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Proceedings 2011/060

Proceedings of the CSAS Peer Review of the binational ecological risk assessment of bigheaded carps (Hypophthalmichthys spp.) for the Great Lakes basin; November 8-10, 2011

Chairperson: D. Rivard


A draft research document was developed to evaluate the ecological risk associated with the introduction of bigheaded carps (Bighead and Silver carps) to the Great Lakes straddling the Canada-USA border (including connecting channels and tributaries to the first impassable barrier). A meeting was held to peer review these draft documents according to the Canadian Science Advisory Secretariat (CSAS) peer review process. The meeting was held November 8-10, 2011 in Cleveland, Ohio, USA. Participants included the Centre of Expertise for Aquatic Risk Assessment (CEARA) Directorate, members of the Great Lakes Fishery Commission, US Geological Survey, and other individuals (from within and outside Fisheries and Oceans Canada (DFO) Science) with relevant expertise in bigheaded carps, invasive freshwater fishes, or in ecosystem modelling. This document summarizes the discussions and decisions that took place during the workshop.

The peer review process resulted in changes to the ranks associated with a risk assessment by modifying the approach used to determine risk for a stronger, logical approach. The resulting changes to overall risk rankings were finalized and presented at the meeting. Results of this ecological risk assessment will subsequently be used to conduct a separate socio-economic impact assessment. The results of both the ecological risk assessment and the socio-economic impact assessment will form two separate pieces of advice for managers and decision-makers to use when determining courses of action regarding prevention, monitoring, early detection, rapid response, management, and control of bigheaded carps.

Advice resulting from the meeting will be published as a Science Advisory Report and the working papers used to support the risk assessment will be published as CSAS Research Documents and DFO Manuscript Reports.

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