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Algae Alert: Southern Rivers in Peril

A recent surge in toxic algae sightings has put rivers in Southland on high alert. Environment Southland issued warnings after harmful algae was discovered in various water bodies across the region, raising concerns about public safety and ecosystem health.

Expert Insights: Understanding the Threat

According to senior scientist Katie Blakemore, while algae are a natural part of river ecosystems, certain species have the potential to produce toxins that can be harmful to humans and animals. The prevalence of these harmful blooms tends to peak in the summer months, particularly in times of low rainfall and stable river flows. Blakemore emphasized the critical role that flow conditions play in the persistence of these blooms, highlighting the unpredictability of their duration.

Stay Informed: Safety Measures and Warnings

As a precautionary measure, Environment Southland has advised the public to exercise caution when engaging in water activities, such as swimming or letting pets off the leash near affected areas. Dark green or black algae are indicative of potential toxicity and should be avoided. Regular updates on monitored locations and safety guidelines can be accessed through Environment Southland’s website to ensure public awareness and preparedness.

Current Warnings and Ongoing Investigations

Presently, three warnings have been issued for sites in Fiordland and Invercargill, including Whitestone River, Waiau River, and Waihōpai River. Additionally, reports of algal blooms in Doubtful Sound have raised concerns about potential ecological impacts, prompting further investigations by the regional council. The interconnectedness of these incidents underscores the need for proactive monitoring and community involvement in safeguarding the region’s waterways.

By staying vigilant and informed, residents can contribute to the preservation of Southland’s natural resources and mitigate the risks associated with toxic algae blooms. As the situation continues to evolve, collaboration between authorities and the public remains essential in addressing environmental challenges and ensuring the well-being of both people and ecosystems.