Agencies in Tasmania are attempting to pinpoint a rosy sludge that has appeared on a remote shoreline, with some scientists worried it could be an phytoplankton proliferation.
The magenta-hued slime was found on a section of a southern bay about 37 miles south of the city. A like substance has also been recorded on sections of another local beach and a separate bay.
Specimens have been taken and submitted to the regulatory body for analysis. A official remarked that "algae outbreaks are a natural occurrence in reaction to changes in food sources, temperature, precipitation or sunlight".
"They are occasionally called crimson or rosy tides because the outbreaks can change the water reddish," the representative noted. "Few algal blooms are dangerous, with many species functioning as a primary source of food for creatures in the aquatic ecosystem."
"The primary reason of crimson tides in local waters is the oceanic algae Noctiluca scintillans, which can produce bioluminescent light displays at night."
Phytoplankton proliferations happen naturally but their occurrence has grown in recent years, in part due to environmental shifts and pollution that combine to create nutrient-rich waters primed for the fast proliferation of dinoflagellates.
Dinoflagellates are a marine plant that usually serve as the ocean's garbage cleaners. During a outbreak, there is a rapid growth in their numbers that interferes with the healthy balance of aquatic systems.
These phenomena have been equated with marine infernos and can continue to grow as long as circumstances are favorable. In worse situations, vulnerable aquatic environments can be devastated as marine life is destroyed or suffocated, supplying more minerals for the bloom.
South Australia recently confronted a devastating algae outbreak along its southern shore after a string of sea temperature spikes, which expanded across thousands of square kilometres. The bloom caused swimmers with sore eyes and hacking coughs and may have caused the death of up to 250,000 marine animals across 400 different species, according to agency assessments.
A marine expert, who was involved in studying the onset of South Australia's event commented, based on pictures of the local event, the probable type involved was Noctiluca scintillans, a type of dinoflagellate also known as "marine shimmer".
"There are many of these blooms around Tassie of late," she added.
Coleman stated sea sparkle did not generate toxins comparable to the type involved in the previous harmful outbreak, but it does consume microscopic animals and "lots of fish eggs", meaning fish and crustacean species were most at risk.
"It's common to observe a bloom of the organism after a bloom of another organism, or an event such as a salmon or coral spawning event," she noted.
A marine scientist, who gathered specimens of the magenta ooze in Tasmania, commented it appeared the suspected bloom had "expanded greatly" and suggested the fish farming business was the most likely culprit, pointing to comparable events overseas.
"So Tasmania needs to deliver a firm alert here, the authorities and the EPA need to react to this. We need to study the examples we've collected and we need to put word out the community here," she stated.
Henley said she had concerns for public safety after noticing a prickling feeling along her limbs and skin while being splashed with contaminated seawater.
An environmental foundation has reported dead octopus and deceased marine life appearing on the coast, with a longtime environmental campaigner describing the circumstances as an "natural disaster" and demanding the government head to see and "take control the response that officials must be making".
"The leader needs to realize this is a crisis in the happening, commercially as well as ecologically."
Speaking to the media, the premier commented he was did not know of any relationships between the algae outbreak and the farming business, stating scientific testing was needed before determinations could be made.
"We must make certain our aquatic environments are safe for nature and viable," he added.
"Our coastal assets across the island are our treasures and we need to guarantee the people and our economy can operate side-by-side to utilize our waterways efficiently and sustainably."
Wildlife biologist and sloth enthusiast with over a decade of field research in Central American rainforests.