Mu mwaka wa 2020, inzovu zirenga 350 zarapfuye mu buryo budasobanutse mu majyaruguru ya Botswana, ahanini mu karere ka Okavango Delta.
Nyuma y’ubushakashatsi bwimbitse, byagaragaye ko impamvu nyamukuru yari amazi yandujwe n’ubwoko bw’ibihumyo byitwa cyanobacteria cyangwa alijeyiti (toxic algae), byakuriye mu byuzi inzovu zahahiraga.
Ibi byago byatewe n’ihindagurika ry’ikirere, aho umwaka w’amapfa akomeye (2019) wakurikiwe n’umwaka w’imvura nyinshi (2020), bigateza ukwiyongera gukabije k’ibi bihumyo mu byuzi.
Aya mahindagurika y’ikirere yatumye amazi asanzwe ahari ahura n’ibinyabutabire n’ibindi bisigisigi byo hasi, bikabyara aho ibi bihumyo bibasha gukura neza. Ubushakashatsi bwerekanye ko ibi bihumyo byakwirakwiriye cyane mu mazi yegeranye n’ahabonetse ibisigazwa by’inzovu.
Icyo gikorwa cyerekana uburyo ihindagurika ry’ikirere ryagize uruhare mu kwangiza ubuzima bw’inyamaswa n’ibidukikije, kandi rigaragaza akamaro k’uburyo bwo gukurikirana ireme ry’amazi hakoreshejwe ikoranabuhanga, nk’amasatellite, kugira ngo hirindwe ingaruka nk’izi mu gihe kizaza.
birababaje cyane