Rhodeus sericeus (Pallas, 1776)
Bitterling
Rhodeus sericeus
photo by Naseka, A.M.

Family:  Cyprinidae (Minnows or carps), subfamily: Acheilognathinae
Max. size:  11 cm TL (male/unsexed); max. reported age: 5 years
Environment:  benthopelagic; pH range: 5.80000019073486 - 6.30000019073486; dH range: 2 - 3; depth range - 0 m, potamodromous
Distribution:  Asia. Amur basin and Sakhalin Island, Russia. Introduced elsewhere.
Diagnosis:  Dorsal spines (total): 3-3; Dorsal soft rays (total): 8-10; Anal spines: 3-3; Anal soft rays: 8-10; Vertebrae: 34-38
Biology:  Occurs in ponds, lakes, marshes, muddy and sandy pools and backwaters of rivers (Ref. 5723). Feeds mainly on plant material but also on small larvae of insects. Its occurrence is related to those of the bivalve Anodonta cygnea and other freshwater mussels (Ref. 30578). Known for its habit of laying its eggs in the mantle cavity of freshwater mussels (Ref. 1739). Reproduction takes place from April to June (Ref. 30578).
IUCN Red List Status: Lower Risk: least concern (LR/lc); Date assessed: 01 August 1996 Ref. (120744)
Threat to humans:  harmless
Country info:   
 

Entered by: Froese, Rainer - 01.05.91
Modified by: Sampang-Reyes, Arlene G. - 06.04.10
Checked by: Binohlan, Crispina B. - 10.08.94

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