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Hypophthalmichthys nobilis (Richardson, 1845)

Bighead carp
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Hypophthalmichthys nobilis
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Germany country information

Common names: Gefleckter Silber Karpfen (Marmor Karpfen), Gefleckter Silberkarpfen, Marmorkarpfen
Occurrence: not established
Salinity: freshwater
Abundance: occasional (usually not seen) | Ref: Winkler, H.M., K. Skora, R. Repecka, M. Ploks, A. Neelov, L. Urho, A. Gushin and H. Jespersen, 2000
Importance: | Ref:
Aquaculture: commercial | Ref: FAO, 1997
Regulations: restricted | Ref:
Uses: no uses
Comments: Established in aquaculture through assisted/artificial reproduction but not in the wild (Ref. 1739).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/gm.html
National Fisheries Authority: http://www.ble.de/index.cfm?8C712107D9244972B3C193AC1917DCE7#Handelsbezeichnungen
Occurrences: Occurrences Point map
Main Ref: Welcomme, R.L., 1988
National Database: AGRDEU

Common names from other countries

Classificatie / Names Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

> Cypriniformes (Carps) > Xenocyprididae (East Asian minnows)
Etymology: Hypophthalmichthys: Greek, hypo = under + Greek, ophthalmos = eye + Greek, ichthys = fish (Ref. 45335);  nobilis: nobilis, meaning noble (Ref. 10294).
  More on author: Richardson.

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

; zoet water; brak water benthopelagisch; potamodroom (Ref. 51243); diepte 0 - ? m (Ref. 59043).   Temperate; 1°C - 38°C (Ref. 120904); 34°N - 21°N, 101°E - 123°E (Ref. 121042)

Verspreiding Landen | FAO regio's | Ecosystemen | Voorkomen | Point map | Introducties | Faunafri

Asia: China. Introduced to numerous countries and has achieved a near global distribution. However, its breeding requirements are very specialized and stocks are maintained by artificial reproduction or continuous importation. Several countries report adverse ecological impact after introduction (Ref. 1739). Often confused with Hypophthalmichthys molitrix (Ref. 59043).

Lengte bij maturiteit / Grootte / Gewicht / Leeftijd

Maturity: Lm 64.2, range 55 - 70 cm
Max length : 146 cm SL mannelijk / geslacht onbekend; (Ref. 59043); common length : 60.0 cm TL mannelijk / geslacht onbekend; (Ref. 2059); max. gepubliceerd gewicht: 40.0 kg (Ref. 59043); max. gerapporteerde leeftijd: 20 Jaren (Ref. 59043)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Dorsale stekels (totaal) : 3; Dorsale zachte stralen (totaal) : 7; Anale stekels: 1 - 3; Anale zachte stralen: 12 - 14. Body with numerous scattered small black blotches. Keels extend from pelvic base to anus. Barbels absent. Posterior margin of last simple dorsal ray not serrated. Branched anal rays 13-14.5 (Ref. 13274). Differs from Hypophthalmichthys molitrix by having scaled keel from pelvic to anal, 240-300 long gill rakes, head length 27-35% SL, dark overall coloration, flank with dark, large, very irregularly shaped blotches, fin bases and inferior parts of head and belly yellowish (Ref. 59043).

Biologie     Verklarende woordenlijst (bv. epibenthic)

In its natural environment, it occurs in rivers with marked water-level fluctuations, overwinters in middle and lower stretches. Forages in shallow (0.5-1.5 m deep) and warm (over 24°C) backwaters, lakes and flooded areas with slow current. Feeds on zooplankton throughout its life under natural conditions (Ref. 120904). Breeds in very deep, very turbid and warm water above 18°C (usually 22-30°C), with high current (1.1-1.9 m/s) and high oxygen concentrations. Stocked to large rivers and almost all still water bodies as lakes and ponds. In aquaculture, adults can survive brackish water (up to 7 ppt) when released into estuaries and coastal lakes. Feeds mainly on zooplankton, but also takes algae as food (Ref. 59043). Bottom feeding fish (Ref. 6459). Undertakes long distance upriver migration at start of a rapid flood and water-level increase (in April-July depending on locality). Spawns in upper water layer or even at surface during floods. Spawning ceases if conditions change and resumes again when water level increases. After spawning, adults migrate for foraging habitats, Larvae drift downstream and settle in floodplain lakes, shallow shores and backwaters with little or no current. During autumn-winter, when temperature drops to 10°C, juveniles and adults form separate large schools and migrate downstream to deeper places in main course of river to overwinter (Ref. 59043). Marketed fresh and frozen.

Levenscyclus en paargedrag Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven

Produces up to 100,000 eggs (Ref. 2059). Eggs are yellowish, transparent, and hatch after about 2 days at temperatures around 25°C while drifting downstream in the deep open-water layer (Ref. 59043).

Hoofdreferentie Upload your references | Referenties | Coördinator | Medewerkers

Kottelat, M., 2001. Freshwater fishes of northern Vietnam. A preliminary check-list of the fishes known or expected to occur in northern Vietnam with comments on systematics and nomenclature. Environment and Social Development Unit, East Asia and Pacific Region. The World Bank. 123 p. (Ref. 44416)

Status op de Rode Lijst van het IUCN (Ref. 130435)

  Onvoldoende gegevens (DD) ; Date assessed: 02 September 2010

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Potential pest




Gebruik door de mens

Visserij: van groot commercieel belang; Aquacultuur: commercieel; Aquarium: Publieke aquaria
FAO(Aquaculture systems: productie, soortsprofiel; visserij: productie; publication : search) | FishSource | Sea Around Us

Meer informatie

Trophic ecology
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Estimates based on models

Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 0.6250   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00861 - 0.01161), b=3.10 (3.06 - 3.14), in cm Total Length, based on LWR estimates for this species (Ref. 93245).
Trofisch niveau (Ref. 69278):  2.8   ±0.33 se; based on food items.
Weerstandsvermogen (Ref. 120179):  Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (tm=3-5; tmax=20; K=0.15-0.27; Fec=50,000-1 million).
Fishing Vulnerability (Ref. 59153):  High vulnerability (64 of 100).
Prijsklasse (Ref. 80766):   Unknown.