The kululu (Sarotherodon steinbachi) e.g. Vikululu - Nikululu - Akululu - Bokululu - Hekululu is a species of cichlid endemic to Lake Barombi Mbo in western Cameroon. This species can reach a length of 11.3 centimetres (4.4 in) SL. It is threatened because of pollution and sedimentation due to human activities. It is potentially also threatened by large emissions of carbon dioxide (CO2) from the lake's bottom (compare Lake Nyos), although studies indicate that Barombo Mbo lacks excess amounts of this gas.
The specific name honours the entomologist Gerhard Steinbach (1923-2016) of the Humboldt University of Berlin who was a member of an expedition which was led by zoologist Martin Eisentraut on which the type of this cichlid was collected.
- Moelants, T. (2010). "Sarotherodon steinbachi". IUCN Red List of Threatened Species. 2010: e.T19911A9110654. doi:10.2305/IUCN.UK.2010-3.RLTS.T19911A9110654.en. Retrieved 16 November 2021.
- Froese, Rainer; Pauly, Daniel (eds.) (2013). "Sarotherodon steinbachi" in FishBase. April 2013 version.
- Freeth, S.J.; C.O. Ofoegbu; and K.M. Onuoha (1992). Natural Hazards in West and Central Africa, pp. 50—51. ISBN 978-3-663-05239-5
- Christopher Scharpf & Kenneth J. Lazara (25 September 2018). "Order CICHLIFORMES: Family CICHLIDAE: Subfamily PSEUDOCRENILABRINAE (p-y)". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 9 February 2019.