Botulism Update
Tracking the effects of botulism E is important for scientists in the lower Great Lakes, especially Lake Erie, because there have been higher numbers of die-offs of bottom-dwelling fish and some fish-eating birds over the last four years. The bacteria that produces the type E botulism is native to the Great Lakes region and in the past, the environmental and ecological conditions did not support enough bacteria to cause any problems up the food chain. However, it seems that the food chain has been affected by the invasion of exotic species such as zebra and quagga mussels, in addition to the round goby. Scientists track outbreaks of type E botulism in the fall, and there were not very many reports of fish or bird deaths on the lower Great Lakes during the fall of 2003. Researchers in Canada and the United States monitor and research the situation to better understand the possible role of exotic species in bacteria outbreaks; Environment Canada is an active participant in this work.
For further information: Jeff.Robinson@ec.gc.ca
Comments, questions and suggestions are welcome! Please complete the Feedback Form.