Tsikhlidi Tanganyi

ILake Tanganyika, empumalanga ye-Afrika, lakhiwa muva nje - cishe eminyakeni eyizigidi eziyi-10 edlule. Ngenxa yokuguquguquka kwe-tectonic, kwavela i-rift enkulu (i-crack in the crust), eyagcina igcwele amanzi emifuleni eseduze futhi yaba ichibi. Kanye namanzi, abakhileyo kule mifula nabo bangena kuwo, omunye wabo kwakunguSikhilidi.

Ezigidini zeminyaka zokuziphendukela kwemvelo endaweni encintisana kakhulu, kuye kwavela izinhlobo eziningi zezinhlobo ezintsha ze-cichlid, ezihlukahluka kuzo zonke izinhlobo zobukhulu nemibala, kanye nokuthuthukisa izici eziyingqayizivele zokuziphatha, amasu okuzalanisa nokuvikela inzalo.

Ukuzalanisa okuvamile kwezinhlanzi emifuleni kwabonakala kungamukeleki eLake Tanganyika. Ayikho indlela yokuthosa ukucasha phakathi kwamadwala angenalutho, ngakho amanye ama-cichlid asungule indlela yokuzivikela engajwayelekile engatholakali kwenye indawo (ngaphandle kweLake Malawi). Isikhathi sokufukamela kanye nesikhathi sokuqala sokuphila, i-fry ichitha emlonyeni wabazali babo, ngezikhathi ezithile ukuyishiya ukuze idle, kodwa uma kwenzeka ingozi iphinde ifihle endaweni yabo yokukhosela.

Indawo yokuhlala eLake Tanganyika cichlids inezimo ezithile (ukuqina kwamanzi aphezulu, izindawo ezinamatshe angenalutho, ukutholakala kokudla okulinganiselwe) lapho ezinye izinhlanzi zingakwazi ukuhlala khona, ngakho-ke zivame ukugcinwa emathangeni ezilwane. Kodwa-ke, lokhu akusho ukuthi benza izidingo eziphakeme ekunakekeleni kwabo, kunalokho, bayizinhlanzi ezingenasizotha.

Thatha izinhlanzi ngesihlungi