Environment: milieu / climate zone / depth range / distribution range
Ecologia
; Água doce; estuarina bentopelágico; pH range: 7.0 - 7.5; dH range: 12 - 15. Temperate; 10°C - 22°C (Ref. 2059)
Europe: restricted to seven streams of Crimea of the Black and Azov Sea basins (Ref. 59043). Asia: Turkey (Ref. 58342).
Comprimento de primeira maturação / Tamanho / Peso / Idade
Maturity: Lm ?, range 10 - ? cm
Max length : 70.0 cm SL macho/indeterminado; (Ref. 59043); common length : 18.0 cm TL macho/indeterminado; (Ref. 1441)
Descrição suscinta
Morfologia | Morfometria
The only species of the genus in Crimea Peninsula which can be distinguished from congeners in Black Sea basin by the possession of the following characters: tip of dorsal fin slightly pointed; posterior margin of dorsal fin slightly concave; last simple dorsal ray weak, serrated along its middle, on 50-70% of its length; lower lip with a median swollen pad; fine dark spots or large blotches in individuals larger than 8 cm SL; scales with small epithelial crests; lateral line with 51-63 scales; and pelvic fin origin about below dorsal fin origin (Ref. 59043).
Occurs from mountain streams with strong current to brackish estuaries, preferring river stretches at 100-600 m above sea level. Spawns on gravel or rock bottom. Feeds mainly on zoobenthos. Threatened due pollution and water abstraction. Water abstraction is expected to increase in all streams of Crimea (Ref. 59043).
Ciclo de vida ou comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Undertake upstream movement to the upper reaches or near rapids to spawn on gravel or rock bottom. Females lay in 1-3 portions non-sticky eggs. Eggs lie among or under pebbles until hatching (Ref. 59043).
Kottelat, M. and J. Freyhof, 2007. Handbook of European freshwater fishes. Publications Kottelat, Cornol and Freyhof, Berlin. 646 pp. (Ref. 59043)
Status na Lista Vermelha da UICN (Ref. 130435)
Ameaça para os humanos
Harmless
Uso pelos humanos
Mais informação
Idade/TamanhoCrescimentoPeso-comprimentoComprimento-comprimentoFrequências de comprimentoMorfometriaMorfologiaLarvasDinâmica larvalRecrutamentoAbundânciaBRUVS
ReferênciasAquaculturaPerfil para aquaculturaEstirpesGenéticaElectrophoresesHereditariedadeDoençasProcessamentoNutrientsConversão de massa
ColaboradoresFotosStamps, Coins Misc.SonsCiguateraVelocidadeTipo de nataçãoÁrea branquialOtólitosCérebrosVisão
Ferramentas
Relatórios especiais
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Fontes da internet
Estimates based on models
Índice de diversidade filogenética (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00676 (0.00347 - 0.01318), b=3.02 (2.85 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Resiliência (Ref.
120179): Baixo, tempo mínimo de duplicação da população 4,5 - 14 anos (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (54 of 100).
