Dangane da dumamar yanayi a Duniya, narkewar kankara mai kankara ke faruwa, wanda shine dalilin hauhawar matakin tekun duniya. Yaya tsawon wannan aikin zai kasance ba a sani ba. Wasu bayanai sunce a shekaru 50 masu zuwa, tekunan duniya zasu zurfafa mita uku. Don haka, a halin yanzu, yawancin yankuna na gabar teku sun riga sun shiga cikin ambaliyar ruwa yayin hadari da guguwa.
Yawancin karatun da aka yi a kan wannan batun an gudanar da su ne don nazarin tasirin tasirin a kan mutane da yanayin su. Koyaya, ba a yi nazarin matsalolin da ke tattare da tasirin hauhawar ruwan teku a kan ciyawar gabar teku da dabbobi ba. Musamman, kunkururan teku suna yin yawancin rayuwarsu a cikin ruwa, amma lokaci-lokaci suna buƙatar zuwa ƙasa don yin ƙwai. Menene ya faru lokacin da ruwan ya isa ƙwai a bakin rairayin bakin teku?
Akwai lokuta lokacin da ruwan teku ya mamaye naman kunkuru ko sabbin offspringa .an da aka haifa. Masana kimiyya basu da masaniya kan illar dogon lokaci zuwa ruwan gishiri akan kwai. Masana kimiyya daga Jami'ar James Cook (a cikin Townsville, Ostiraliya), a ƙarƙashin jagorancin Farfesa David Pike, sun tattara ƙwayoyin kunkuru na teku don gudanar da bincike a Tsibirin Great Barrier Reef. An kirkiro yanayi a dakin gwaje-gwaje don fitar da iskar ga ruwan gishirin teku, kuma kungiyoyin kwai masu kula da kwai sun hadu da yanayi daban-daban. Sakamakon binciken an sake shi a ranar 21 ga Yuli, 2015.
Bayan da aka ajiye ƙwai a cikin ruwan gishiri na awa ɗaya zuwa uku, ƙwarewar su ta ragu da 10%. Tsawan awa shida na rukunin sarrafawa a cikin abubuwan da aka kirkira da wucin gadi ya rage alamun zuwa 30%.
Maimaita hali na gwaji tare da wannan qwai muhimmanci ƙãra da mummunan sakamako.
A cikin 'ya'yan kunkuru da aka kyankyashe, babu wata karkata a ci gaba, amma, a cewar masu binciken, don cimma matsaya ta karshe, ya kamata a ci gaba da nazarin.
Lura da halayya da mahimmin aikin kunkuru zai amsa tambayoyin yadda alamarin hypoxia (yunwar iskar oxygen) ke shafar dabbobi da yadda wannan zai shafi rayuwarsu.
Tawagar masana kimiyya karkashin jagorancin David Pike na ta kokarin fahimtar matsalar da ke tattare da karancin haihuwa na kunkuru a tekun Rhine a cikin Babban Barrier Reef.
Waɗannan alamun suna daga 12 zuwa 36%, yayin da wannan nau'in kunkuru al'ada ce ga zuriya daga 80% na ƙwai da aka sa. Dangane da binciken da aka gudanar tun daga shekarar 2011, masana kimiyya sun kammala cewa babban tasirin tasirin raguwar mutane ya kasance ruwan sama da ambaliyar ruwa, a sakamakon haka ne tsibirin ke fuskantar ambaliyar ruwa.
