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Summary of a review workshop on the New Zealand Guidelines for Cyanobacteria in Recreational Fresh Waters

Publication date:  May 2019
Publication reference number:  CR 353

The ‘Interim New Zealand Guidelines for Cyanobacteria in Recreational Fresh Waters’ were released by the Ministry for the Environment and the Ministry of Health in 2009. Since then, our knowledge has advanced and new issues have emerged. This report summarises a workshop held to gather feedback on the guidelines and to identify additional areas that need to be addressed. The recommendations from the workshop were further elaborated upon in the final project report.

Cyanobacteria, which are microorganisms that conduct photosynthesis, are an important part of many ecosystems. They can multiply and form blooms under certain conditions, and some strains can produce toxins.