Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
; sötvatten bottenlevande; flodvandrande (Ref. 126106); djupintervall 5 - ? m (Ref. 27732). Subtropical; 5°C - 25°C (Ref. 2060); 53°N - 27°S
Asia: Native to Siberia (Tugur and Amur drainages), Sakhalin, Korea, Japan, China south to northern Vietnam. Europe: Introduced in several localities in Rhine (France Ref. 132967, Germany) and Ticino (Italy, north of Milano) drainages, Aral Sea basin, North America, Australia and Hawaii.
This species proved successful in the aquarium fish trade and has also been introduced to other countries (Ref. 1739). At least one country reports adverse ecological impact after introduction.
Storlek / Vikt / Ålder
Könsmognad: Lm ? range ? - ? cm
Max length : 28.0 cm SL hane/ej könsbestämd; (Ref. 59043); common length : 15.0 cm TL hane/ej könsbestämd; (Ref. 12193)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Dorsal view shows the male with larger pectoral fins and the female with fuller abdomen (Ref. 44091). Body is mottled with darker greenish-gray to dark brown markings, against a yellow-brown to brown color; conspicuous adipose crests along the ventral and dorsal mid-lines of the caudal peduncle; 10 barbels; suborbital spine hidden in the skin (Ref. 27732).
Body shape (shape guide): elongated.
Facultative air-breathing (Ref. 126274); Adults occur in rivers, lakes and ponds. Also in swamps and ricefields (Ref. 27732, 119549). They prefer muddy bottoms, where they hide in the muck and leaf litter with only their heads sticking outi, They can also be found under mats of honohono (Commelina diffusa and California grass (Brachiara nuatica). They feed on worms, small crustaceans, insects, insect larvae, and other small aquatic organisms (Ref. 44091).
Male wraps his body around the female and stimulates her to release a cloud of eggs, which the male simultaneously fertilizes (Ref. 44091).
Talwar, P.K. and A.G. Jhingran, 1991. Inland fishes of India and adjacent countries. vol 1. A.A. Balkema, Rotterdam. i-liv + 1-541, 1 map (Ref. 4832)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Potential pest (Ref. 8923)
Mänskliga användningsområden
Fiskeri: kommersiell; Vattenbruk: kommersiell; Akvarium: Kommersiell; bete: occasionally
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Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref.
82804): PD
50 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00457 (0.00391 - 0.00534), b=3.09 (3.05 - 3.13), in cm total length, based on LWR estimates for this species (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.1 ±0.4 se; based on diet studies.
Resiliens (Ref.
120179): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (Fec=2000 eggs).
Sårbarhet i fisket (Ref.
59153): Low to moderate vulnerability (31 of 100).
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