Universiti Malaysia Terengganu (UMT) science and marine environment faculty senior lecturer Roswati Amin said the species is easily identified by its translucent bluish-purple or pink tinge, Bernama reported.

The plankton ecophysiology expert advised the public not to touch the venomous marine creatures, including those that are dead, as they can pose serious risks due to their stinging tentacles.

“This species is commonly found in the Pacific, Indian and Atlantic oceans. However, we found this species on the beach near UMT in Kuala Nerus last November.

“These creatures can’t swim. They use their float-like polyps, which measure between 2cm and 10cm, to navigate or catch food,” she was quoted as saying.

“They also move according to ocean currents and wind. The strong northeast monsoon season winds are among the factors causing them to wash ashore.”

Roswati also urged the authorities to monitor the presence of these marine creatures in beach areas frequented by visitors.

She said this was to ensure the safety of the public, especially children who could be easily excited by the discovery of these jellyfish.

“I also advise fishermen to be more careful because these jellyfish can easily get caught in fishing nets,” she added.

Meanwhile, Kampung Baru Rhu Muda resident Kamaruzaman Sulong, 40, said he was in his kitchen when he noticed the presence of the jellyfish last night.

He said his house’s proximity to the beach enabled him to clearly see hundreds of them floating in the sea.

“This is the first time I’ve seen these jellyfish at Pantai Rhu Muda. I recognise and know about these jellyfish because I’ve seen them before while out fishing at sea.

“Last night the waves were strong and the tide was high, which is why these species could have washed up on Pantai Rhu Muda,” he said.