Abstract
Patterns of Life on the Southern Mid-Atlantic Ridge: Compiling What is Known and Addressing Future Research
Highlights
INTRODUC TION Mid-ocean ridges and seamount chains are prominent structures of the deep seafloor that have attracted considerable attention for their biodiversity, fisheries, and mineral resources (Clark et al, 2010)
South Equatorial MAR Sector (SEMS), Tropical MAR Sector (TMS), and Walvis Ridge Sectors (WRS) superstations were influenced by different oceanographic regimes: the seasonal eastern equatorial bloom (ETRA), the a Mid-Atlantic Ridge (MAR)-ECO cruise, October–November 2009. (a) Isaac-Kidd
It is clear that deep-sea communities are neither isolated nor static, but dynamically connected over a range of spatial scales through dispersal processes and dynamic interactions with the pelagic ecosystem (Snelgrove, 2010)
Summary
INTRODUC TION Mid-ocean ridges and seamount chains are prominent structures of the deep seafloor that have attracted considerable attention for their biodiversity, fisheries, and mineral resources (Clark et al, 2010). In 2006, an initiative to expand sampling activities and studies to the South Atlantic mid-ocean ridge spun off the MAR-ECO project, supported by the CenSeam (Census of Marine Life on Seamounts) project (Consalvey et al, 2010) This initiative was concerned with addressing biological questions considering (a) complex patterns of geological morphology and deepwater circulation of the ridge, (b) its connections with the North Atlantic, Pacific, Indian, and Southern Oceans, and (c) its recent origin, as it is virtually “the youngest of the major world oceans” (Levin and Gooday, 2003). These basins are connected by deep channels that include the Vema Sill and Hunter Channel on either side of the Rio Grande Rise, and Kane Gap on the eastern side of the Equatorial Fracture Zone (Murray and Reason, 1999)
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