Environment: milieu / climate zone / depth range / distribution range
Ecologia
marinhas; estuarina demersal. Temperate; 4°C - 20°C (Ref. 13614); 47°N - 41°N, 32°E - 42°E
Europe: Azov and northern Black Sea basins from Bulgaria to eastern Crimea; in freshwater, found only in Danube delta.
Tamanho / Peso / Idade
Maturity: Lm ? range ? - ? cm
Max length : 20.0 cm TL macho/indeterminado; (Ref. 13614)
Descrição breve
Chaves de identificação | Morfologia | Morfometria
This species is distinguished from other related species in the Black Sea basin by the following characters: pelvic disc 80-100% of distance between its origin and anus; cycloid scales completely cover predorsal area and nape; pelvic disc fraenum with angular lobes, fraenum length 1/6-1/2 of its width at base; scales in midlateral series 58-70 + 2-4; snout length 1.3-1.5 times in eye diameter; first branched ray of second dorsal about as long as penultimate ray; posterior part of first dorsal without black spot (Ref. 59043).
Rarely enters freshwaters (Ref. 26334). Inhabits inshore habitats, brackish lagoons, estuaries and lower part of large rivers; usually associated with rock bottom or sunken trees. Spawns at 2 years, from December to April where females can repeat spawning during a season. Feeds mostly on crustaceans (Ref. 59043).
Life cycle and mating behavior
Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas
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. An annotated check-list of the freshwater fishes of Russia. J. Ichthyol. 37(9):687-736. (Ref. 26334)
Categoria na Lista Vermelha da IUCN (Ref. 130435)
Ameaça para o homem
Harmless
Utilização humana
Ferramentas
Relatórios especiais
Descarregue XML
Fontes da internet
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=0.01023 (0.00477 - 0.02194), b=3.02 (2.84 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.6 ±0.4 se; based on size and trophs of closest relatives
Resiliência (Ref.
120179): Médio, tempo mínimo de duplicação da população 1,4 - 4,4 anos (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
