Serranochromis jallae (Boulenger, 1896)
Nembwe
photo by Mertens, P.

 Family:  Cichlidae (Cichlids), subfamily: Pseudocrenilabrinae
 Max. size:  39.6 cm SL (male/unsexed)
 Environment:  demersal,
 Distribution:  Africa: Kasai system (middle Congo River basin) in Angola (Ref. 11970), upper Lualaba in Democratic Republic of the Congo (Ref. 97233) and the Mweru-Bangweulu area (Ref. 95585, 97233) (upper Congo River basin). Also known from the Okavango delta (Ref. 27501), Caprivi Strip (Ref. 37065), Cunene River (Ref. 13332), upper and middle Zambezi (Lake Kariba, Kafue and Luangwa systems) (Ref. 94654, 97235). Introduced into localities in Zimbabwe (Ref. 94654), into the Sabi River (Ref. 13721) and into Botswana, South Africa and Swaziland (Ref. 6465).
 Diagnosis:   
 Biology:  Lives in well-vegetated quiet waters or near submerged trees or rocks in the lee of the river’s main current, lunging out to capture prey (Ref. 5614). Juveniles occur mainly in lagoons and secondary channels (Ref. 7248, 94654), while adults prefer deep main channels and permanent lagoons (Ref. 7248). Large specimens patrol open water of rivers and lakes, never very far from shore (Ref. 246). Predator on fish but also feeds on aquatic and terrestrial insects, shrimps and small crabs (Ref. 13337). Adults often feed on squeakers (Ref. 7248, 13337, 94654). Mouthbrooder (Ref. 246, 13337, 13721) and multiple spawner (Ref. 13337). Constructs shallow nest on sandy or muddy substrate in shallow water (Ref. 13337). Reported to have adverse impact on native fish species in Zimbabwe (Ref. 94654).
 IUCN Red List Status:   (Ref. 96402)
 Threat to humans:  harmless
 Country info:   
 

 Entered by: Luna, Susan M. - 01.04.92
 Modified by: Geelhand, Dimitri - 04.09.14
 Checked by: Sa-a, Pascualita - 31.08.94

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