. The Cost of Policy Inaction: The case of not meeting the 2010 biodiversity target. The Coastal Boundary Zone biome ( of the world ocean) consists of the continental shelves (0—200 meters) and the adjacent slopes. This biome is the most significant source of marine fish landed globally, and it also bears many of the impacts of fishing on ecosystems and of other human Figure Classification of World s Oceans. Four "Biomes" were identified Polar, Westerlies Trade-wilds, and Coastal Boundary (Longhurst et al. 1995: Longhutst 1998). The Coastal Boundary is Indicat
. The Cost of Policy Inaction: The case of not meeting the 2010 biodiversity target. The Coastal Boundary Zone biome ( of the world ocean) consists of the continental shelves (0—200 meters) and the adjacent slopes. This biome is the most significant source of marine fish landed globally, and it also bears many of the impacts of fishing on ecosystems and of other human Figure Classification of World s Oceans. Four "Biomes" were identified Polar, Westerlies Trade-wilds, and Coastal Boundary (Longhurst et al. 1995: Longhutst 1998). The Coastal Boundary is Indicated by a black border around each continent. Each of these Biomes Is subdivided into Biogecchemical Provinces. The BGP ot the Coastal Boundary Biome largely ovedaps with LMEs Identified by K. Sherman and coworkers (see Watson et al. 2003). Figure The Marine Biomes The Polar biome (15% of the world ocean) accounts for 15% of global marine fish landings. Its vertical density structure is determined by low-salinity waters from spring melting of ice. The bulk of annual primary production occurs in ice-free waters during a short intense summer burst. However, primary production under lighted ice occurs over longer periods, especially in Antarctica. In the Westerlies biome ( of the world ocean), seasonal differences in the depth of the mixed layer result from seasonality in surface irradiation and wind stress, inducing strong seasonality of biological processes, including a spring bloom of phytoplankton. Overall, the Westerlies biome contributed 15% of the world's marine fisheries catch in marine environment in this biome is relatively unaffected by human use other than fishing. The Trade-winds biome ( of the world ocean) lies between the northern and southern sub-tropical convergences, where a strong water density gradient hinders nutrient recycling between deep layers and upper surface layers. The resulting low levels of new primary production make these zo
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