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Text and photos by
Nick Baker, unless otherwise stated

 EcologyAsia 2010
Copyright ©

 
 
   

 

 
   
Common Tilapia (introduced)
   

A 15 cm male in breeding colours, found in a concretised inlet of Kranji Reservoir, Singapore.

Family : CICHLIDAE
Species : Oreochromis mossambicus
Maximum Length : 40 cm

References : F1

 

 

 

Originally from East Africa, this Cichlid has been introduced to many corners of the globe as a food source. It is a hardy species, able to survive in waters with a large pH range, a high level of pollution, and brackish waters with varied salinity. Introduced populations are most successful in canals, ponds and still or slow moving inlets of lakes and reservoirs.

The species is omnivorous and will feed on algae, water plants, insects, fish fry and organic detritus.

The body is laterally compressed, the head and mouth large and the lips pronounced.

The male (pictured here) is dark brown to black with red-edged fins and a yellow-white throat and is solitary in habit. Females are plain grey or brown, and frequently shoal. Males excavate a circular burrow which they defend vigorously and to which they attempt to entice females to breed. The young fry are brooded in the mouth as protection from predators.

The species has been introduced to Indochina, Thailand, Malaysia, Singapore, Philippines and Indonesia.