GEORGE TOWN: Marine scientists are ready to head to Langkawi to tackle the jellyfish threat that killed a Russian boy at Chenang beach.
Any action must be coordinated through the Langkawi Development Authority, Fisheries Department, Health Ministry and other agencies, said Prof Datuk Dr Aileen Tan, director of Universiti Sains Malaysia’s Centre for Marine and Coastal Studies.
She said the team can be deployed once it receives basic information such as hospital sting cases, fisheries monitoring records, rainfall and water quality trends, recent photographs or samples and exact beach locations.
Tan said rapid sampling at the beach and nearby stretches would then allow the drawing up of a short-term risk profile.
But she said long-term safety depends on building local capacity.
She stressed that hotel staff, lifeguards, water sport operators and other frontliners must be trained to observe, document and identify the jellyfish so that monitoring continues even when scientists are not present.
On whether Langkawi is seeing an unusual spike in jellyfish activity, Tan said there was not enough data to confirm any long-term ecological trend.
She said occurrences in Malaysian waters were natural and often influenced by rainfall, tides, nearshore currents and coastal water quality.
“Preliminary clinical observations from the recent incident point to a box jellyfish (cubozan), based on tentacle-contact marks on the victim.
“But a definitive identification cannot be made without a captured specimen or nematocyst sample, underscoring the need for a proper documentation system,” she said.
Tan urged for immediate measures, including multilingual warning signs at popular beaches, stronger vinegar-based first-aid readiness and routine shoreline checks.
She said frontliners should be trained to recognise jellyfish, administer correct first aid and report sightings promptly.
Night-time light-detection work and simple drift-net surveys, however, can begin at once.
For the next three to five years, Tan said Langkawi should focus on improving coastal water quality management, especially reducing nutrient-rich run-off that may contribute to jellyfish blooms.
She said others include setting up monitoring stations, upgrading beach infrastructure, creating managed swimming zones and developing a “Jellyfish Safety Standard” for resorts and tourism operators.
Tan said prevention requires both scientific and non-scientific approaches, combining environmental monitoring and species identification with public awareness, safe-swimming practices, clear risk communication and trained responders.
To maintain tourist confidence, she proposed a balanced advisory system featuring multilingual boards on seasonal risks, flag indicators on high-risk days, QR-code updates and hotel-issued advisories.
On Nov 19, two-year-old Vladimir Lakubanets died after being stung by a box jellyfish at Chenang beach on Nov 15.
Box jellyfish, named after their box-shaped body, are known to actively move in the water unlike other jellyfish that drift with the current.
It has two dozen eyes that seek small prey and has a highly venomous sting with some species capable of killing humans in just minutes.
