Turning fish into audio pingers…

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Turning fish into high-tech acoustic pingers, it’s a like a real version of Electroplankton“The scientists have designed a field study that uses acoustic telemetry technology to track continuously the movements and habitat use of red and black grouper in the Dry Tortugas National Park, the 46-square-nautical-mile marine reserve. The groupers will be fitted with transmitters or “pingers” that emit unique acoustic codes underwater approximately every 20 seconds…The scientists are arranging the hydrophone receivers in a grid array, so they can systematically obtain continuous, precise tracks of animal locations, including daily travels and frequently visited areas.” [via] Link.

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