Trench connection

Alan J. Jamieson, Toyonobu Fujii

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)


Trench Connection was the first international symposium focusing primarily on the hadal zone (depths greater than 6000 m). It was held at the University of Tokyo's Atmosphere and Ocean Research Institute in November 2010. The symposium was successful in having attracted an international collective of scientists and engineers to discuss the latest developments in the exploration and understanding of the deepest environments on Earth. The symposium sessions were categorized into three themes: (i) new deep-submergence technology; (ii) trench ecology and evolution; and (iii) the physical environment. Recent technological developments have overcome the challenges of accessing the extreme depths, which have in turn prompted an international renewed interest in researching physical and biological aspects of the hadal ecosystems. This bringing together of international participants from different disciplines led to healthy discussions throughout the symposium, providing potential opportunities and realizations of where the future of unravelling hadal ecology lies. Hadal science is still at relatively rudimentary levels compared with those of shallower marine environments; however, it became apparent at the symposium that it is now an ever-expanding scientific field.

Original languageEnglish
Pages (from-to)641-643
Number of pages3
JournalBiology Letters
Issue number5
Publication statusPublished - 2011 Oct 23


  • Deep submergence technology
  • Deep-sea biology
  • Hadal zone
  • Trench ecology


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