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Old 12-05-2001, 11:45 AM
John Desjardins John Desjardins is offline
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Join Date: Feb 2000
Location: Central MA
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Question Selectively keeping non-native fish out of areas

My morning review of things for work today lead me to this press release that talks about how some Australians are attempting to keep carp out of some wetlands. Apparently sending a 20 Hz sound wave into the water scares the carp away.

This makes me wonder 2 things.

Are there frequencies that work with other fish?

What frequencies do fisherman emit when fishing?
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