AUDIO RECORDING: Documentary-Maker Talks About Orca Numbers At Bremer Canyon In Australia
Could hydrocarbon be the mysterious nutrient source behind huge killer whale, shark and fish numbers at Bremer Canyon, Australia? Documentary-maker David Riggs talks to ABC Esperance.
With audio recording:http://www.abc.net.au/local/audio/2014/02/25/3952120.htm
Find out more about David's documentaries: http://www.riggsaustralia.com/
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