Gilchristella aestuaria, the Gilchrist's round herring or estuarine round-herring, is a member of the herring family Clupeidae that occurs off the coasts of Southern Africa. It is the only species in its genus, which was named for John Dow Fisher Gilchrist (1866–1926). Information There are no indications of major threats to this species. It is considered to be of least concern for becoming an endangered species. Size The average length of the G. aestuaria as an unsexed male is about ten centimeters. Habitat The Gilchristella aestuaria can be found in a marine environment and in freshwater. The habitat is located in subtropical climates. This species is primarily found in estuaries, lagoons, lakes, and rivers. It is considered an extremely important fish in estuaries of South Africa . This small sardine-like fish lives in large shoals and provides an important link in the food chain as a food source to larger fish and water birds. This fish does not survive in an aquarium, presumably dying from capture myopathy or stress. Distribution The Gilchristella aestuaria is distributed throughout the following areas: Africa Lake Piti Mozambique Southern African coast Saldanha Bay Orange River Namibia South Africa Eastern Cape Province KwaZulu-Natal Northern Cape Province References External links Gilchrist's round herring Marine fauna of Southern Africa Gilchrist's round herring Taxa named by John Dow Fisher Gilchrist Monotypic fish genera Monotypic marine fish genera Monotypic ray-finned fish genera