背面の脊椎 (合計) : 0; 背鰭 (合計) : 10 - 13; 肛門の骨: 0; 臀鰭: 11 - 14; 脊つい: 60 - 65. Distinguished by its short gill rakers, which are less than one-fifth as long as the interorbital width, and the rounded to flat profile of the head (Ref. 27547). Adipose fin fairly large; axillary process present in the pelvic fins (Ref. 27547). Olive-brown to nearly black on back; sides silvery, often with a gray cast; belly white to yellowish; fins usually rather gray in adults, pale in young (Ref. 27547).
Body shape (shape guide): fusiform / normal.

生物学     用語集 (例 epibenthic)

Nerito-pelagic (Ref. 58426). Adults are found in lowland river and lakes (Ref. 59043) but most frequently in streams (Ref. 5723). Lacustrine and estuarine anadromous forms exist (Ref. 593). Alevins and juveniles feed on zooplankton, adults on benthos, mainly chironomid larvae and molluscs (Ref. 1998, 59043). Males reproduce for the first time in 4-8 years, females at 5-9. Adults start upstream migration in late July - August and reach spawning sites by October - November and spawn in stretches with swift current and sand-pebble bottom, often under ice. Spawning lasts 5-7 days and fish leave spawning site soon after, migrating downstream to overwinter in deeper places of lower stretches of rivers together with older juveniles. In spring, alevins drift from spawning sites downstream with flood-water and forage in floodplain lakes and oxbows where they remain until end of summer before moving to river or reaching maturity (if lakes are large enough and do not dry out). Widely used for aquaculture in eastern Europe (Ref. 59043). Flesh is highly esteemed (Ref. 1998). Sold fresh, dried, or smoked (Ref. 1998).

ライフサイクルと交尾行動 成熟 | 繁殖 | 放精 | | 生産力 | 幼生

Mature adults make upstream spawning migrations beginning as early as June and may extend to September or later (Ref. 28214, 28852, 28855, 28857) and move back downstream after spawning and overwinter in deep parts of the rivers or in estuaries (Ref. 27547). Young hatch in the spring and move downward (Ref. 27547).

主な参考文献 参考文献のアップロード | 参考文献 | コーディネーター | 協力者

Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea and W.B. Scott, 1991. Common and scientific names of fishes from the United States and Canada. Am. Fish. Soc. Spec. Publ. (20):183 p. (Ref. 3814)

IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))

  軽度懸念 (LC) ; Date assessed: 22 July 2021

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Harmless





人間の用途

水産業: 商業; ゲームフィッシュ: はい
FAO - Publication: search | FishSource | 私達の周りの海

より多くの情報

ライフサイクル
繁殖
成熟
成熟度/エラ
生産力
放精
産卵群

卵の開発
幼生
幼生の動力
解剖学
カマ

オトリス
生理学
体組成
栄養素
酸素消費
水泳タイプ
泳ぐ速さ
視覚色素
フィッシュ・サウンド
病気と寄生虫
毒性(LC50)
遺伝子の
ゲノム
遺伝子の
ヘテロ接合性
遺伝
遺伝的多様性
人間関係
養殖システム
水産養殖の紹介
緊張
シガテラ症例
切手、コイン、その他
アウトリーチ
協力者
参考文献
参考文献

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モデルに基づく推定値

系統多様性指数
(参照 82804)
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight a=0.00537 (0.00472 - 0.00611), b=3.22 (3.18 - 3.26), in cm total length, based on LWR estimates for this species (Ref. 93245).
栄養段階
(参照 69278)
3.5   ±0.1 se; based on diet studies.
Generation time 7.8 (5.4 - 8.9) years. Estimated as median ln(3)/K based on 15 growth studies.
回復力
(参照 120179)
低い, 4.5年~14年の倍増期間の最小個体群 (K=0.10-0.30; tm=7; tmax=15; Fec=10,000).
Rate of population increase Prior r = 0.34, 95% CL = 0.22 - 0.51, Based on 2 data-limited stock assessments.
漁業の脆弱性
(Ref. 59153)
High vulnerability (65 of 100). 🛈
価格帯
(Ref. 80766)
Very high.
栄養素
(Ref. 124155)
Calcium = 14 [6, 26] mg/100g; Iron = 0.432 [0.202, 0.855] mg/100g; Protein = 18.1 [17.0, 19.3] %; Omega3 = 0.638 [0.254, 1.755] g/100g; Selenium = 12.1 [4.4, 31.1] μg/100g; VitaminA = 7.15 [1.18, 46.59] μg/100g; Zinc = 0.475 [0.354, 0.695] mg/100g (wet weight);