Correction to: The ISME Journal(2011) 5, 507–518; doi:10.1038/ismej.2010.112; published online 29 July 2010

Owing to a typesetting error, the third sentence of the abstract was published incorrectly. The correct sentence is shown below:

Significant differences in both bacterial and archaeal diversity were observed in the upper (20 and 50 m) and deeper layers (200 and 1500 m).

The publishers would like to apologize for this error and any inconvenience it may have caused.