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> Perciformes/Percoidei (Perchs) > Percidae (Perches) > Percinae
Etymology: Gymnocephalus: Greek, gymnos = naked + Greek, kephale = head (Ref. 45335).
More on author: Linnaeus.

Environment: milieu / climate zone / depth range / distribution range Ökologie

; süßwasser demersal; pH range: 7.0 - 7.5; dH range: 10 - 15. Temperate; 4°C - 18°C (Ref. 2059); 49°N - 43°N, 8°E - 30°E

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Europe: Danube drainage.

Length at first maturity / Size / Gewicht / Alter

Maturity: L_m 14.0, range 12 - 16 cm
Max length : 30.0 cm TL Männchen/unbestimmt; (Ref. 556); common length : 15.0 cm TL Männchen/unbestimmt; (Ref. 556); max. veröff. Gewicht: 250.00 g (Ref. 556); max. veröff. Alter: 15 Jahre (Ref. 59043)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt) : 17 - 19. Distinguished from its congeners by having unique characters of 3 discontinuous dark stripes along flank and 55-62 + 4-5 scales along lateral line. Differs further from other species of the genus by having 17-19 dorsal spines (Ref. 59043).

Adults occur in groups in open sand and mud bottom of large rivers with moderate current. Nocturnal, feeding on small invertebrates, especially molluscs, usually crepuscular but may also feed at daytime. Larvae are benthic (Ref. 59043).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

Eggs are attached to stones by females (Ref. 59043).

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Kottelat, M. and J. Freyhof, 2007. Handbook of European freshwater fishes. Publications Kottelat, Cornol and Freyhof, Berlin. 646 pp. (Ref. 59043)

IUCN Rote Liste Status (Ref. 130435: Version 2024-1)

nicht bedroht (LC) ; Date assessed: 01 January 2008

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

Fischereien: nicht kommerziell; Sportfisch: ja; Köder: usually

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 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).

Trophic level (Ref. 69278): 3.4 ±0.43 se; based on food items.

Generation time: 5.5 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.

Widerstandsfähigkeit (Ref. 120179): niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (tm=2-3; tmax=15).

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (42 of 100).

Gymnocephalus schraetser (Linnaeus, 1758)