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Mesogobius batrachocephalus (Pallas, 1814)

Knout goby
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Mesogobius batrachocephalus
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Turkey country information

Common names: Knout goby, Kurbağa kayabalığı, Kurbağakayası balığı
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from the Black Sea, Sea of Marmara (questionable according to Ref. 92840), Aegean Sea watersheds, European Black Sea watersheds and Anatolian Black Sea watersheds (Ref. 58342); central coast of Black Sea (Sinop and Samsun vicinity) (Ref. 88083). Threatened by habitat loss, eutrophication/pollution and water abstraction (Ref. 58342). Also Ref. 4696, 106151, 115544. Status of threat: Data deficient (Ref. 58342). EurTurk
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/tu.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Fricke, R., M. Bilecenoglu and H.M. Sari, 2007
National Database: CLOMFOT

Common names from other countries

Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa

> Gobiiformes (Gobies) > Gobiidae (Gobies) > Gobiinae
Etymology: Mesogobius: Greek,mesos = half + Latin, gobius = gudgeon (Ref. 45335).
  More on author: Pallas.

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

; süßwasser; brackwasser demersal; tiefenbereich 20 - 100 m (Ref. 4696).   Temperate; 4°C - 18°C (Ref. 2059); 49°N - 40°N, 27°E - 54°E

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

Europe and Asia: Black Sea, and Sea of Azov; lower South Bug and freshwater Lake Siut Giol on Romanian coast.

Size / Gewicht / Alter

Maturity: Lm ?  range ? - ? cm
Max length : 35.0 cm SL Männchen/unbestimmt; (Ref. 92840); max. veröff. Gewicht: 600.00 g (Ref. 50519); max. veröff. Alter: 8 Jahre (Ref. 59043)

Kurzbeschreibung Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt): 7; Rückenflossenweichstrahlen (insgesamt): 16-18; Afterflossenstacheln 1; Afterflossenweichstrahlen: 12 - 16. This species is distinguished from its congeners in freshwaters in Black Sea basin by the following characters: papillae in suborbital area 8-10 vertical rows; total scales in midlateral series 72-85; naked nape (Ref. 59043).

Biologie     Fachlexikon (Englisch) (z.B. epibenthic)

Inhabits inshore, estuaries, brackish- and fresh-water lagoons on sand or rock bottom. Rarely occurs in pure freshwater (Ref. 59043). Found on sand, shell, and rocks near cliffs; at 20-60 m in summer, sometimes as deep as 100 m. Feeds mainly on fish (Ref. 4696). Approaches the sea coasts for spawning in spring (Ref. 2058). Due to large their large size, have certain commercial value in some areas and are popular for sport fishers (Ref. 92840).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

Hauptreferenz Upload your references | Referenzen | Koordinator | Partner

Miller, P.J., 1986. Gobiidae. p. 1019-1085. In P.J.P. Whitehead, M.-L. Bauchot, J.-C. Hureau, J. Nielsen and E. Tortonese (eds.) Fishes of the North-eastern Atlantic and the Mediterranean. Volume 3. UNESCO, Paris. (Ref. 4696)

IUCN Rote Liste Status (Ref. 130435)

  nicht bedroht (LC) ; Date assessed: 01 January 2008

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Harmless




Nutzung durch Menschen

FAO(Publication : search) | FishSource | Sea Around Us

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.6250   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01072 (0.00632 - 0.01817), b=2.95 (2.80 - 3.10), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic level (Ref. 69278):  4.2   ±0.73 se; based on food items.
Widerstandsfähigkeit (Ref. 120179):  mittel, Verdopplung der Population dauert 1,4 - 4,4 Jahre. (tmax=8; tm=3;).
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (33 of 100).