Mesogobius batrachocephalus, Knout goby

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Mesogobius batrachocephalus (Pallas, 1814)

Knout goby
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Mesogobius batrachocephalus
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Classification / Names Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | 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 Écologie

; eau douce; saumâtre démersal; profondeur 20 - 100 m (Ref. 4696). Temperate; 4°C - 18°C (Ref. 2059); 49°N - 40°N, 27°E - 54°E

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

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

Taille / Poids / Âge

Maturity: Lm ?  range ? - ? cm
Max length : 35.0 cm SL mâle / non sexé; (Ref. 92840); poids max. publié: 600.00 g (Ref. 50519); âge max. reporté: 8 années (Ref. 59043)

Description synthétique Morphologie | Morphométrie

Épines dorsales (Total): 7; Rayons mous dorsaux (Total): 16-18; Épines anales 1; Rayons mous anaux: 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     Glossaire (ex. 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 Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Référence principale Upload your references | Références | Coordinateur | Collaborateurs

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)

Statut dans la liste rouge de l'IUCN (Ref. 130435)

  Préoccupation mineure (LC) ; Date assessed: 01 January 2008

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Harmless





Utilisations par l'homme

FAO - Publication: search | FishSource | Sea Around Us

Plus d'informations

Pays
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Écologie
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Noms communs
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Écotoxicologie
Reproduction
Maturité
Frai
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Fécondité
Œufs
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Taille/Âge
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Longueur-longueur
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Morphométrie
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Outils

E-book | Guide de terrain | Générateur de fréquences de longueur | Outil de dynamique de population | Carte par point | Classification Tree | Catch-MSY |

Articles particuliers

Maintenance en aquarium | Articles sur l'espèce | Rapports d'aquaculture

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Sources Internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | FishWatcher | CISTI | Catalog of Fishes: Genre, Espèce | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: génôme, nucléotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Bases de données nationales | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Arbre de Vie | Wikipedia: aller à, chercher | 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).
Niveau trophique (Ref. 69278):  4.2   ±0.73 se; based on food items.
Generation time: 4.4 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
Résilience (Ref. 120179):  Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (tmax=8; tm=3;).
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (33 of 100).
Nutrients (Ref. 124155):  Calcium = 42.9 [25.9, 101.7] mg/100g; Iron = 0.405 [0.209, 0.760] mg/100g; Protein = 18.6 [16.7, 20.2] %; Omega3 = 0.688 [0.324, 1.287] g/100g; Selenium = 10.6 [5.0, 23.0] μg/100g; VitaminA = 22.5 [6.8, 73.4] μg/100g; Zinc = 0.557 [0.392, 0.816] mg/100g (wet weight);