Fly larva yejenasi Chaoborus sp
Kunyangwe kusvika parizvino zvaifungidzirwa kuti mombe ndidzo chete mhuka, kunze kwevanhu, dzakakonzera kukosha kwekudziya kwepasirese, izvozvi masayendisiti akawana mamwe akavashamisa. Chaoborus inobhururuka maruva.
Izvi zvipenyu zvinogara mumarefu nemadziva, zvichidya maruva eumhutu kusvika zvave vanhu vakuru uye zvobuda mumvura kuti zviitezve uye mushure menguva pfupi vafa, sezvo ivo vasingape chikafu, kana ivo vanoita saizvozvo nekita.
Chidzidzo chakaburitswa mu »Sayenzi inoshuma», Yakaitwa nechikwata chemasayendisiti kubva kuYunivhesiti yeGeneva (Switzerland) mukubatana neLeibniz Institute for Freshwater Ecology uye Inland Fisheries muBerlin (IGB), yaona kuti makonye enhunzi yeChaoborus anotora mukana weiyo methane gasi uye kuidzingira mumvura.
Makonye aya, ayo panguva yemasikati anoramba akavanda munzvimbo dzakadzika dzedziva, husiku anozadza tumwe tumwe tumwe mweya nemhepo uye anokwira kumusoro achitsvaga chikafu. Nekudaro, nyanzvi dzakaona pane kumwe kudzika, kumanikidza kwemvura kwakanyanya zvekuti kunotadzisa mabhegi aya kuzadza, zvinoita maruva anoshandira kukumwa kwemethane inowanikwa mumatope ekuizadza nekuishandisa pamwe ne »zvinoyangarara».
Mufananidzo - UNIGE
Nekuda kweiri zano rekupona, makonye anogona kuchengetedza anosvika 80% simba, saka anoda chikafu chidiki. Asi izvi zvinounza dambudziko: Methane igasi rinowanzoitika mumatope edziva, asi parinoshandiswa nemakonye kuzvitutumadza, rinonyungudika mumvura. Nekudaro, iyo inogona kusvika kune mhepo, ichibatsira mukudziya kwepasi.
Nokudaro, nyanzvi dzinoti 20% yemethane gasi inoburitswa nemvura yakachena. Kuwanda kwemakonye ejenasi Chaoborus mumadhamu ari pakati pe2000 kusvika 130.000 vanhu pamamita mita. Kudzivirira kuwanda kwayo, uye sezvineiwo kudzikisa huwandu hwemethane yakaburitswa mudenga, vanyori vanokurudzira kudzora kukuru kwemvura yegungwa, uye neaya masosi anokonzera kusvibiswa kwemethane.