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Perciformes/Percoidei (Perchs) >
Percidae (Perches) > Percinae
Etymology: Gymnocephalus: Greek, gymnos = naked + Greek, kephale = head (Ref. 45335).
Eponymy: Eugene Kornel Balon (1930–2013) was a Canadian ichthyologist and writer. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; Água doce bentopelágico; pH range: 6.8 - 7.8; dH range: 10 - 20. Temperate; 10°C - 20°C (Ref. 12468)
Europe: Danube (from delta to Germany) and Dniepr (from delta to Kiev) drainages; expected in Dniestr.
Tamanho / Peso / Idade
Maturity: Lm ?  range ? - ? cm
Max length : 15.0 cm SL macho/indeterminado; (Ref. 59043)
Descrição suscinta
Chaves de identificação | Morfologia | Morfometria
Espinhos dorsais (total) : 14 - 16. Distinguished uniquely from its congeners by its body depth, 27-30% SL. Differs further from other species of the genus by the combination of the following characters: flank grey with a few large, irregular, dark blotches; and dorsal fin with 14-16 spines (Ref. 59043).
Inhabits open sandy and muddy bottom in backwaters and large rivers with moderate current. Undertake migration from river mainstreams to backwaters to spawn. Nocturnal, feeding on small invertebrates (Ref. 59043).
Ciclo de vida ou comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
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: Version 2024-1)
Ameaça para os humanos
Harmless
Uso pelos humanos
Ferramentas
Relatórios especiais
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Fontes da internet
Estimates based on models
Índice de diversidade filogenética (Ref.
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01047 (0.00465 - 0.02359), b=3.05 (2.86 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.5 ±0.37 se; based on food items.
Resiliência (Ref.
120179): médio(a), tempo mínimo de duplicação da população 1,4 - 4,4 anos (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).