Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain
the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in
Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles
and JavaScript.
Red star56,63 (this study) and red dots52,60,64,65,66,67,68 are the locations of core sites cited in this paper. The bathymetry is adapted from IBCAO Version 386.