Wildlife Library

Aquatic Life

Fish and other aquatic species residing in lakes and rivers worldwide.

Aquatic Life of East Africa

Rich freshwater ecosystems from the Great Lakes to coastal rivers and wetlands.

Nile Perch

Nile Perch

Least Concern

Scientific Name: Lates niloticus

Weight Range: Up to 440 lbs (200 kg)

Key Detail: Massive predator introduced to Lake Victoria; caused extinction of hundreds of endemic cichlid species.

Nile Tilapia

Nile Tilapia

Least Concern

Scientific Name: Oreochromis niloticus

Weight Range: Up to 9.9 lbs (4.5 kg)

Key Detail: One of world's most important aquaculture species; mouthbrooders protecting eggs.

African Lungfish

African Lungfish

Least Concern

Scientific Name: Protopterus annectens

Weight Range: Up to 8.8 lbs (4 kg)

Key Detail: Can breathe air and estivate in mud cocoons for years during drought; living fossil.

Electric Catfish

Electric Catfish

Least Concern

Scientific Name: Malapterurus electricus

Weight Range: Up to 44 lbs (20 kg)

Key Detail: Generates up to 350 volts to stun prey and defend; ancient Egyptian depictions known.

Bayad Catfish

Bayad Catfish

Least Concern

Scientific Name: Bagrus bajad

Weight Range: Up to 33 lbs (15 kg)

Key Detail: Large predatory catfish with long whiskers; important food fish across Nile basin.

African Tigerfish

African Tigerfish

Least Concern

Scientific Name: Hydrocynus forskahlii

Weight Range: Up to 33 lbs (15 kg)

Key Detail: Ferocious predator with razor-sharp teeth; known for spectacular aerial attacks on birds.

Featherfin Squeaker

Featherfin Squeaker

Least Concern

Scientific Name: Synodontis eupterus

Weight Range: Up to 1.5 lbs (0.7 kg)

Key Detail: Upside-down swimmer with long feathery dorsal fin; produces squeaking sounds.

Victoria Carp

Victoria Carp

Critically Endangered

Scientific Name: Labeo victorianus

Weight Range: Up to 11 lbs (5 kg)

Key Detail: Endemic to Lake Victoria; decimated by Nile Perch introduction and habitat degradation.

Burton's Haplochromis

Burton's Haplochromis

Least Concern

Scientific Name: Astatotilapia burtoni

Weight Range: Up to 0.2 lbs (100 g)

Key Detail: Model organism for cichlid evolution; mouthbrooder with complex social behaviors.

Elephantfish

Elephantfish

Least Concern

Scientific Name: Mormyrus kannume

Weight Range: Up to 2.2 lbs (1 kg)

Key Detail: Weakly electric fish using electrolocation; elongated snout probes muddy bottoms for invertebrates.

Nile Bichir

Nile Bichir

Least Concern

Scientific Name: Polypterus bichir

Weight Range: Up to 7.7 lbs (3.5 kg)

Key Detail: Living fossil with armor-like scales and multiple dorsal finlets; can breathe air.

African Sharptooth Catfish

African Sharptooth Catfish

Least Concern

Scientific Name: Clarias gariepinus

Weight Range: Up to 130 lbs (59 kg)

Key Detail: Can breathe air and "walk" on land between water bodies; incredibly hardy survivor.