Category Archives: Algal blooms and cyanobacteria

Alternative term is Phycology and Blue-green algae. Category includes cyanobacterial or other algal blooms in freshwater, estuarine and marine waters.
Focus on Australian waters.
Cyanobacteria, cyanobacterial toxins, algal blooms, algal toxin analysis.

Murray River blue-green algae outbreak could last months, authorities warn

ABC News Stephanie Anderson 24 March 2016

An outbreak of blue-green algae affecting the Murray River could last through April and even into May, authorities have warned.

A 700-kilometre stretch of the river is affected by algal blooms, from Lake Hume, near Wodonga in the state’s north-east, almost to Kerang in the north-west.

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Blue-green algae outbreak spreading through the Murray River

ABC News 8 March 2016

Parts of the Murray are turning green as a blue-green algae outbreak spreads though out Australia’s longest river.

Blue green algae alerts for Victorian rivers and lakes

Weekly Times Chris McLennan 26 February 2016

A BLUE-green algae alert has now been issued for long sections of the Murray River.

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Toxin found in Gippsland Lakes prompts shellfish warning from Victorian Health Department

ABC News  8 February 2016

People have been warned not to eat or take mussels and other shellfish from Victoria’s Gippsland Lakes region, as health authorities test for a rare, potentially fatal toxin.  High levels of the rare toxin Pseudo-nitzschia delicatissima, which is caused by algae blooms, was found in water samples taken at Eagle Point, Paynesville and Metung.

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Health warning over shellfish from Victoria’s Gippsland Lakes region (

Toxins related to ‘red tides’ found in home aquarium

(American Chemical Society 13 January 2016) Many shore residents and beach-goers are already familiar with the health risks of ‘red tide,’ algal blooms along coastlines that can trigger respiratory illness and other effects in people who inhale the toxins the algae release. Now in ACS’ journal Environmental Science & Technology, scientists report new evidence that similar effects can occur on a much smaller scale among home aquaria owners.

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Toxin in blue-green algae blooms may increase risk of Alzheimer’s and other neurological diseases

ABC News Genelle Weule 20 January 2016

Long-term exposure to a toxin produced by blue-green algal blooms can trigger tangles in the brains of animals similar to those seen in the brains of humans with Alzheimer’s disease and other neurological conditions, a study has found.
“As far as we are aware, this is the first time researchers have been able to successfully produce brain tangles and amyloid deposits in an animal … through exposure to an environmental toxin,” said the study’s lead author Dr Paul Alan Cox, an ethnobotanist at the Institute for EthnoMedicine.
The study, published in the journal Royal Society Proceedings B, also identified a common supplement decreased the number of brain tangles in animals exposed to the toxin.

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BBC News report 21 January 2016

Link to full-text article in Royal Society Proceedings B

Harmful algal blooms and water quality

(Society of Environmental Toxicology and Chemistry 22 December 2015) Harmful algal blooms (HABs) occur naturally, but their outbreaks are influenced by climate change and droughts, nutrient enrichment and manmade factors, such as contaminants from sewage and stormwater discharge, natural resource extraction or agricultural runoff, to name a few. An article in Environmental Toxicology and Chemistry explores inland surface water quality assessment, research on HABs and management practices in an effort to identify the current challenges and seek solutions to the threats HABs present to public health and the environment.

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