Ecosystem Services Enhanced by Salmon Habitat Conservation in the Green/Duwamish and Central Puget Sound Watershed

Acknowledgements The knowledge, support and cooperation of many individuals played an indispensable role in producing this document. Such a comprehensive socioeconomic analysis required the combined efforts of the WRIA 9 team and King County. In particular, APEX would like to thank from the APEX team. APEX would also like to extend thanks to The Russell Family Foundation and the Bullitt Foundation for their support and funding. v EXECUTIVE SUMMARY The Water Resource Inventory Area 9 (WRIA 9) Habitat Plan is a long-term, comprehensive plan to protect and restore Chinook salmon 1 in the Green/Duwamish and Central Puget Sound Watershed. Restoring salmon has significant socioeconomic implications. The greatest socioeconomic implication of salmon recovery is in securing healthy ecosystems which provide vast public and private benefits. WRIA 9 ecosystems produce $1.7-6.3 billion dollars of value in goods and services each year, benefiting individuals, communities, businesses, and governments within WRIA 9. The value of salmon restoration and healthy ecosystems to future generations is far greater. The Seattle based Asia-Pacific Environmental Exchange (APEX), with the University Vermont Gund Institute for Ecological Economics, worked with the WRIA 9 staff to estimate the value of ecosystem goods and services produced within the Green/Duwamish and Central Puget Sound Watershed. The ecosystem goods and services enhanced by actions to implement the Habitat Plan Conservation Hypotheses have been identified and two case studies for salmon restoration actions in the transition zone of the Green River and in the nearshore have also been examined. The WRIA 9 Habitat Plan actions to restore viable salmonid populations will also preserve and restore 23 categories of valuable ecosystem goods and services identified in the Green/Duwamish and Central Puget Sound Watershed. Healthy ecosystems produce goods and services for free and in perpetuity. They are essential to maintaining a healthy economy and livable communities within WRIA 9. Ecosystem goods and services enhanced by Habitat Plan actions include: flood protection, natural storm water maintenance, drinking water production and filtration, reduction of pathogens and The full value of the benefits provided by ecosystems within WRIA 9 has never previously been estimated. Until recently, the natural capital, goods and services produced by ecosystems within WRIA 9, including wild salmon, have been abundant. At one time, it was only a shortage of boats and nets that limited the amount of abundant wild salmon caught. Today boats, nets and fishing lures are abundant and a shortage of natural capital—wild salmon—is …

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