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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

Classification / Names Nomi Comuni | Sinonimi | Catalog of Fishes(Genere, Specie) | 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 Ecologia

; acqua dolce; salmastro demersale; distribuzione batimetrica 20 - 100 m (Ref. 4696).   Temperate; 4°C - 18°C (Ref. 2059); 49°N - 40°N, 27°E - 54°E

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri

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

Size / Peso / Age

Maturity: Lm ?  range ? - ? cm
Max length : 35.0 cm SL maschio/sesso non determinato; (Ref. 92840); peso massimo pubblicato: 600.00 g (Ref. 50519); Età massima riportata: 8 anni (Ref. 59043)

Short description Chiavi di identificazione | Morfologia | Morfometria

Spine dorsali (totale) : 7; Raggi dorsali molli (totale) : 16 - 18; Spine anali: 1; Raggi anali molli: 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).

Biologia     Glossario (es. 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 Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve

Main reference Upload your references | Bibliografia | Coordinatore | Collaboratori

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 Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 01 January 2008

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

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

Informazioni ulteriori

Trophic ecology
Prede
Diet compositions
Food consumptions
Food rations
Predatori
Ecology
Ecologia
Home ranges
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances
Life cycle
Riproduzione
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larve
Dinamica popolazioni larvali
Distribution
Stati
Aree FAO
Ecosystems
Presenze
Introduzioni
BRUVS - Videos
Anatomy
Gill areas
Cervelli
Otoliths
Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
Suoni dei Pesci
Diseases / Parasites
Toxicities (LC50s)
Genetics
Genetica
Electrophoreses
Heritabilities
Human related
Aquaculture systems
Profili di acquacoltura
Varietà
Ciguatera cases
Stamps, coins, misc.
Outreach
Collaboratori
Taxonomy
Nomi Comuni
Sinonimi
Morfologia
Morfometria
Immagini
References
Bibliografia

Strumenti

Special reports

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Fonti Internet

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes(Genere, Specie) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Database Nazionali | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, ricerca) | World Records Freshwater Fishing | Zoological Record

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.
Resilienza (Ref. 120179):  Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (tmax=8; tm=3;).
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (33 of 100).