Introduction: The Orange River sardine (Engraulicypris gariepinus) is a small freshwater fish species found in various regions of southern Africa, including Namibia. It belongs to the Cyprinidae family and plays an important ecological role in aquatic ecosystems.
Distribution: The Orange River sardine is widespread in southern Africa and can be found in different water bodies, including rivers, lakes, and dams in Namibia. It is known to inhabit both flowing and standing waters, where it forms large schools.
Diet: The Orange River sardine is a planktivorous fish, meaning it primarily feeds on tiny zooplankton and phytoplankton. It has specialized gill rakers that help it filter and consume small particles from the water.
behaviour: This species is known for its schooling behaviour, where individuals form large aggregations. By schooling, they gain protection from predators and increase their foraging efficiency.
colouration: The Orange River sardine has a silvery colouration with a streamlined body, allowing it to move swiftly and efficiently through the water.
Size: The Orange River sardine is a relatively small fish, with adults typically reaching lengths of about 5 to 8 centimetres.