Cottus koshewnikowi Gratzianov, 1907
分類 / Names 俗名 | 同種異名 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii 輻鰭魚綱 (條鰭魚) > Scorpaeniformes (Scorpionfishes and flatheads) 鮋形目 (Scorpionfishes and flatheads) > Cottidae (Sculpins) 杜父魚科 (Sculpins)
Etymology: Cottus: Greek, kottos = a fish (Ref. 45335).
Etymology: Cottus: Greek, kottos = a fish (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range 生態學
; 淡水 底中水層性.
分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri
Europe: Upper Volga, Ural and Dniepr drainages and northern and eastern Gulf of Bothnia in Finland and northern Sweden. Southern Baltic tributaries west to Estonia (Ref. 55856). Cottus populations from Dniepr, Ural and Pechora drainages are tentatively identified as Cottus koshewnikowi (Ref. 59043).
大小 / 重量 / 年齡
簡短描述 型態特徵 | 形態測量圖
臀鰭軟條: 11 - 14. Can be distinguished from other species of Cottus in Europe by the combination of the following characters: lateral line incomplete; reaching to anal-fin base, usually with 17-25 pores; at vertical of 10th ray of second dorsal fin, lateral line clearly above horizontal midline, distance from dorsal midline to lateral line 1.5-2.1 times in distance from ventral midline to lateral line; no distinct transverse bands on pelvic fin; prickling on body variable, in juveniles usually extending to caudal peduncle (Ref. 55856).
Inhabits medium-sized rivers to small streams, and lake shores (Ref. 59043).
Life cycle and mating behavior 成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
主要參考資料
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Freyhof, J., M. Kottelat and A. Nolte, 2005. Taxonomic diversity of European Cottus with description of eight new species (Teleostei: Cottidae). Ichthyol. Explor. Freshwat. 16(2):107-172. (Ref. 55856)
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Estimates based on models
Phylogenetic diversity index (Ref. 82805): PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00871 (0.00345 - 0.02197), b=3.12 (2.89 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
營養階層 (Ref. 69278): 3.3 ±0.5 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 (Preliminary K or Fecundity.).
瀕危性 (Ref. 59153): Moderate vulnerability (35 of 100) .