International Didymo Conference

The Conference was held on March 12-13, 2013 in Providence, Rhode Island USA and proudly hosted by the Invasive Species Action Network and Northeast Aquatic Nuisance Species Panel. The conference successfully brought together natural resource managers, researchers, conservationists, fishing clubs and others with an interest in learning more about didymo.


Download a copy of the conference booklet

Didymosphenia geminata is freshwater diatom (a type of alga) that is spreading to river systems across the United States and around the world. Although historically D. geminata has been found across the northern hemisphere, recently this species has been noted as an aggressive invader with nuisance bloom behavior. Notably, novel detections of D. geminata across eastern North America, New Zealand and South America have caused concern for managers and anglers.

Researchers, managers, and anglers are all seeking to better understand this species. Scientists have interest in gaining knowledge in didymo biology, managers and conservation organizations are trying to protect our resources and handle public concerns, and anglers want to learn how to protect their fishing. There has been a considerable amount of new research that improves our knowledge of the biology, control, outreach and impacts of D. geminata and this conference will bring together leading scientists, managers and anglers to share their experiences.

Conference Results

Presentations and Posters - The conference featured a robust line-up of plenary speakers, a variety of research papers, a poster session and a management panel forum. Powerpoint presentations and posters are available for download here. For a complete list of presenters and conference agenda, download the Conference Booklet

Published Proceedings - Information shared at the conference will be captured in a "Proceedings" publication with the peer-reviewed journal Diatom Research. This will likely be available in early 2014.

Conference Sponsors

This event was made possible with the generous support from:

Didymo Information

To learn more about didymo and recently published research about didymo check out our Didymo Resources