Sharks

This figure shows the vertical movement through the water column and associated water temperatures recorded from one sleeper shark, for several distinct periods.

For most of the shown period from late August through late November, this shark exhibited almost continuous movement from shallow depths of 30-60m, down to deepest depths of 250-300m. Often times vertical movement was stronger and ranged wider at night, but there were also periods when depth changes were much less accentuated. Generally, water temperatures occupied ranged from 6-7 C, with peaks above 10 C.