Uphando lweYunivesithi eNtsha yaseSouthern Cross malunga nokubaleka kwamayeza okubulala izitshabalalisi lubonisa ukuba amayeza okubulala izitshabalalisi asetyenziswa kakhulu anokuchaphazela i-shrimp kunye ne-oyster.
Iingcali zenzululwazi kwiZiko leSizwe leSayensi yaseLwandle eCoffs Harbour kuNxweme oluMntla lwaseNew South Wales ziye zafumanisa ukuba imidacloprid (evunyiweyo ukuba isetyenziswe njenge-insecticide, i-fungicide kunye ne-parasiticide e-Australia) inokuchaphazela ukuziphatha kwe-shrimp feeding.
Umlawuli weziko uKirsten Benkendorff (Kirsten Benkendorff) uthe kwiintlobo zokutya kwaselwandle, baxhalabile ngokukodwa malunga nendlela izibulala-zinambuzane ezinyibilikayo ezichaphazela ngayo i-shrimp.
Wathi: “Zihlobene ngokusondeleyo nezinambuzane, ngoko siye sacinga ukuba zisenokuba buthathaka kakhulu kwizibulali-zinambuzane.Ngokuqinisekileyo yile nto siyifumeneyo.”
Uphononongo olusekwe kwilabhoratri lubonise ukuba ukuchanabeka kwizitshabalalisi ngamanzi angcolisekileyo okanye ukutya kunokukhokelela ekunqongophaleni kwesondlo kunye nokunciphisa umgangatho wenyama yeeprawn ezimnyama.
Unjingalwazi uBenkendorf wathi: “Umlinganiselo wemekobume esiwufumeneyo uphakame kangangee<em>microgram ezingama-250 ilitha nganye, yaye impembelelo eyingozi yeembaza neembatyisi imalunga ne-1 ukuya kwi-5 yee<em>micrograms ilitha.”
"I-Shrimp eneneni yaqala ukufa kwindawo ekugxilwe kuyo malunga ne-400 micrograms ilitha nganye.
"Le yinto esiyibiza ngokuba yi-LC50, i-dose ebulalayo ye-50. Ufuna i-50% yabemi ukuba bafe apho."
Kodwa abaphandi bafumanise kolunye uphononongo lokuba ukuvezwa kwe-neonicotine kunokwenza buthathaka amajoni omzimba e-oyster yaseSydney.
Unjingalwazi uBenkendorf uthe: "Ke ngoko, kwindawo ephantsi kakhulu, impembelelo kwi-shrimp imbi kakhulu, kwaye iimbatyisi zixhathisa ngakumbi kune-shrimp."
Kodwa kufanele ukuba silibonile ifuthe kumajoni abo omzimba, nto leyo ethetha ukuba banokuchaphazeleka sesi sifo.
Unjingalwazi uBenkendorf wathi: “Ngokwembono yokuba bayawafunxa kwimekobume, ngokuqinisekileyo le yinto efanele ukuqwalaselwa.”
Uthe nangona uphando olongezelelweyo lufuneka, lufumanise ukuba kuyimfuneko ukulawula ngokufanelekileyo ukusetyenziswa kwezibulali-zinambuzane kunye nokuhamba kwamanzi kwiindawo eziselunxwemeni.
UTricia Beatty, umphathi oyintloko weNew South Wales Professional Fishermen Association, uthe uphononongo lubangele ingozi kwaye urhulumente waseNew South Wales kufuneka athathe amanyathelo ngokukhawuleza.
Uthe: “Kangangeminyaka emininzi, umzi-mveliso wethu ubusithi sikhathazeke kakhulu ngefuthe lemichiza ephuma phezulu kweli shishini.
“Ishishini lethu lixabisa i-A500 yezigidi zeedola kuqoqosho lwaseNew South Wales, kodwa ayiphelelanga apho, sikwangumqolo kuluntu oluninzi oluselunxwemeni.
"I-Australia kufuneka ifunde ngononophelo ukuvalwa kwemichiza eYurophu kwaye ikopishe apha."
UNksz. Beatty wathi: “Akupheleli nje kwezinye iicrustaceans neemollusk, kodwa nakulo lonke ikhonkco lokutya;iintlobo ezininzi kwichweba lethu zitya ezo shrimps.”
I-Neonicotinoid pesticides-eye yavalwa eFransi nakwi-EU ukususela ngo-2018-ziye zahlaziywa yi-Australian Pesticide kunye neVeterinary Drug Administration (APVMA).
I-APVMA ithe yaqala uphononongo ngo-2019 emva "kokuvavanya ulwazi olutsha lwesayensi malunga nemingcipheko yokusingqongileyo kunye nokuqinisekisa ukuba amabango okhuseleko lwemveliso ayahlangabezana nemigangatho yangoku."
Isigqibo solawulo esicetywayo kulindeleke ukuba sikhutshwe ngo-Epreli ka-2021, kwaye emva kweenyanga ezintathu zothethwano phambi kokuba kwenziwe isigqibo sokugqibela malunga nekhemikhali.
Nangona abaphandi babonisa ukuba abalimi bamaqunube bangomnye wabasebenzisi abakhulu be-imidacloprid kunxweme lweCoffs, incopho yoshishino iye yakhusela ukusetyenziswa kwayo kwale khemikhali.
URachel Mackenzie, umalathisi oyintloko weAustralian Berry Company, wathi ukusetyenziswa okuxhaphakileyo kwale michiza kumele kuqondwe.
Wathi: “IkwiBaygon, yaye abantu banokuzilawula izinja zabo ngeentakumba.Isetyenziswa ngokubanzi kulawulo lweentubi ezisanda kuphuhliswa;asiyongxaki inkulu le.”
“Okwesibini, uphando lwenziwe elabhoratri phantsi kweemeko zelebhu.Ngokucacileyo, zisandulela kakhulu.
“Masihlukane nenyani yolu shishino lwamaqunube kwaye sithathele ingqalelo into yokuba le mveliso inosetyenziso olungaphezulu kwama-300 olubhalisiweyo eOstreliya.”
UNksz Mackenzie uthe i-shishini liya kuhambelana ne-100% yezigqibo zokuphononongwa kwe-APVMA kwi-neonicotinoids.
Inkonzo inokuqulatha izinto ezibonelelwa yiFrench Agence France-Presse (AFP), APTN, Reuters, AAP, CNN kunye neBBC World Service.Ezi mathiriyeli zi-copyright kwaye azinakukotshwa.