Environment: milieu / climate zone / depth range / distribution range
Ekologi
; sötvatten bentopelagisk; pH range: 7.0 - 7.4; dH range: 2 - 5; djupintervall 10 - ? m (Ref. 26334). Temperate; 4°C - 22°C (Ref. 2059); 53°N - 34°N, 113°E - 142°E
Asia: Amur River basin and China.
Length at first maturity / Size / Vikt / Age
Maturity: Lm ?, range 20 - ? cm
Max length : 70.0 cm TL hane/ej könsbestämd; (Ref. 56557); publicerad maxvikt: 8.0 kg (Ref. 56557); rapporterad maxålder: 9 år (Ref. 56557)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Big mouth, upper jaw extend trailing edge of eye. High body, side flat, backside with ridges. Anomalistic macula and dark spots on the sides; 4-5 dark horizontal stripes near the base of dorsal fin (Ref. 85820).
Adults inhabit rivers (Ref. 26334). Are demersal piscivores which have very specialized feeding habits--as soon as they start feeding, they feed solely on fry of other fish species. Typical of stalking predators, they rely on vision for following the movement of prey before leaping forward and snapping at the victim. Prey consist mostly of diurnal fishes whose eyes have color vision and high acuity but cannot function at night. The habitat of the Chinese perch is usually rich in macrophytes and might be very turbid during rainy season (Ref. 28033).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
Bogutskaya, N.G. and A.M. Naseka, 1996. Cyclostomata and fishes of Khanka Lake drainage area (Amur river basin). An annotated check-list with comments on taxonomy and zoogeography of the region. Zool. Inst. Russ. Acad. Sci. :89 p. (Ref. 13397)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Fiskeri: kommersiell; Vattenbruk: kommersiell
Verktyg
Special reports
Download XML
Internet-källor
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01413 (0.01059 - 0.01884), b=3.00 (2.91 - 3.09), in cm total length, based on LWR estimates for this species (Ref.
93245).
Trofisk nivå (Ref.
69278): 4.5 ±0.80 se; based on food items.
Generation time: 7.4 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
Resiliens (Ref.
120179): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (tm=1-2).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (48 of 100).
