Assessing and Managing Cumulative Environmental Effects

6 - 9 NOVEMBER 2008

Contributing to Healthy and Productive Aquatic Ecosystems: Strengthening Institutions, Science and Practice for Regulating the Impacts of Human Activities to Fish and Fish Habitat (Part 2)

Moderator: Patrice LeBlanc and Neil Fisher

      Presentations

      Ecosystem-Based Approach to CEAM of Fish and Fish Habitat: Lessons from the AFS Symposium and DFO Workshop

      Presenter(s): Barry Sadler

          A Framework for Making Ecosystem Approach to the Management of Fisheries Operational

          Presenter(s): Stratis Gavaris

          An Ecosystem Approach for Management requires consideration of cumulative effects. A strategy specifies what will be done about human pressure using a reference to signal when the pressure is unacceptable. The reference is established from consideration of the response by valued attributes to alternative references. Cumulative effects can be decomposed into the contributions of activities to a pressure and the combined impact of pressures on an attribute. Such decomposition can facilitate management.

            Cumulative Impacts on American Eel: Recent Approaches to Governance, Policy, Management and Biological Challenges

            Presenter(s): Rob MacGregor

            The American eel is declining significantly in parts of its North American range and is now listed as endangered in Ontario. The decline appears to be related to the cumulative effects of fishing, habitat loss due to barriers and turbine mortalities. Recovery and conservation are further challenged by its unique biology and the complexity of management responsibilities spanning at least 25 jurisdictions. Despite the challenges, managers are working on integrated approaches aimed at ensuring coordinated science and management at the population level.

            Adaptive CoAdaptive Co--management: Practical lessons to assess and mitigate cumulative effects in a tropical floodplain

            Presenter(s): Ronald W. Jones

            Global freshwater ecosystems are undergoing profound anthropogenic change. Ecosystem characteristics and livelihoods are severely altered due to cumulative effects. Adaptive co-management is promoted as an iterative process to develop sustainable aquatic resource management institutions. Results from Beel Mail, Bangladesh show how opportunities and challenges in developing cumulative effects assessment and resource institutions require effective leaders; engaging diverse stakeholder groups and fostering community-based fisheries. Challenges include empowering local solutions, integrating beyond top-down management and recognizing the multiple and cross-scale origins of cumulative effects.

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