freshwater, brackish
Tilapia
Oreochromis niloticus
Deep-bodied, laterally compressed fish with a long dorsal fin. It typically displays a dark grey or silver coloration with vertical bars or bands along the body and tail. Fin rays are prominent and spines are present in the dorsal and anal fins.
- Habitat
- Native to Africa and the Middle East but widely introduc…
- Size & weight
- Typically ranges from 20 to 40 cm in length, though they…
- Diet
- Omnivorous, feeds on phytoplankton, periphyton, aquatic…
Identified More freshwater, brackish →
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Physical characteristics
Deep-bodied, laterally compressed fish with a long dorsal fin. It typically displays a dark grey or silver coloration with vertical bars or bands along the body and tail. Fin rays are prominent and spines are present in the dorsal and anal fins.
Habitat & distribution
Native to Africa and the Middle East but widely introduced globally; found in rivers, lakes, ponds, and estuaries. They are highly adaptable to various water qualities and salinity levels.
Behavior
Highly social and often found in schools. They are diurnal, active during daylight hours, and are known for their territoriality during nesting and spawning.
Diet
Omnivorous, feeds on phytoplankton, periphyton, aquatic plants, small invertebrates, and detritus. They utilize suction feeding and gill rakers to filter food.
Reproduction
Mouthbrooders; the female carries fertilized eggs and fry in her mouth for protection. Males create circular nests in the substrate to attract females for spawning.
Ecological role
Primarily a primary consumer that keeps algae and aquatic vegetation in check. Often serves as a significant prey source for larger predatory fish and birds.
Similar species
Blue Tilapia (Oreochromis aureus), which has a more metallic blueish tint and lacks the distinct vertical barring on the tail fin found in O. niloticus.
Identification tips
Look for the deep, oval body shape, the continuous long dorsal fin with sharp spines, and vertical bars on the caudal (tail) fin.
Interesting facts
Tilapia are known for their extreme tolerance to high temperatures and low dissolved oxygen levels, allowing them to survive in habitats where other fish cannot.