. The Cost of Policy Inaction: The case of not meeting the 2010 biodiversity target. aeewttmt sututaMr «K> fr»l Mejty T. Figure 143 Changes in the calculated depletion index (DI1 from year 11007 to 2047 in FAO areas 21 to 51 and under different scenarios ("Market first0. "Policy first3, "Security first3 and "Sustainability first"). Positive changes in DI indicate reduction in depletion risk whDe negative changes indicate increase in depletion risk. Figure Depletion index in 8 FAO marine regions in 4 GE04 scenarios (Alder et ai, 2007) FAO 21 ^Northwest Atlantic
. The Cost of Policy Inaction: The case of not meeting the 2010 biodiversity target. aeewttmt sututaMr «K> fr»l Mejty T. Figure 143 Changes in the calculated depletion index (DI1 from year 11007 to 2047 in FAO areas 21 to 51 and under different scenarios ("Market first0. "Policy first3, "Security first3 and "Sustainability first"). Positive changes in DI indicate reduction in depletion risk whDe negative changes indicate increase in depletion risk. Figure Depletion index in 8 FAO marine regions in 4 GE04 scenarios (Alder et ai, 2007) FAO 21 ^Northwest Atlantic, 27-Northeast Atlantic, 31=Caribbean, 34=Nortbn<est Africa, 37-Mediterranean, 41 =Southwest Atlantic, 47-Southeast Atlantic, 51=West Indian The graphs illustrate that only in the Sustainability First scenario in some FAO regions a positive development can be expected. In all other areas the future of marine biodiversity is very dismal. Changes in coastal systems Introduction Coastal ecosystems are among the most productive ecosystems in the world. They include freshwater and brackish water wetlands, mangrove forests, estuaries, marshes, lagoons and salt ponds, rocky or muddy intertidal areas, beaches and dunes, coral reef systems, seagrass meadows, kelp forests, nearshore islands, semi-enclosed seas, and nearshore coastal waters of the continental shelves (see map in figure ). They are highly dynamic, and are now undergoing more rapid change than at any time in their history. The changes are due to dredging of waterways, infilling of wetlands, and construction of ports, resorts, and housing developments, and 118 Alterra-rapport 1718. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Braat, L. ten Brink, P. (eds. ) Contributions from: Bolt, K. and Walpole, M. , Consortium led by Alterra, inc
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