_interview-with-the-porpoise.jpg "Interview with the porpoise from ping sonar Video Screenshot Preview")
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⏲ Duration: 3 min 33 sec
✓ Published: 21-Feb-2019
✓ Published: 21-Feb-2019
Description:
Every year, many of the already rare porpoises in the Baltic Sea die in gillnets, as their sonar does not classify the nets as an obstacle. The Thünen PhD student Isabella Kratzer researches how to modify the gillnet in a way that it becomes acoustically visible to the porpoise. The solution may have been overlooked literally for years: small, translucent plexiglass pearls sound as big as a ping-pong ball in porpoise language. Whether and how the porpoises react to the pearl net was testet in f
Every year, many of the already rare porpoises in the Baltic Sea die in gillnets, as their sonar does not classify the nets as an obstacle. The Thünen PhD student Isabella Kratzer researches how to modify the gillnet in a way that it becomes acoustically visible to the porpoise. The solution may have been overlooked literally for years: small, translucent plexiglass pearls sound as big as a ping-pong ball in porpoise language. Whether and how the porpoises react to the pearl net was testet in f
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