Table 1.
Observed behavioral composition of strikes on benthic and mid-water bait by sixgill sharks.
Fig 1.
Two sixgill sharks manipulating bait by twisting.
A-C (2.9m male) twisting while in the head-down vertical orientation with ventral surface facing the camera. The abdomen is partially obscured by the mid-water bait. A-center of swing, B-rotation right, C-rotation left past center. D-F (3.3m female) twisting during horizontal orientation with the head of the shark to the right. D-center of swing, E-rotation left, F-rotation right past center, visual tag seen on the shark in lower left hand corner.
Fig 2.
Sixgill shark employing unilateral tear to remove a salmon carcass from mid-water bait.
3.3m female.
Table 2.
Bite kinematics.
Fig 3.
Bite sequence of a 2.9m male sixgill.
CE = start of cranial elevation, MD = start of mandible depression, CD = end of cranial depression, ME = end of mandible elevation. Upper jaw protrusion was obscured from view.
Fig 4.
Composite diagram of kinematic variables from a single representative bite.
Bite from a 3.3m female sixgill shark.
Fig 5.
Examples of upper jaw protrusion and labial extension.
Images of a 3m female (A-B) and a 3.3m female (C-D), respectively.
Table 3.
Comparisons of bite kinematic variables and manipulation between sixgill sharks and sharks from Orders Lamniformes, Squaliformes, Carcharhiniformes, and Orectolobiformes respectively.