Three-dimensional space use by a representative Hydrophis elegans within the study site (Fig. 3c). Day-time core (50%-3DKUD; dark red) and extent (95%-3DKUD; light red) 3DKUD as well as night-time core (50%-3DKUD; dark blue) and extent (95%-3DKUD; light blue) 3DKUD are represented. Surrounding bathymetry and sea surface are also rendered to provide context. Black points represent the locations of acoustic receivers within the study site. For the interactive version of this data please visit https://dl.dropboxusercontent.com/u/31456301/3DSS/SM4/index.html . Close up version of this model is available in Additional file 5
