Pseudorasbora parva (Temminck & Schlegel, 1846)
Stone moroko
Pseudorasbora parva
photo by Lorenzoni, M.

Family:  Cyprinidae (Minnows or carps), subfamily: Gobioninae
Max. size:  12.5 cm TL (male/unsexed); max. reported age: 5 years
Environment:  benthopelagic; pH range: 7; dH range: 15
Distribution:  Asia: Amur to Zhujiang [Pearl River] drainages in Siberia, Korea and China (Ref. 59043). Introduced to various areas in Europe and Asia. Several countries report adverse ecological impact after introduction (Ref. 1739).
Diagnosis:  Dorsal spines (total): 3-3; Dorsal soft rays (total): 7-7; Anal spines: 3-3; Anal soft rays: 6-6. Mouth superior and transverse; 6 branched anal rays; barbels absent; distal margin of dorsal convex; large adults with sexually dimorphic coloration (Ref. 43281).
Biology:  Found in a wide variety of habitats, most abundantly in well vegetated small channels, ponds and small lakes (Ref. 59043). Adults occur in cool running water. Feed on small insects, fish and fish eggs (Ref. 30578), and plant material (Ref. 59043). Usually breed in habitats with still or very slow-flowing water (Ref. 59043). Females spawn 3-4 times in a season (Ref. 59043). Males clear the surface of the spawning site and guard the eggs until they hatch (Ref. 59043). Regarded as pest which competes with the fry of other species due to its high reproductive rate (Ref. 1739).
IUCN Red List Status: Least Concern (LC); Date assessed: 08 August 2010 Ref. (120744)
Threat to humans:  potential pest
Country info:   

Entered by: Luna, Susan M. - 25.10.91
Modified by: Reyes, Rodolfo B. - 04.04.18
Checked by: Orlov, Alexei - 08.11.06

Source and more info: For personal, classroom, and other internal use only. Not for publication.

Page created by Jen, 05.08.02, php script by kbanasihan 06/09/2010 ,  last modified by sortiz, 10/02/17