18e webinar of the series entitled "A Global Scan of How the Issue of Nutrient Loading and Harmful Algal Blooms is Being Addressed by Governments, Non-Governmental Organizations and Volunteers."
Speaker: Prof. Alain N. Rousseau, INRS-ETE, regular member of CentrEau
Language: French, with slides in French
Presentation : See the presentation slideshow » [in French]
Article: Foulon, É., A.N. Rousseau, G. Benoy, R.L. North. 2020. A Global Scan of How the Issue of Nutrient Loading and Harmful Algal Blooms is Being Addressed by Governments, Non-Governmental Organizations and Volunteers. Water Quality Research Journal 55 (1): 1–23. https://doi.org/10.2166/wqrj.2019.013
Summary: Harmful algal blooms (HABs) in aquatic ecosystems are of concern worldwide. This review deals with how jurisdictions around the world are addressing this water quality issue to inform recommendations regarding nutrient loading and HABs in Missisquoi Bay-Lake Champlain and Lake Memphremagog; transboundary lakes located in the USA and Canada that suffer from symptoms of eutrophication. A global scan of the literature resulted in the consideration of twelve case studies of large water bodies within large watersheds, excluding in-lake geoengineering approaches. Although all of systems experience excessive nutrient loading, they vary in two key ways: sources of nutrients and manifestations of eutrophication ranging from HABs, to limited recreational uses, to the additional complexity of internal loadings and fish kills, up to drinking water shutdowns. The case studies were analyzed with respect to four categories of approaches, namely: (i) regulatory; (ii) incentive-based; (iii) risk mitigation; and (iv) outreach, engagement, and educational. We found that the management frameworks are based on integrated watershed management planning and national standards. National water quality standards, however, are not stringent enough to prevent HABs. Overall, identified case studies did not successfully remediate HABs, they simply managed them.
New series of weekly CentrEau webinars "all about water management". These short 20-minute presentations will be offered live every Thursday at 1 p.m. followed by a short discussion period. CentrEau professors and researchers, as well as guest speakers, will present their research work and its importance in a semi-popularized manner.
Watch the previous webinars on our YouTube Channel!
