Cottus gratzianowi

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Cottus gratzianowi Sideleva, Naseka & Zhidkov, 2015

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drawing shows typical species in Cottidae.

Classification / Names ຊື່ສາມັນ | ຄຳສັບຄ້າຍຄືກັນ | Catalog of Fishes(ຕະກຸນ, ຊະນິດ) | ITIS | CoL | WoRMS | Cloffa

> 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..

Environment: milieu / climate zone / depth range / distribution range ນິເວດວິທະຍາ

; ນ້ຳຈືດ ກ່ຽວກັບ (ຢູ່)ເທິງຊັ້ນພື້ນດິນໃນທະເລເປີດ. Temperate

ການແຜ່ກະຈາຍ ປະເທດ | ເຂດ FAO | ລະບົບນິເວດ | ການປະກົດຕົວ | Point map | ການແນະນຳ | Faunafri

Europe: Ukhtomitsa River in the Onega River drainage, White Sea basin, Russia.

ຂະໜາດ / ນ້ຳໜັກ / Age

Maturity: Lm ?  range ? - ? cm
Max length : 6.3 cm SL ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. 101366)

Short description ສະລີລະວິທະຍາ | ການວັດແທກຮູບຮ່າງລັກສະນະພາຍນອກຂອງດິນ,ສັດ,ປາ…

ຄີ (ໜາມ)ແຂງຢູ່ຫຼັງປາ (ທັງໝົດ): 6 - 8; ຄີຫຼັງຂອງປາ (ຄີອ່ອນ) (ທັງໝົດ): 15-17; ຄີກົ້ນຂອງປາ: 12 - 13; ສັດທີ່ມີກະດູກສັນຫຼັງ: 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).

ຊີວະສາດ     ຄຳແປສັບ (ຕ.ຢ. epibenthic)

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 ການຈະເລີນເຕັມໄວ | ການສືບພັນ | ການວາງໄຂ່ | ໄຂ່ | ຄວາມດົກຂອງໄຂ່ປາ | ຕົວອ່ອນ

Main reference Upload your references | ເອກະສານອ້າງອີງ | ຜູ້ປະສານງານ | ຜູ້ຮ່ວມມື

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)

IUCN Red List Status (Ref. 130435)


CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
ຊັ້ນເຂດຮ້ອນ (Ref. 69278):  3.2   ±0.4 se; based on size and trophs of closest relatives
ຄວາມຢືດຢຸ່ນ (Ref. 120179):  ສູງ, ປະຊາກອນຕຳ່ສຸດທີ່ໃຊ້ເວລາສອງໜ້ອຍກວ່າ 15 ເດືອນ (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).