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. 2013 Sep 30;8(9):e72627. doi: 10.1371/journal.pone.0072627

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© 2013 Ruff et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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A: Bathymetric map of Hikurangi margin, New Zealand. The map was generated using the ESRI ArcGIS software and the General Bathymetric Chart of the Oceans (GEBCO_09 Grid, version 20091120, http://www.gebco.net). Data for the high resolution bathymetry were provided by Jens Greinert. Sampling areas are indicated. B: Close-up view of an ampharetid polychaete, the dominant fauna at many Hikurangi seep sites. These polychaetes are between 1 and 2.5 cm long and inhabit tubes which extend 2-3 cm into the sediment (image courtesy of S. Sommer). C: Each depression on the sediment surface was created and inhabited by a single polychaete (image courtesy of D. Bowden).