Environment: milieu / climate zone / depth range / distribution range
Écologie
marin; saumâtre démersal. Temperate; 47°N - 36°N, 27°E - 54°E
Europe and Asia: Black Sea, Sea of Azov and Caspian Sea basins. Found in the sea only but enter estuaries in some areas (Ref. 92840).
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 24.5 cm TL mâle / non sexé; (Ref. 2058); âge max. reporté: 4 années (Ref. 59043)
Épines dorsales (Total): 7; Rayons mous dorsaux (Total): 15-18; Épines anales 1; Rayons mous anaux: 10 - 15. This species is distinguished from related species in Europe by the following characters: interorbital distance equal to eye diameter; nape completely scaled; pelvic disc fraenum with small, rounded lobes, fraenum length < 1/6 of its width at base; pelvic disc reaching 60-70 % of distance between its origin and anus; first branched ray of second dorsal about twice as long as penultimate ray; scales in midlateral series 57-67 + 2-3 (Ref. 59043).
Occurs inshore, on shelly ground, sand, muddy sand or mud. May enter freshwaters. Feeds on crustaceans (mysids, corophiid amphipods), small fish (gobies), bivalves, polychaetes, and chironomid larvae. Sexually mature at 1 to 2 years (Ref. 4696). Spawns in March to June with females spawning at least twice during this season. Adhesive eggs are deposited under or between stones, shells and aquatic plants and males guard the eggs until hatching (Ref. 59043).
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)
Menace pour l'homme
Harmless
Utilisations par l'homme
Plus d'informations
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00617 (0.00389 - 0.00977), b=3.23 (3.10 - 3.36), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Niveau trophique (Ref.
69278): 3.4 ±0.48 se; based on food items.
Generation time: 2.4 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
Résilience (Ref.
120179): Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (15 of 100).
