Young Oreochromis mweruensis feed on epiphytic filamentous algae in swampy areas , but also accept small invertebrates and zooplankton, a tendency they lose with age . Adults feed on filamentous algae and detritus and bottom deposits, but those that migrated to the deeper northern end feed almost exclusively on plankton .
Dorsal spines (total): 15 - 17; Dorsal soft rays (total): 11 - 14; Anal spines: 3; Anal soft rays: 9 - 12; Vertebrae: 30 - 32. Diagnosis: scales on cheek in 2-3 rows; caudal scales variable, not on the inter-radial membranes except at the base; never stiffening the fin; genital papilla large and tuberculate or scalloped, tasseled in breeding males; generally lighter or darker olive-green; breeding male iridescent dark green to blue-black on head, body and vertical fins; red edge to dorsal and caudal fins . : short and / or deep; Cross section: compressed.
Behavioural data for Oreochromis Mweruensis is currently being reviewed.
Diet information for Oreochromis Mweruensis is currently being compiled.
Spawns along the banks of lakes/rivers at an average depth of 12 to 13 m. Mating territory largely occupied by a low mound with 6-12 grooves or crests radiating from the small central concave area (star-shaped nest). Males build the star-shaped nests on a sandy substrates.
Freshwater; brackish; benthopelagic; non-migratory. Tropical; 7°S - 12°S
epiphytic filamentous algae in swampy areas (Ref
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