Zvidzidzo zvakawana kuti runoff kubva neonicotinoid pesticides inokanganisa hutano hwe shrimp uye oyster

Tsvagiridzo yeNew Southern Cross University pamusoro pemushonga wezvipembenene inoyerera inoratidza kuti mishonga inoshandiswa zvakanyanya inogona kukanganisa shrimp nema oyster.
Masayendisiti paNational Marine Science Center muCoffs Harbour kuNorth Coast yeNew South Wales vakawana kuti imidacloprid (inotenderwa kushandiswa semushonga wezvipembenene, fungicide uye parasiticide muAustralia) inogona kukanganisa maitiro ekudyisa shrimp.
Mukuru weCenter Director Kirsten Benkendorff (Kirsten Benkendorff) akataura kuti kune marudzi ezvokudya zvegungwa, vanonyanya kunetseka nezvekuti mishonga inonyungudika nemvura inokanganisa sei shrimp.
Akati: “Idzo dzine hukama hwepedyo nezvipembenene, saka takafungidzira kuti dzinogona kunge dzinonzwa zvakanyanya nemishonga yezvipembenene.Izvi ndizvo zvatakawana. "
Ongororo yakaitwa murabhoritari yakaratidza kuti kusangana nemishonga yezvipembenene kuburikidza nemvura yakasvibiswa kana chikafu kunogona kukonzera kushomeka kwekudya uye kuderedza nyama yemhando yeblack tiger prawns.
Purofesa Benkendorf akati: “Kuwanda kwemhoteredzo kwatakaona kwakakwirira se250 micrograms parita, uye kukuvadza kusingaurayiwi neshrimp nemaoyster kungangoita 1 kusvika ku5 micrograms parita.
"Shrimp dzakatanga kufa pane imwe nzvimbo yezvakatipoteredza inenge 400 micrograms parita.
"Iyi ndiyo yatinoti LC50, iyo inouraya ye50. Unoda kuti 50% yevanhu vafire ikoko."
Asi vaongorori vakawanawo mune imwe ongororo yekuti kufumurwa neonicotine kunogona zvakare kunetesa immune system yeSydney oysters.
Purofesa Benkendorf akati: "Saka, pakudzika kwakaderera, kukanganisa pashrimp kwakakomba, uye oyster inoshingirira kupfuura shrimp."
"Asi isu tinofanira kunge takaona maitiro ekudzivirira immune system, zvinoreva kuti vanogona kubatwa nechirwere."
Purofesa Benkendorf akati: “Mumurangariro wokuti vanoatora kubva mumhoteredzo, ichi zvirokwazvo chimwe chinhu chakafanira ngwariro.”
Akataura kuti kunyangwe kumwe kutsvagisa kuchidikanwa, zvakaona kuti zvakakosha kubata nemazvo kushandiswa kwemishonga yezvipembenene uye kuyerera munzvimbo dzemahombekombe.
Tricia Beatty, mukuru mukuru weNew South Wales Professional Fishermen Association, akati ongororo iyi yakakonzera njodzi uye hurumende yeNew South Wales inofanira kutora matanho nekukasika.
Iye akati: "Kwemakore akawanda, indasitiri yedu yanga ichiti tiri kushushikana zvikuru nekukanganisa kwemakemikari ari kumusoro kweindasitiri."
“Indasitiri yedu inokosha A$500 miriyoni kuhupfumi hweNew South Wales, asi kwete izvozvo chete, isu tiri zvakare musana wenharaunda zhinji dzemahombekombe.
"Australia inofanirwa kunyatsodzidza kurambidzwa kwemakemikari akadaro muEurope uye kukopa pano."
Mai Beatty vakati: “Kwete chete pane dzimwe mhuka dzecrustaceans nemolluscs, asiwo pacheni yose yezvokudya;mhando dzakawanda dziri mugomba redu remvura dzinodya shrimps idzodzo.”
Neonicotinoid mishonga yezvipembenene-iyo yakarambidzwa muFrance neEU kubvira 2018-yakaongororwa neAustralia Pesticide uye Veterinary Drug Administration (APVMA).
APVMA yakataura kuti yakatanga ongororo muna 2019 mushure me "kuongorora ruzivo rutsva rwesainzi nezve njodzi yezvakatipoteredza uye kuona kuti zvichemo zvekuchengetedza zvigadzirwa zvinosangana nemaitiro anhasi."
Sarudzo yekutonga inotarisirwa kupihwa muna Kubvumbi 2021, uyezve mushure memwedzi mitatu yekutaurirana sarudzo yekupedzisira pamakemikari isati yaitwa.
Kunyange zvazvo vatsvakurudzi vachitaura kuti varimi veberry ndevamwe vevanonyanya kushandisa imidacloprid pamhenderekedzo yeCoffs, iyo yepamusoro yeindastiri yakadzivirira kushandiswa kwayo kwekemikari iyi.
Rachel Mackenzie, director director weAustralian Berry Company, akati kushandiswa kwakapararira kwekemikari iyi kunofanira kuzivikanwa.
Akati: “Iri muBaygon, uye vanhu vanogona kudzora imbwa dzavo nenhata.Inoshandiswa zvakanyanya kune ichangobva kugadzirwa kutonga kwemujuru;iri harisi dambudziko guru.”
“Chechipiri, ongororo yakaitwa murabhoritari pasi pemamiriro emurabhoritari.Zviri pachena kuti ndeekutanga.
"Ngatisiyanei nenyaya yeindasitiri yemaberry iyi uye tifunge kuti chigadzirwa ichi chine mashandisirwo anodarika mazana matatu akanyoreswa kuAustralia."
Amai Mackenzie vakati iyo indasitiri ichaita 100% kutevedzera APVMA yekuongorora mhedziso pane neonicotinoids.
Sevhisi iyi inogona kunge iine zvinhu zvinopihwa neFrench Agence France-Presse (AFP), APTN, Reuters, AAP, CNN uye BBC World Service.Izvi zvinyorwa zvine kodzero uye hazvigone kukopa.


Nguva yekutumira: Aug-26-2020