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Rhodeus amarus (Bloch, 1782)

European bitterling
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Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa

> Cypriniformes (Carps) > Acheilognathidae (Bitterlings)
Etymology: Rhodeus: Greek, rhodeos, a,-on = rose (Ref. 45335).
More on author: Bloch.

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

; süßwasser benthopelagisch; tiefenbereich 0 - ? m. Temperate; 60°N - 40°N

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

Europe: central and eastern Europe and northern Asia Minor (Ref. 57778). Basins of North, southern Baltic, Black, western and southern Caspian and Aegean Seas (from Maritza to Struma drainages); Mediterranean basin, only in northern Rhône (France) and Drin drainages (Alabania, Montenegro, Macedonia). Abundant and expanding in most of its range, but locally threatened by water pollution, weed clearing, and stocking of predatory fish (Ref. 59043).

Length at first maturity / Size / Gewicht / Alter

Maturity: Lm 4.4, range 3 - 6 cm
Max length : 11.2 cm TL Männchen/unbestimmt; (Ref. 88166); common length : 5.0 cm TL Männchen/unbestimmt; (Ref. 556); max. veröff. Alter: 5 Jahre (Ref. 9696)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt) : 3; Rückenflossenweichstrahlen (insgesamt) : 8 - 10; Afterflossenstacheln: 3; Afterflossenweichstrahlen: 8 - 10; Wirbelzahl: 34 - 36. Caudal fin with 19 to 20 soft rays. Differs from Rhodeus meridionalis by having sub-inferior mouth (vs. terminal), rostral cap covering all or at least more than half of upper lip (vs. only upper part of upper lip) (Ref. 59043).

Biologie     Fachlexikon (Englisch) (z.B. epibenthic)

Occurs most abundantly in still or slow-flowing water with dense aquatic vegetation and sand-silt bottom as lowland ponds, canals, slow-flowing rivers, backwaters and oxbows, where mussels are present (Ref. 59043). Found among plants over sand and muddy bottoms in shallow waters. Remarkable for its habit of deposing its eggs in the cavity of bivalves (Unio). Feeds mainly on plants and to a lesser degree on worms, crustaceans, and insect larvae. Formerly used for pregnancy tests: females injected with urine from pregnant women protruded their ovipositors (Ref. 6258). Live span is exceptionally up to 5 years but most individuals do not survive the year of their first reproduction and population sizes fluctuate greatly over the years (Ref. 59043).

Life cycle and mating behavior Maturities | Fortpflanzung | Spawnings | Egg(s) | Fecundities | Larven

Spawns in clear, slow-running or still water, often with a muddy bottom. The presence of nearby freshwater mussels is of vital importance. Female deposits eggs within the valves of the mussel. Male sheds sperm into the inhalent current of the respiring mussel and thereby, fertilizes the eggs. Fry remain in the mussel until protection is not anymore required.

Hauptreferenz Upload your references | Referenzen | Koordinator | Partner

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)

  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; Aquarium: Kommerziell; Köder: occasionally
FAO - Publication: search | FishSource |

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Internet Quellen

AFORO (otoliths) | Alien/Invasive Species database | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | FishWatcher Einträge suchen | CISTI | Catalog of Fishes: Gattung, Arten | DiscoverLife | DORIS | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: Genom, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Nationale Datenbanken | Otolith Atlas of Taiwan Fishes | Öffentliche Aquarien | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Gehe zu, Suchen | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01047 (0.00781 - 0.01405), b=3.11 (3.05 - 3.17), in cm total length, based on LWR estimates for this species (Ref. 93245).
Trophic level (Ref. 69278):  3.0   ±0.34 se; based on food items.
Generation time: 4.4 ( 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; tmax=5; Fec=40).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (37 of 100).