Dolphin's dive (VIDEO)
Caption
University of Auckland scientists have used tracking data to recreate dives by a Hector’s dolphin.
Animation shows a dive in real time using tracking information.
Triangle = surfacing (you can hear the splash as it breaks the surface and the breath)
Circle = moves as the dolphin dives down
Blue line = dorsal side up
Yellow line = upside down as the dolphin barrel rolls (on the shallow dive) or swims just above the seabed (on the deep dive)
Red starbursts = when the dolphin chases a fish, preceded by a 'buzz', a fast series of clicks that they use when targeting their prey
Clicks = the slower click, click, click is the dolphin’s echolocation sound
Continuous gentle 'woosh' = the sound of water running over the tag as the dolphin dives or surfaces (like the sound of wind passing if you were riding a bike)
Thin grey line on seabed = indicates the total path of the dolphin track
Source: University of Auckland
Credit
University of Auckland
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