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Living Deep: A Synopsis of Hadal Trench Ecology

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The ocean’s deepest environments are fraught with extreme conditions, including the highest hydrostatic pressures found on earth. The hadal zone, which encompasses oceanic depths from 6,000 to almost 11,000 m, is located almost exclusively within deep-sea trenches. Fauna inhabiting these hadal trenches represent intriguing yet possibly the least understood communities in our ocean. We present a brief historical account of hadal exploration and a synopsis of the fascinating biogeographical trends that have emerged from 60 years of sporadic hadal sampling. Biodiversity and chemosynthesis, two important concepts in deep-sea ecology, are also discussed in relation to hadal trenches.

Keywords: Amphipod; Biodiversity; Biogeography; Hadal ecology; Trench

Document Type: Research Article


Publication date: December 1, 2009

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  • The Marine Technology Society Journal is the flagship publication of the Marine Technology Society. It publishes the highest caliber, peer-reviewed papers on subjects of interest to the society: marine technology, ocean science, marine policy and education. The Journal is dedicated to publishing timely special issues on emerging ocean community concerns while also showcasing general interest and student-authored works.
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