• Episode 253 - The Secret Life Of Ponds With Acoustic Ecologist Jack Greenhalgh

  • Jun 28 2024
  • Length: 22 mins
  • Podcast

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Episode 253 - The Secret Life Of Ponds With Acoustic Ecologist Jack Greenhalgh

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  • Summary

  • One of my favorite quotes comes from Anthropologist Loren Eiseley. He said, “If there is magic on this planet, it is contained in water.” In this episode I’m going to prove it. A lot of you probably know that the first stage of my professional career was as a SCUBA instructor and commercial diver. I spent thousands of hours under the surface of the Pacific Ocean, enthralled by what my hero Jacques Cousteau called The Silent World. We divers used to laugh good-naturedly at that, because the ocean is anything but silent. It’s filled with noise, and I’m not talking about boats and such, although there’s plenty of that, too. I’m talking about snapping shrimp, parrotfish, ocean waves and swells passing overhead, the clicks of dolphins, the eerie call of whales, and all the other sounds we used to listen to and wonder about. But it isn’t just oceanic creatures that make noise. As you’re about to learn, it turns out that freshwater ponds are filled with sound. Yes, that still, calm little pond over there may be quiet above, but most likely, below the surface, there’s a whole symphony going on. My guest on this program is an acoustic ecologist who has studied aquatic sound, but more than that, he has come up with ways to use sound as a predictor of freshwater environmental health—and as a tool for the restoration of ponds in areas where human activity has degraded them.
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