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A global seamount classification to aid the scientific design of marine protected area networks
Clark, M.R.; Watling, L.; Rowden, A.; Guinotte, J.M.; Smith, C.R. (2011). A global seamount classification to aid the scientific design of marine protected area networks. Ocean Coast. Manag. 54(1): 19-36. https://dx.doi.org/10.1016/j.ocecoaman.2010.10.006
In: Ocean & Coastal Management. Elsevier Science: Barking. ISSN 0964-5691; e-ISSN 1873-524X, meer
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| Auteurs | | Top |
- Clark, M.R.
- Watling, L.
- Rowden, A.
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- Guinotte, J.M.
- Smith, C.R.
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| Abstract |
Seamounts are prominent features of the world’s seafloor, and are the target of deep-sea commercial fisheries, and of interest for minerals exploitation. They can host vulnerable benthic communities, whichcan be rapidly and severely impacted by human activities. There have been recent calls to establish networks of marine protected areas on the High Seas, including seamounts. However, there is little biological information on the benthic communities on seamounts, and this has limited the ability of scientists to inform managers about seamounts that should be protected as part of a network. In this paper we present a seamount classification based on “biologically meaningful” physical variables for which global-scale data are available. The approach involves the use of a general biogeographic classification for the bathyal depth zone (near-surface to 3500 m), and then uses four key environmental variables (overlying export production, summit depth, oxygen levels, and seamount proximity) to group seamounts with similar characteristics. This procedure is done in a simple hierarchical manner, which results in 194 seamount classes throughout the worlds oceans. The method was compared against a multivariate approach, and ground-truthed against octocoral data for the North Atlantic. We believe it gives biologically realistic groupings, in a transparent process that can be used to either directly select, or aid selection of, seamounts to be protected. |
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