Local red sea sparkles at night due to algal bloom

THE Department of Environment, Land, Water and Planning (DELWP) is responding to an algal bloom of Noctiluca scintillans commonly known as sea sparkle, that is affecting marine waters along the Surf Coast and Bellarine Peninsula.

DELWP Incident Controller Stephanie Ryan said the blooms are spread from Port Phillip Heads to Apollo Bay and vary in concentration and distance from the shore.

“There have been several occurrences of sea sparkle off beaches along the Surf Coast and Bellarine Peninsula over the past few weeks,” Ms Ryan said.

“An aircraft was dispatched to assess the algal bloom and determine the extent of the area affected, confirming the bloom has spread and now covers the coast from Port Phillip Heads to Apollo Bay.

“When present, blooms can produce a spectacular pinkish-red slick during the day and glowing light at night.

“Sea sparkle is one of the most commonly occurring bioluminescent organisms in the world and during blooms can produce toxic levels of ammonia that can lead to fish deaths.

“Blooms can look like a murky, sludge or oil-like substance floating in marine waters and washing onto beaches. Affected water can become temporarily discoloured and have an unpleasant smell.

“Members of the public are advised to avoid direct contact with affected water. Direct contact may cause allergic reactions such as skin rashes or itchiness, sore ears or nose, or if swallowed, gastroenteritis, nausea and vomiting.

“Wash immediately with fresh water if you come in contact with the algae-affected water. Seek medical advice if experiencing illness after contact with affected water.

“Pet owners should prevent pets from having direct contact with the algae-affected water.”

DELWP is monitoring coastal waters for blooms and will provide further information as the situation changes.