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Perciformes/Cottoidei (Sculpins) >
Cottidae (Sculpins)
Etymology: Cottus: Greek, kottos = a fish (Ref. 45335); gratzianowi: Named for Valerian Ivanovich Gratzianow [Gratsianov] (1876−1932), the author of the first taxonomic review of Russian fishes "Versuch einer Übersicht der Fische des Russischen Reiches in systematischer und geographischer Hinsicht" (Gratzianow 1907), who described Cottus koshewnikowi. The original latinised spelling of the surname (Gratzianow) was retained.
Eponymy: Valerian Ivanovich Gratzianow (Gratsianov) (1876–1932) was a Russian ichthyologist and zoologist. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
بوم شناسي
; آب شيرين موجوداتی که در محدوده وسیعی از آبهای آزاد از نزدیک بستر و یا روی کف بستر، در قسمت های میان آبی تا سطح آب و در برخی گونه ها با قابلیت پرواز، زندگی و تغذیه می کنند.. Temperate
Europe: Ukhtomitsa River in the Onega River drainage, White Sea basin, Russia.
Size / Weight / سن
Maturity: Lm ? range ? - ? cm
Max length : 6.3 cm SL جنس نر / بدون خواص جنسي; (Ref. 101366)
توصيف مختصر
كليدهاي شناسايي | ريخت شناسي | ريخت ستجي بوسيله انداره گيري
خارهاي باله پشتي (کل) : 6 - 8; شعاع نرم باله پشتي (کل) : 15 - 17; شعاع نرم باله مخرجي: 12 - 13; مهره ها: 32 - 34. Cottus gratzianowi is distinguished from all congeners in Europe east of the Meuse (except C. koshewnikowi) in having the following combination of characters: no transverse dark bands on the pelvic fin; a single median chin canal pore; an incomplete lateral line not reaching behind the anal-fin insertion; and lateral line located considerably above the mid-line of the flank. It differs from C. koshewnikowi by a larger eye (horizontal diameter 23?28% HL, equal to or exceeding snout length vs. 16?25% HL, less than snout length), a rounded caudal fin (vs. commonly truncated), frequent presence of one to three branched rays in median part of the pectoral fin (vs. usual absence), an interrupted supratemporal canal commissure with 4 pores (vs. non-interrupted, with 3 pores), the pelvic fin extending to the anus in both sexes (vs. not reaching the anus), a short lateral-line canal extending to below the fifth to tenth ray of the second dorsal fin, with 15?24 pores, with few interruption (vs. commonly extending to below the 9th to 15th ray of the second dorsal fin, with modally 21?27 pores, with few to numerous interruptions), abdominal vertebrae commonly 10 (vs. 11), and contrasting black blotches on all fins including pelvic and anal fins (vs. no blotches on pelvic and anal fins) (Ref. 101366).
During summer, this species is found in a relatively cool small river with moderate to rapid current, gravel and cobble bottom, and not very dense submerged aquatic vegetation (Ref. 101366).
Life cycle and mating behavior
بلوغ | تولید مثل | تخم ریزی | تخم ها | Fecundity | توزاد ( لارو)
Sideleva, V.G., A.M. Naseka and Z.V. Zhidkov, 2015. A new species of Cottus from the Onega River drainage, White Sea basin (Actinopterygii: Scorpaeniformes: Cottidae). Zootaxa 3949(3):419-430. (Ref. 101366)
وضعيت در فهرست قرمز IUCN (Ref. 130435: Version 2024-2)
خطر برای انسان ها
Harmless
استفاده انسانی
ماهي گيري – شيلات: از بی علاقه گی
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
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=0.00955 (0.00344 - 0.02648), b=3.09 (2.85 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
جهندگی (Ref.
120179): زياد, كمينه زمان لازم براي دو برابر شدن جمعيت ، كمتر از 15 ماه (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
