Thymallus svetovidovi, Upper Yenisei grayling

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Thymallus svetovidovi Knizhin & Weiss, 2009

Upper Yenisei grayling
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Image of Thymallus svetovidovi (Upper Yenisei grayling)
Thymallus svetovidovi
Picture by Ratschan, C.

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

> Salmoniformes (Salmons) > Salmonidae (Salmonids) > Thymallinae
Etymology: Thymallus: Greek, thymallos, -ou = a kind of fish similar to salmon (Ref. 45335);  svetovidovi: The species is named in honor of the famous researcher of graylings of Eurasia, Anatolii Nikolaevich Svetovidov..

Environment: milieu / climate zone / depth range / distribution range 生態学

; 新鮮な水 外洋の. Temperate

分布 国々 | 国連食糧農業機関の区域 | エコシステム | 事件 | Point map | 導入 | Faunafri

Asia: Mongolia. Headwaters of the Yenisei River (Ref. 80385).

サイズ / 重さ / 年齢

Maturity: Lm ?  range ? - ? cm
Max length : 39.6 cm SL オス/雌雄の選別がない; (Ref. 80385)

簡単な記述 形態学 | 形態計測学

背鰭 (合計): 20-23; 臀鰭: 11 - 15; 脊つい: 50 - 52. Body deep, massive. Scales large, densely sitting. Snout oval, mouth terminal. Upper jaw not extending beyond midorbit. Main body coloration is gray-black. Dorsum dark, monotonous. Abdomen white. From the throat to ventral fins, two weakly pronounced parallel brownish yellow stripes running. Branchiostegal rays with a yellowish shade. Beyond gill cover to insertion of the seventh unbranched ray of dorsal fin, eight small black spots of different shape with a diameter of 1–3 mm are scattered. Above ventral fins, below lateral line, scales have a weak reddish shade. Caudal peduncle large, extending to adipose fin in a folded state. Its upper edge wide, oval. Dorsal fin pattern consists of several series of red-crimson spots of different shape. In its anterior part, poorly distinguishable spots are only near the insertion as three to four narrow horizontal stripes, while, in the posterior part, their number increases to seven. Closer to the middle of the fin, spots become rounded in the shape and well noticeable. Spots of the upper row are the largest, of an irregular shape, vertically and horizontally extended. Their margins extend to neighboring interradial membranes, sometimes fusing with the margin, forming a kind of a continuous wide tortuous stripe. Rows located lower are formed of oval spots of a smaller size with a narrow dull framing. Along rays of ventral fins, four stripes of red-claret color pass. Between the first and the second stripes there is an additional shortened stripe of the same color. Adipose fin large, of lilac color. Pectoral fins monotonous, yellowish gray.

生物学     用語集 (例 epibenthic)

Life cycle and mating behavior 成熟 | 繁殖 | 放精 | | 生産力 | 幼生

主な参考文献 Upload your references | 参考文献 | コーディネーター | 協力者

Knizhin, I.B. and S.J. Weiss, 2009. A New Species of Grayling Thymallus svetovidovi sp. nova (Thymallidae) from the Yenisei Basin and Its Position in the Genus Thymallus. J. Ichthyol. 49(1):1-9. (Ref. 80385)

IUCNのレッドリストの状況は (Ref. 130435)


CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Harmless





Human uses

FAO - Publication: search | FishSource |

より多くの情報

国々
国連食糧農業機関の区域
エコシステム
事件
導入
Stocks
生態学

食品種目概要について
摂食量
定量
共通名の
類義語
代謝
捕食動物
生態毒性
繁殖
成熟
放精
卵の集合体
生産力

卵の開発
Age/Size
成長
体長-重さ
Length-length
体長組成
形態計測学
形態学
幼生
幼生の動力
補充
豊度
BRUVS
参考文献
水産養殖
水産養殖の紹介
緊張
遺伝子の
Electrophoreses
遺伝
病気
行列
Nutrients
Mass conversion
協力者
画像
Stamps, Coins Misc.

シガテラ(食中毒の名前)
速度
泳ぐ 型式
カマ
Otoliths

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5001   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00871 (0.00371 - 0.02044), b=3.07 (2.87 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
栄養段階 (Ref. 69278):  3.2   ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  手段, 1.4年~4.4年の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (38 of 100).