Akatswiri ofufuza a ku Australian Institute of Marine Science apanga chipambano chachikulu pankhondo yolimbana ndi nsomba za starfish zotchedwa korona-of-thorns, pa Great Barrier Reef.

Mtsogoleri wamkulu wa kafukufuku wa AIMS Dr Sven Uthicke ndi biochemist Jason Doyle, pamodzi ndi katswiri wa echinoderm Dr Miles Lamare wochokera ku yunivesite ya Otago, ku New Zealand, apanga njira yotsika mtengo yodziwira DNA ya tizilombo todya ma coral.

Dr Uthicke adati njirayi ithandizira kuyang'anira ndikuzindikira msanga tizilombo ta m'mphepete mwa nyanja, chomwe chimatchedwanso korona-of-thorns sea star, zomwe zimapangitsa kuti oyang'anira m'mphepete mwa nyanja akhale ndi miliri posachedwa.

"Ndilo kafukufuku wa majini omwe tidapanga kuti tipeze mphutsi za m'nyanja ya plankton ndipo tatha kusintha njira," adatero Dr. Uthicke.

"Takhala tikuchita izi kwa zaka zitatu zapitazi, ndipo tatha kusintha izi kuti zikhale zovuta kudziwa munthu wamkulu wam'madzi wam'madzi."

Kuyang'anira zachilengedwe mpaka pano kwalephera kuzindikira magawo oyambilira a mliri womwe walepheretsa kuchitapo kanthu panthawi yake.

Dr Uthicke adati njira yomwe ilipo tsopano yodziwira miliriyo inali yofufuza zam'matanthwe pogwiritsa ntchito mitundu ina koma njirazi zikazindikira kuti zafalikira, mliriwu nthawi zambiri umakhala wokhazikika.

"Njira zoyang'anira zowonongeka zimangodziwa pafupifupi 5 peresenti ya tizilombo toyambitsa matenda pamiyala, koma njira yatsopanoyi idzatithandiza kuzindikira bwino ngati pali anthu ambiri," adatero Dr Uthicke.

"Imawerengera kuchuluka kwa ma jini omwe amapezeka m'madzi a m'nyanja kuchokera m'matanthwe pogwiritsa ntchito njira ina yotchedwa digital droplet PCR."

Pantchito yaposachedwa ya kumunda, pogwiritsa ntchito kafukufuku pa matanthwe 11 a Great Barrier Reef, DNA ya starfish ya minga inapezeka pa miliri yomwe ikudwala.

Mosiyana ndi zimenezi, DNA ya starfish ya korona ya minga inalibe m'matanthwe a pambuyo pa kuphulika kwa anthu pambuyo poti anthu aphwanyidwa, komanso m'matanthwe 'asanayambike'.

Kuphulika kwachinayi kuyambira zaka za m'ma 1960 kudayamba cha m'ma 2010 kumpoto kwa Great Barrier Reef ku Australia ndipo awona kutayika kwakukulu kwa chivundikiro cha coral chifukwa cha njala yowopsa ya starfish, zomwe zidapangitsa kuti izi zithandizire kwambiri pavuto la matanthwe a coral.

Mliriwu wafalikira mpaka kummwera kwa Townsville m'mphepete mwa Great Barrier Reefs, ndipo ukuyembekezeka kupitilira kumwera.

Ntchito yofufuzayi idathandizidwa ndi National Environmental Science Programme (NESP), Great Barrier Reef Marine Park Authority ndi philanthropist Ian Potter Foundation.