Ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs
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Blue-green algae

Blue-green algae, or “cyanobacteria” by their scientific name, are microorganisms that have existed for over three billion years. They are naturally present in the lakes and rivers of Québec at low concentrations. Normally they do not cause any problems. However, under certain conditions blue-green algae can reproduce quickly and become extremely abundant. They then form what are called “algal blooms”.



Best practices

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Documentation

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Intervention plan

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Regulations concerned by the Plan

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Governmental partners in the Intervention Plan

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Managing algae bloom episodes

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Other useful links

Information

For more information about blue-green algae, call:

418-644-4545 (Québec area)
514-644-4545 (Montréal area)
1-877-644-4545 (elsewhere in Québec)
Regional Offices

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