Russian Federation country information

Common names: Caspian goby, Caspian tadpole goby, Kaspiiskaya pugolovka
Occurrence: native
Salinity: freshwater
Abundance: common (usually seen) | Ref: Berg, L.S., 1965
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Common in the Volga delta near Astrakhan (Ref. 2058). Found in the northern and middle (near Chechen' Island and the mouth of the Sulak River) Caspian Sea, the Volga Delta, the new mouth of the Terek River and the Samur River (Ref. 26334). EurRus
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/rs.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Reshetnikov, Y.S., N.G. Bogutskaya, E.D. Vasil'eva, E.A. Dorofeeva, A.M. Naseka, O.A. Popova, K.A. Savvaitova, V.G. Sideleva and L.I. Sokolov, 1997
National Database:

Common names from other countries

Kaspiiskaya pugolovka, 大头瘤鰕虎鱼, Kaspische Kaulquappengrundel, ... more

Классификация / Names народные названия | синонимы | Catalog of Fishes(род, виды) | ITIS | CoL | WoRMS | Cloffa

> Gobiiformes (Gobies) > Gobiidae (Gobies) > Gobiinae
Etymology: Benthophilus: Greek, benthos = depth of the sea + Greek, phyle, that loves (Ref. 45335).
More on author: Pallas.

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

; пресноводный демерсальный; пределы глубины 0 - 25 m (Ref. 59043). Temperate; 4°C - 20°C (Ref. 2059); 51°N - 38°N, 45°E - 57°E

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Europe and Asia: Caspian Sea, along most coasts; Volga up to Astrakhan.

Size / Вес / Возраст

Maturity: L_m ? range ? - ? cm
Max length : 11.6 cm TL самец/пол неопределен; (Ref. 2058)

Краткое описание определительные ключи | морфология | морфометрия

This species is distinguished from its congeners by the following characters: tubercles larger than granules, tubercles of equal size in dorsal row 24-26, ventral row 21-22, upper lateral row up to 20 but the lower one is usually absent; numerous granules, densely set and appearing as small spines covering head, back, flanks and caudal peduncle; a semicircular patch of granules along upper eye margin; chin barbel thick and conical; D1 III-IV; body plain grey (Ref. 59043).

Inhabits shallow coastal waters and estuaries usually 0.5-10 m deep, over mud bottom; also in lower reaches or rivers. It is widely distributed but rare. During warm seasons, it prefers coastal waters; in northern Caspian Sea, it moves to deeper waters (20-25) in winter. This species lives for about a year. it forms schools during spawning season (April-July) over hard bottom with mollusc shells where females lay eggs in at least two portions. Feeds mostly on molluscs and fish (small gobies), also worms and crustaceans. (Ref.59043). Males are larger than females. Mature males become completely naked (Ref. 2058).

Life cycle and mating behavior Maturities | размножение | Spawnings | Egg(s) | Fecundities | личинки

Основная ссылка Upload your references | ссылки | координатор | соавторы

Berg, L.S., 1965. Freshwater fishes of the U.S.S.R. and adjacent countries. volume 3, 4th edition. Israel Program for Scientific Translations Ltd, Jerusalem. (Russian version published 1949). (Ref. 2058)

Статус Красного Списка МСОП (Ref. 130435)

Не вызывающий беспокойства (LC) ; Date assessed: 01 January 2008

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Угроза для людей

Harmless

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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=0.00708 (0.00333 - 0.01504), b=3.09 (2.92 - 3.26), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.3 ±0.4 se; based on size and trophs of closest relatives

устойчивость к внешним воздействиям (Ref. 120179): высокий, минимальное время удвоения популяции до 15 месяцев (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Benthophilus macrocephalus (Pallas, 1787)