Ucwaningo lwaseNew Southern Cross University mayelana nokugeleza kwezibulala-zinambuzane lubonisa ukuthi izibulala-zinambuzane ezisetshenziswa kakhulu zingathinta izimfanzi nama-oyster.
Ososayensi e-National Marine Science Center e-Coffs Harbour ogwini olusenyakatho ye-New South Wales bathole ukuthi i-imidacloprid (egunyazwe ukusetshenziswa njengesibulala-zinambuzane, isibulala-sikhunta kanye nesibulala-zinambuzane e-Australia) ingase ithinte indlela yokuziphatha yokupha izimfanzi.
Umqondisi wesikhungo u-Kirsten Benkendorff (Kirsten Benkendorff) uthe ngezinhlobo zokudla kwasolwandle, bakhathazeke kakhulu ngokuthi izibulala-zinambuzane ezincibilika emanzini zizithinta kanjani izimfanzi.
Uthe: “Zihlobene eduze nezinambuzane, ngakho-ke sacabanga ukuthi zingase zizwela kakhulu izibulala-zinambuzane.Lokhu yikho ngempela esikutholile.”
Ucwaningo olusekelwe elabhorethri lubonise ukuthi ukuchayeka ezibulala-zinambuzane ngokusebenzisa amanzi angcolile noma ukudla kungase kuholele ekuntulekeni komsoco kanye nokuncipha kwekhwalithi yenyama yama-black tiger prawns.
UProfesa Benkendorf wathi: “Izinga lendawo ezungezile esilitholile lifinyelela ku-250 micrograms ilitha, futhi umphumela obulalayo wezimfanzi nama-oyster ungama-micrograms angu-1 kuya ku-5 ilitha.”
“Empeleni ama-shrimp aqala ukufa endaweni ephakathi kwama-micrograms angama-400 ilitha.
“Lokhu sikubiza nge-LC50, okuyisilinganiso esibulalayo esingu-50. Nifuna u-50% wabantu bashone lapho.”
Kepha abacwaningi baphinde bathola kolunye ucwaningo ukuthi ukuchayeka ku-neonicotine kungase futhi kwenze buthaka amasosha omzimba ama-oyster aseSydney.
USolwazi Benkendorf uthe: “Ngakho-ke, lapho kugxilwa kancane kakhulu, umthelela ezimfanzini uyingozi kakhulu, futhi ukhwathu lumelana kakhulu kunezimfanzi.”
"Kodwa kufanele ukuthi siwubonile umthelela kumasosha omzimba, okusho ukuthi kungenzeka ukuthi bangenwe yizifo."
USolwazi Benkendorf uthe: “Ngokombono wokuthi bayawamunca endaweni ezungezile, lokhu kuyinto efanele ukunakwa ngempela.”
Uthe nakuba ucwaningo olwengeziwe ludingeka, bathole ukuthi kuyadingeka ukulawula ngendlela efanele ukusetshenziswa kwezibulala-zinambuzane kanye nokugeleza kwamanzi ezindaweni ezisogwini.
UTricia Beatty, isikhulu esiphezulu se-New South Wales Professional Fishermen Association, uthe lolu cwaningo ludale ingozi futhi uhulumeni waseNew South Wales kufanele athathe izinyathelo ngokushesha.
Uthe: “Sekuyiminyaka eminingi imboni yethu ithi sikhathazeke kakhulu ngomthelela wamakhemikhali enhla nemboni.”
“Imboni yethu ibiza u-A$500 million emnothweni waseNew South Wales, kodwa akugcini lapho, futhi siwumgogodla wemiphakathi eminingi yasogwini.
"I-Australia idinga ukufunda ngokucophelela ukuvinjelwa kwamakhemikhali anjalo eYurophu futhi ikukopishe lapha."
UNksz. Beatty wathi: “Akugcini nje kwezinye izinhlobo ze-crustaceans nama-mollusk, kodwa nakulo lonke uchungechunge lokudla;izinhlobo eziningi zechweba lethu zidla lezo zimfanzi.”
Izibulala-zinambuzane ze-Neonicotinoid-ezivinjelwe eFrance nase-EU kusukela ngo-2018-zibuyekezwe yi-Australian Pesticide and Veterinary Drug Administration (APVMA).
I-APVMA ithe iqale ukubuyekezwa ngo-2019 ngemuva "kokuhlola ulwazi olusha lwesayensi mayelana nezingozi zemvelo kanye nokuqinisekisa ukuthi izimangalo zokuphepha komkhiqizo zihlangabezana nezindinganiso zesimanje."
Isinqumo sokuphatha esihlongozwayo kulindeleke ukuthi sikhishwe ngo-Ephreli 2021, bese kuthi ngemva kwezinyanga ezintathu zokubonisana ngaphambi kokuba kuthathwe isinqumo esingujuqu mayelana nekhemikhali.
Nakuba abacwaningi beveza ukuthi abalimi bamajikijolo bangomunye wabasebenzisi abakhulu be-imidacloprid ogwini lwe-Coffs, inani eliphakeme lemboni likuvikele ukusetshenziswa kwayo kwaleli khemikhali.
URachel Mackenzie, umqondisi omkhulu we-Australian Berry Company, uthe ukusetshenziswa kabanzi kwaleli khemikhali kufanele kuqashelwe.
Uthe: “Itholakala eBaygon, futhi abantu bayakwazi ukulawula izinja zabo ngamazeze.Isetshenziswa kabanzi ekulawuleni umuhlwa osanda kwakhiwa;lena akuyona inkinga enkulu.”
“Okwesibili, ucwaningo lwenziwa elabhorethri ngaphansi kwezimo zaselabhorethri.Ngokusobala, zisandulela kakhulu.
“Masihlukane neqiniso lale mboni yamaberry futhi sicabangele iqiniso lokuthi lo mkhiqizo unezinto ezisetshenziswayo ezingaphezu kuka-300 ezibhaliswe e-Australia.”
UNksz Mackenzie uthe imboni izohambisana ne-100% neziphetho zokubuyekezwa kwe-APVMA kuma-neonicotinoids.
Isevisi ingase iqukathe izinto ezihlinzekwa yi-French Agence France-Presse (AFP), APTN, Reuters, AAP, CNN kanye ne-BBC World Service.Lezi zinto zinelungelo lobunikazi futhi azikwazi ukukopishwa.