Research Document - 2010/036
Summary of the Rapid Response to Round Goby (Neogobius melanostomus) in Pefferlaw Brook with an Evaluation of the National Rapid Response Framework based on the Pefferlaw Brook Experience
By P.E. Dimond, N.E. Mandrak, and B. Brownson
Abstract
Rapid response measures to combat invasive aquatic species are in place in many countries but a formal rapid response procedure is not yet in place in Canada.
An ad hoc rapid response to Round Goby (Neogobius melanostomus) in Pefferlaw Brook was initiated in the summer of 2004. Pefferlaw Brook is a tributary of Lake Simcoe and there was concern about the potential impact of Round Goby to the lucrative sports fishery and aquatic resources of the lake. After consideration of available management options, an experimental chemical piscicide treatment was carried out in the fall of 2005.
Post-treatment assessment found that the rapid response to the presence of Round Goby in Pefferlaw Brook was not successful in eradicating Round Goby from the brook, or preventing its spread into Lake Simcoe, however partial mitigation was achieved as the rate of spread was greatly reduced. Post-treatment sampling of fish assemblages of Pefferlaw Brook indicated a successful recovery of fishes. Valuable experience was gained that will enhance rapid response planning and implementation as well as the management of Round Goby in other waters.
Key partners in the undertaking were the Ontario Ministry of Natural Resources, Ontario Federation of Anglers and Hunters, and the Department of Fisheries and Oceans, along with the involvement of other governmental agencies and community groups.
This report is presented in two parts. The first part provides a comprehensive summary of the Pefferlaw Brook rapid response. The second part evaluates the proposed draft national framework for rapid response management in the context of the Pefferlaw Brook experience. Recommendations are provided for the draft framework.
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