Officials in Tasmania are attempting to pinpoint a pink slime that has appeared on a isolated coast, with a number of researchers anxious it could be an algae outbreak.
The magenta-hued slime was found on a stretch of a coastal area about 60km south of Hobart. A comparable ooze has also been documented on sections of a nearby shore and Little Taylors Bay.
Specimens have been collected and sent to the regulatory body for examination. A representative remarked that "phytoplankton proliferations are a normal phenomenon in reaction to shifts in nutrients, temperature, precipitation or illumination".
"The events are sometimes called red or pink tides because the outbreaks can change the water reddish," the representative said. "Not all algae outbreaks are harmful, with several kinds serving as a key source of nourishment for creatures in the oceanic food chain."
"The primary reason of red tides in local waters is the oceanic algae Noctiluca scintillans, which can cause bioluminescent light displays at night."
Phytoplankton proliferations are natural events but their frequency has increased in recent years, partially due to climate change and environmental waste that combine to create food-loaded oceans primed for the rapid spread of dinoflagellates.
Dinoflagellates are a marine plant that typically act as the ocean's garbage cleaners. During a bloom, there is a rapid growth in their numbers that disturbs the normal functioning of ecosystems.
These occurrences have been equated with subsurface wildfires and can continue to grow as long as the environment is suitable. In more extreme scenarios, sensitive marine ecosystems can be devastated as sea creatures is destroyed or deprived of oxygen, offering more food for the proliferation.
Another region recently dealt with a devastating algal bloom along its southern coastline after a series of marine heatwaves, which spread across an extensive zone. The bloom resulted in beachgoers with sore eyes and severe coughing and may have eliminated up to 250,000 marine animals across 400 different species, according to agency assessments.
A marine expert, who was involved in studying the start of the previous event said, based on images of the current situation, the most likely species involved was Noctiluca scintillans, a kind of dinoflagellate also known as "ocean glitter".
"There have been numerous of these blooms around Tassie of late," she remarked.
The expert stated sea sparkle did not produce toxins similar to the organism involved in that harmful outbreak, but it does ingest microscopic animals and "many fish eggs", meaning aquatic creatures were particularly vulnerable.
"It's common to observe a proliferation of this algae after a proliferation of something else, or for example a fish reproduction," she said.
A campaigner, who gathered specimens of the pink sludge in Tasmania, stated it appeared the suspected bloom had "expanded greatly" and suggested the aquaculture sector was the probable cause, citing like situations elsewhere.
"So Tasmania needs to deliver a firm alert here, the officials and the regulators need to react to this. We need to study the specimens we've gathered and we need to notify the community here," she stated.
Henley expressed she had anxieties for community health after experiencing a prickling feeling along her limbs and skin while being splashed with affected seawater.
An advocacy organization has reported lifeless animals and dead sea cucumbers appearing on the coast, with a longtime environmental campaigner labeling the situation as an "environmental emergency" and urging the state premier to visit and "lead the response that authorities must be undertaking".
"The leader needs to know this is a disaster in the unfolding, financially as well as for nature."
Speaking to reporters, the premier commented he was not aware of any connections between the algal bloom and the farming business, stating laboratory analysis was needed before conclusions could be reached.
"We need to ensure our rivers and seas are ecologically sound and viable," he remarked.
"Our coastal assets across Tasmania are our assets and we need to ensure the public and our industry can live together to enjoy our aquatic resources productively and in a lasting way."
