Marine biologists are investigating a mystery skin disease afflicting whitetip reef sharks in Malaysia, with some early reports suggesting rising sea temperatures could be to blame.
Named for the distinctive white tips on their fins, whitetip reef sharks are typically found resting in schools around reefs in the day and are a popular attraction for divers. They become active at night to hunt for small fish and other animals.
Pictures of one of the sharks with what appeared to be spots and lesions on its head went viral on social media in April after being taken by an underwater photographer off Sabah state on Borneo island.
Soon after, divers at Sipadan island, a famed diving destination nearby, and a team of experts from the state's university and government and conservation groups began seeing the skin disease in every group of sharks they encountered.
Attempting to diagnose what could be causing the illness, the team found the sea surface temperature at Sipadan had risen to 29.5 degrees Celsius in May, a degree higher than in 1985.
"We can almost certainly pin the warming ocean as having a role in what we are seeing with the sickly sharks in Sipadan," said Davies Austin Spiji, a senior marine biologist with non-profit conservation group Reef Guardian, ruling out human factors as Sipadan is a marine protected area where fishing is strictly prohibited, and there are no settlements or industries nearby.
The reported sightings coincide with reports of coral bleaching in the area, according to Mohamed Shariff Mohamed Din, a professor in aquatic veterinary studies with Universiti Putra Malaysia.
"We cannot ignore that changes are happening there due to higher temperatures," Mohamed Shariff said.
A full scientific study is yet to be done, however.
In May, the research team tried but failed to capture some of the sharks to secure samples for testing, said Mabel Manjaji-Matsumoto, a senior lecturer with the Borneo Marine Research Institute of Universiti Malaysia Sabah.
"If we can get shark specimens, we will surely at least be able to find out the pathogenic cause of the lesions," Manjaji-Matsumoto said, adding that the team plans to make another attempt in July.
Reuters
Mon Jun 14 2021
![Malaysia's reef sharks stricken with mystery skin disease Malaysia's reef sharks stricken with mystery skin disease](https://resizer-awani.eco.astro.com.my/tr:w-177,h-100,q-100,f-auto/https://img.astroawani.com/2021-06/71623633483_shark.jpg)
A whitetip reef shark with white spots and lesions, said by marine biologists could be linked to rising sea temperatures, lies on the seabed off the coast of Sipadan Island, Malaysia in this picture obtained from social media - REUTERS Pic
![Warga Thailand mengaku tidak bersalah seleweng diesel Warga Thailand mengaku tidak bersalah seleweng diesel](https://resizer-awani.eco.astro.com.my/tr:w-177,h-100,q-100,f-auto/https://img.astroawani.com/2024-07/41721103547_WargaThailandWitt.jpg)
Warga Thailand mengaku tidak bersalah seleweng diesel
Seorang warga Thailand mengaku tidak bersalah di Mahkamah Sesyen Alor Setar atas pertuduhan menyeleweng 322 liter minyak diesel.
Lilitan reben putih tak langgar peraturan - Timbalan Speaker
Ramli berkata, perkara itu juga adalah merupakan keputusannya dan bukan dibuat oleh Yang Dipertua Dewan Rakyat, Tan Sri Johari Abdul.
Kos pampasan tanah fasa 1B proses projek LPB Sabah RM1.2 bilion - Alexander
Anggaran kos pengambilan balik tanah bagi keseluruhan Fasa 1B proses pengambilan tanah dan penilaian pampasan tanah bagi Projek Lebuh Raya Pan Borneo Sabah (LPB Sabah) berjumlah RM1.2 bilion.
KR sedia tambah baik SOP pembinaan lebuhraya
Alaxender berkata kementerian bersedia untuk mendedahkan laporan kajian insiden jika ia melibatkan kemalangan berskala besar dan meragut nyawa.
![Reman suspek kes keropok beracun disambung dua hari Reman suspek kes keropok beracun disambung dua hari](https://resizer-awani.eco.astro.com.my/tr:w-177,h-100,q-100,f-auto/https://img.astroawani.com/2024-07/81721107133_keropokberacunrem.jpg)
Reman suspek kes keropok beracun disambung dua hari
Tempoh reman terhadap seorang pemilik kebun disambung selama dua hari, bagi membantu siasatan kematian dua kanak-kanak yang meninggal dunia akibat makan keropok beracun.
KPM alukan pesara guru ajar Bahasa Inggeris
Jelas Fadhlina Sidek pesara-pesara guru telah banyak membantu usaha KPM dalam meningkatkan PdP bahasa Inggeris termasuk melalui Program Highly Immersive Programme Mentor (HIP Mentor).
![Tidak perlu lagi kemas kini status COVID-19 dalam MySejahtera - KKM Tidak perlu lagi kemas kini status COVID-19 dalam MySejahtera - KKM](https://resizer-awani.eco.astro.com.my/tr:w-177,h-100,q-100,f-auto/https://img.astroawani.com/2024-07/81721100784_TBmysj.jpg)
Tidak perlu lagi kemas kini status COVID-19 dalam MySejahtera - KKM
Jika positif COVID-19 melalui ujian kendiri, pesakit boleh mengunjungi klinik dan hospital berdekatan bagi mendapatkan pengesahan.
![Mayat hampir reput dijumpai di rumah usang Mayat hampir reput dijumpai di rumah usang](https://resizer-awani.eco.astro.com.my/tr:w-177,h-100,q-100,f-auto/https://img.astroawani.com/2023-12/41702437730_maut.jpg)
Mayat hampir reput dijumpai di rumah usang
Mayat hampir reput ditemui di sebuah rumah usang di Kesang Laut, berdekatan pusat timbang Jabatan Pengangkutan Jalan (JPJ) pada Ahad.
Wanita dakwa dituduh Rafizi fail saman
Seorang wanita memfailkan saman terhadap Menteri Ekonomi, Rafizi Ramli bagi menuntut permohonan maaf secara terbuka berhubung dakwaan bahawa wanita berkenaan ialah isteri kepada bekas menteri yang dikaitkan dengan isu kapal tempur pesisir (LCS).
Bagaimanapun, Rafizi bergantung kepada pembelaan justifikasi berkata bersedia membuktikan kenyataan di mahkamah termasuk perlindungan bersyarat dan ulasan yang saksama terhadap saman fitnah yang difailkan oleh Zainab Mohd Salleh.
Bagaimanapun, Rafizi bergantung kepada pembelaan justifikasi berkata bersedia membuktikan kenyataan di mahkamah termasuk perlindungan bersyarat dan ulasan yang saksama terhadap saman fitnah yang difailkan oleh Zainab Mohd Salleh.
![Ahli Parlimen PN pakai reben putih di lengan tak langgar peraturan - Timbalan Speaker Ahli Parlimen PN pakai reben putih di lengan tak langgar peraturan - Timbalan Speaker](https://resizer-awani.eco.astro.com.my/tr:w-177,h-100,q-100,f-auto/https://img.astroawani.com/2024-07/61721011336_PerikatanNasional.jpg)
Ahli Parlimen PN pakai reben putih di lengan tak langgar peraturan - Timbalan Speaker
Jelas Timbalan Yang Dipertua Dewan Rakyat itu, pendirian tersebut adalah keputusannya dan ia tidak dibuat oleh Yang Dipertua Dewan Rakyat, Tan Sri Johari Abdul.