Method and apparatus for separating dolphin from tuna
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United States of America Patent
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Jul 28, 1992
Grant Date -
N/A
app pub date -
Dec 28, 1990
filing date -
Dec 28, 1990
priority date (Note) -
Expired
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Abstract
A method and apparatus for using the primordial fear of dolphin of killer whales to separate dolphin from tuna. The sound of killer whale is recorded, digitized, edited and enhanced to produce digitally synthesized killer whale sounds. These digitally synthesized sounds of one or more feeding killer whale is played under water and in the vicinity of a mixed school of dolphin and tuna and as the dolphin leave said vicinity, catching the tuna in nets. A playback unit is selectively triggered on and off from a remote location.
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