Two new invasive aquatic species pose a threat to the environment and water supply in California. The quagga mussel, Driessena bugensis, and zebra mussel, Driessena polymorpha, were detected in California water bodies in 2007 and 2008.
These species have great potential to cause ecological harm by modifying aquatic habitats. They reproduce rapidly and reache very high densities. Thus, they compete for space with native species, and because they filter phytoplankton out of huge volumes of water, they can change the physical and biological properties of the ecosystem.
They may also cause significant economic harm by clogging pipes and covering infrastructure from boat engines and docks to dam gates and irrigation channels.
Quagga/zebra mussels in California
Preventing the spread of Eurasian mussels
California Monitoring Information & Trainings
· And for education about the problems caused by releasing unwanted pets and plants, visit Habitatitude at http://www.habitattitude.net/
This practical and well-researched 36-page report explains how to use an Integrated Pest Management (IPM) approach and specific tactics for eradicating and/or controlling invasive dreissenid (quagga and zebra) mussels in lakes and reservoirs. It covers how to develop and get started on a management strategy, manual & mechanical removal, oxygen deprivation, chemical application, emerging technologies, and an overview of permitting and regulatory processes. The report includes photos and diagrams, successful examples of eradication and control efforts that have used each of the tactics, and extensive weblinks to resources for more information. It is based in part on presentations by experts at a joint workshop presented by California Sea Grant Extension and University of California Cooperative Extension in San Diego on February 1-2, 2012.
Speakers’ abstracts, other information from the workshop presentations and field trips, and individual information sheets on the topics noted above are available from:
The UC Driessenid Mussel Summit was held Oct. 21st and 22nd 2010 in Sacramento. For more information, including the agenda and presentations, click here.
To purchase our Early Detection Monitoring Manual for Quagga and Zebra Mussels, click here.