Hypophthalmichthys molitrix, Silver carp : fisheries, aquaculture

Hypophthalmichthys molitrix (Valenciennes, 1844)

Silver carp
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Hypophthalmichthys molitrix
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Classificatie / Namen 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); molitrix: molitrix, approximately grinder (referring to the pharyngeal grinding apparatus) (Ref. 10294).
More on author: Valenciennes.

Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied Ecologie

; zoet water; brak water benthopelagisch; potamodroom (Ref. 126106); diepte 0 - 20 m (Ref. 6898). Subtropical; 6°C - 30°C (Ref. 37797); 63°N - 8°N, 73°E - 148°E (Ref. 120939)

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Asia: Native to most major Pacific dainages of East Asia from Amur to Xi Jiang, China (Ref. 59043) and Hanoi, Vietman (Ref. 120939). Introduced around the world for aquaculture and control of algal blooms. Several countries report adverse ecological impact after introduction (Ref. 1739). Often confused with Hypophthalmichthys nobilis (Ref. 59043).

Lengte bij maturiteit / Grootte / Gewicht / Leeftijd

Maturiteit: Lm 51.7  range ? - ? cm
Max length : 120 cm TL mannelijk / geslacht onbekend; (Ref. 86798); common length : 18.0 cm SL mannelijk / geslacht onbekend; (Ref. 35840); max. gepubliceerd gewicht: 50.0 kg (Ref. 30578); max. gerapporteerde leeftijd: 20 Jaren (Ref. 121658)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Dorsale stekels (totaal) : 0; Dorsale zachte stralen (totaal) : 7 - 10; Anale stekels: 0; Anale zachte stralen: 11 - 17. Diagnosis: Body olivaceous to silvery. Barbels absent. Keels extend from isthmus to anus. Edge of last simple dorsal ray not serrated. Branched anal rays 12-13.5 (Ref. 13274). It differs from Hypophthalmichthys nobilis by having sharp scaleless keel from pectoral region to anal origin, 650-820 long, slender gill rakers, head length 24-29% of standard length, and plain pale coloration, greenish grey above, whitish below (Ref. 59043).


Body shape (shape guide): fusiform / normal; Cross section: oval.

Biologie     Verklarende woordenlijst (bv. epibenthic)

Adults are found in their natural range in rivers with marked water-level fluctuations and overwinters in middle and lower stretches, swimming just beneath the surface. They feed in shallow (0.5-1.0 m deep) and warm (over 21°C) backwaters, lakes and flooded areas with slow current on phytoplankton and zooplankton (Ref. 30578, 10294). Bigger individuals from about 1.5 cm SL feed only on phytoplankton while larvae and small juveniles prey on zooplankton (Ref. 59043). Breeding occurs in rivers or tributaries over shallow rapids with gravel or sand bottom, in upper water layer or even at surface during floods when the water level increases by 50-120 cm above normal level. Conditions for spawning include high current (0.5-1.7 m/s), turbid water, temperatures above 15°C (usually 18-26°C) and high oxygen concentrations (Ref. 59043). Spawning ceases if conditions change (especially sensitive to water-level fall) and resumes again when water level increases. Juveniles and adults form large schools during spawning season. Mature individuals undertake long distance upriver migration at start of a rapid flood and water-level increase, able to leap over obstacles up to 1 m. After spawning, adults migrate to foraging habitats, In autumn, adults move to deeper places in main course of river where they remain without feeding. Larvae drift downstream and settle in floodplain lakes, shallow shores and backwaters with little or no current (Ref. 59043). In aquaculture, it can survive brackish water (up to 7 ppt) when released into estuaries and coastal lakes (Ref. 59043). Escape from fish farms are widely known even as they are stocked in large rivers and almost all still water bodies like lakes and ponds. Utilized fresh for human consumption and also introduced to many countries where its ability to clean reservoirs and other waters of clogging algae is appreciated even more than its food value (Ref. 9987). One of among 3 or 4 species of cyprinids whose world production in aquaculture exceeds 1 million tons per year (Ref. 30578).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

Hoofdreferentie Upload uw referenties | Referenties | Coördinator | Medewerkers

Skelton, P.H., 1993. A complete guide to the freshwater fishes of southern Africa. Southern Book Publishers. 388 p. (Ref. 7248)

Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))

  Gevoelig (NT) ; Date assessed: 20 January 2011

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Potential pest





Gebruik door de mens

Visserij: commercieel; Aquacultuur: commercieel
FAO - Aquacultuursystemen: soortsprofiel, production search; visserij: soortsprofiel, landings search; Publication: search | FishSource | Sea Around Us

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genoom
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Internetbronnen

AFORO (otoliths) | Exoten/Invasieve soorten database | Aquatic Commons | BHL | Cloffa | Websites from users | Bekijk FishWatcher | CISTI | Catalog of Fishes: Genus, Soort(en) | DiscoverLife | ECOTOX | FAO - Aquacultuursystemen: soortsprofiel, production search; visserij: soortsprofiel, landings search; Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | Nationale databanken | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | Publieke aquaria | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: ga naar, zoek | World Records Freshwater Fishing | Zoological Record

Schattingen op basis van modellen

Fylogenetische diversiteitsindex
(Ref. 82804) 		PD50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight a=0.00891 (0.00772 - 0.01029), b=3.10 (3.06 - 3.14), in cm total length, based on LWR estimates for this species (Ref. 93245).
Trofisch niveau
(Ref. 69278) 		2.3   ±0.1 se; based on diet studies.
Generation time 5.6 (4.5 - 6.8) years. Estimated as median ln(3)/K based on 10 growth studies.
Weerstandsvermogen
(Ref. 120179) 		Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (K=0.16-0.29; tm=2-6).
Kwetsbaarheid van de visserij
(Ref. 59153) 		High vulnerability (55 of 100). 🛈
Prijsklasse
(Ref. 80766) 		Unknown.
Voedingsstoffen
(Ref. 124155) 		Calcium = 37.9 [16.1, 116.8] mg/100g; Iron = 1.37 [0.69, 2.65] mg/100g; Protein = 17.3 [16.1, 18.5] %; Omega3 = 0.306 [0.176, 0.554] g/100g; Selenium = 30.1 [16.4, 59.9] μg/100g; VitaminA = 8.45 [2.15, 37.85] μg/100g; Zinc = 0.445 [0.263, 0.805] mg/100g (wet weight); based on nutrient studies.