Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
; sötvatten; brackvatten bentopelagisk; pH range: 7.0 - ? ; dH range: 15 - ?; djupintervall 0 - 10 m (Ref. 6898). Tropical; 18°C - 22°C (Ref. 2059)
Asia: China, North and South Korea, Hong Kong, Japan and Amur River basin (Ref. 1441) to Red River drainages; Mongolia (Ref. 57778). Several countries report adverse ecological impact after introduction. Introduced in Iran (Ref. 39702).
Length at first maturity / Size / Vikt / Age
Könsmognad: Lm 10.3, range 9 - 13 cm
Max length : 29.0 cm TL hane/ej könsbestämd; (Ref. 128900); common length : 16.9 cm SL hane/ej könsbestämd; (Ref. 35840); publicerad maxvikt: 232.30 g (Ref. 128900)
Taggstrålar i ryggfenan (totalt) : 3; Mjukstrålar i ryggfenan (totalt) : 7; Taggstrålar i analfenan: 3; Mjukstrålar i analfenan: 11 - 13. Completed lateral line, went downward suddenly at the pectoral fin, forming an angle, going upward along the anal fin, till the middle of the caudal fin. Green gray in the back, white in the stomach (Ref. 33303).
Body shape (shape guide): fusiform / normal.
The species is common in large streams and reservoirs in Hong Kong but not favored as a table fish because the flesh is unpalatable and very bony; abundant in China where it is canned. The main bulk of the diet includes zooplankton, insects, crustaceans, algae and detritus.
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
Berg, L.S., 1964. Freshwater fishes of the U.S.S.R. and adjacent countries. volume 2, 4th edition. Israel Program for Scientific Translations Ltd, Jerusalem. (Russian version published 1949). (Ref. 1441)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Potential pest
Human uses
Fiskeri: mindre kommeriell; sportfisk: ja
Verktyg
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00676 (0.00594 - 0.00770), b=3.07 (3.03 - 3.11), in cm total length, based on LWR estimates for this species (Ref.
93245).
Trofisk nivå (Ref.
69278): 2.8 ±0.32 se; based on food items.
Resiliens (Ref.
120179): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (tm=3).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (43 of 100).
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