Ukubonakala kwenqwaba ye izinhlanzi ezifile emabhishi nasemifuleni Ezinsukwini zamuva nje, lesi siphepho siye sabangela ukukhathazeka okukhulu phakathi kwemiphakathi, ochwepheshe, nezinhlangano zezemvelo. Lesi simo, esiye saphindwa ezifundeni eziningana, akusona isigameko esisodwa, kodwa kunalokho inkinga edinga ukunakwa okuphuthumayo kanye nezinyathelo eziphathekayo.
Izithombe zamabhange de peces izidumbu ezingaphili ezinqwabelene emabhange ziye zashiya abaningi bedangele futhi befuna izimpendulo. Ukungabi bikho kolwazi olucacile mayelana nezimbangela zokushona kwabantu izinhlanzi ezifile emabhishi kwandisa ukukhathazeka kanye nesidingo sophenyo kanye nokwenziwa ngokushesha.
Yini ebangela ukuba izinhlanzi eziningi kangaka zife?
Ukuhlaziywa kochwepheshe abavela ku-Institute of Limnology of the University of Guadalajara kubonisa izimbangela eziyisithupha okungenzeka lokho kungaba ngemuva kwalezi ziqephu zokufa:
- Ukudoba okungekho emthethweni: Ukusetshenziswa kwamanetha abamba izinhlanzi ezincane ezilahlwa kamuva, zife ngenxa yokuthi azikho inzuzo yokuhweba.
- Ukungcola okuqondile: Ukukhishwa kwamanzi angcolile, kokubili ezindlini nasezindaweni zokwelashwa eziseduze, kukhuthaza ukukhula kwamagciwane futhi kunciphisa umoya-mpilo emanzini, okuthinta impilo yasemanzini.
- Izinguquko ze-Ecosystem: Izinguquko ezingazelelwe, njengokuqhuma kwe-phytoplankton (isb., i-Microcystis), zingadala izimo ze i-hypoxia ezibangela ukufa kwezinhlanzi.
- Iziqongo zokungcoliswa kwamakhemikhali: Ukukhishwa ngengozi kwemikhiqizo efana ne-chlorine, i-ammonia, noma amakhemikhali asetshenziswa emisebenzini yezokuvakasha nakho kunomthelela kulezi zimo.
- Ukuba khona kwamagciwane: Ukuhlaziya kwakamuva kubonisa ukuthi E. coli amagciwane Ivame ukuvela ezindaweni ezithintekile, okubonisa ukungcoliswa kwe-microbiological.
- Izici ze-Meteorological: Izehlakalo zesiphepho ezinamandla zingashintsha imingcele yamanzi, zandise ukufa kwezinhlanzi.
Ukusabela Komphakathi Nezicelo
Izinhlangano zemvelo kanye namaqembu ezakhamuzi azwakalisa ukukhathazeka kwabo ngokuntuleka kolwazi olunembile ngembangela yalezi zenzakalo. Ezifundeni ezifana neBurgos, uMxhumanisi Wesigodi Esingaphansi ucele ukuthi iziphathimandla ezibhekele ukulawulwa kwamanzi zinikeze izincazelo futhi zisebenze ngempumelelo.
Omakhelwane abaningi bayakugcizelela ukuthi lezi ziqephu awamushaIzindawo eziningana bezilokhu zinezinkinga ezifanayo isikhathi eside, ngezinhlanzi ezifile zohlobo olufanayo nobukhulu obufanayo, okungase kubonise izimbangela ezivamile noma eziqhubekayo.
Idinga isinyathelo esisheshayo
Izinga lokufa elikhulayo ligqugquzele ingcindezi enkulu yezakhamizi ukuthi iqalise uphenyo oluphelele kanye nezinyathelo zokulungisa eziphuthumayo. Kuyadingeka ukucacisa izimbangela zakamuva futhi ubuyekeze iziqephu ezedlule ezihlala zingachazwanga.
Nakuba imiphumela yamanzi nokunye ukuhlaziywa kwezinto eziphilayo kutholakala, kunjalo okubalulekile ukuvikela impilo yemvelo yasemanzini kanye nokuxazulula izinkinga zokuphatha okungenzeka zibe nomthelela kulo monakalo wemvelo.
Lezi zehlakalo zakamuva zigcizelela ukubaluleka kokuvikela izinga lamanzi kanye nokuhlukahluka kwemvelo kwamabhishi nemifula yethu. Inhlanganisela yokungcola, imisebenzi yabantu, nezinguquko zemvelo kudinga ukuqapha njalo kanye nokusabela okusheshayo, okuhlangene phakathi kweziphathimandla nezakhamuzi.
