Coptodon thysi

{{Short description|Species of fish}}

{{Speciesbox

| status = CR

| status_system = IUCN3.1

| status_ref = {{cite iucn | author = Moelants, T. | year = 2010 | title = Tilapia thysi | page = e.T21896A9337065| doi = 10.2305/IUCN.UK.2010-3.RLTS.T21896A9337065.en | accessdate = 18 February 2020}}

| taxon = Coptodon thysi

| authority = (Stiassny, Schliewen & Dominey, 1992)

| synonyms = Tilapia thysi Stiassny, Schliewen & Dominey, 1992

| synonyms_ref = {{FishBase|Coptodon|thysi|month=December|year=2019}}

}}

Coptodon thysi is a critically endangered species of fish in the cichlid family. It is endemic to Lake Bermin in Cameroon. It is threatened by pollution and sedimentation from human activities, and potentially also by large emissions of carbon dioxide (CO₂) from the lake's bottom (compare Lake Nyos), although Bermin is too shallow to contain very high amounts of this gas.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}} The specific name honours the Dutch ichthyologist Dirk Thys van den Audenaerde (b. 1934), a pioneer of the study of tilapine cichlids in Africa.{{cite web | url = http://www.etyfish.org/cichlidae2/ | author1 = Christopher Scharpf | author2 = Kenneth J. Lazara | name-list-style = amp | date = 2 October 2019 | title = Order CICHLIFORMES: Family CICHLIDAE: Subfamily PSEUDOCRENILABRINAE (a-g) | work = ETYFish Project Fish Name Etymology Database | accessdate = 18 February 2020 | publisher = Christopher Scharpf and Kenneth J. Lazara}}