We spend a day with Paul Hartfield and a researcher collegue on the river to learn how they are tracking local sturgeon population. The fish get little transmitters implanted which transmit an audio “ping” every couple of minutes. Every signal is unique and once it’s picked up by the hydrophones of their vessel a software tells them exactly which fish it is. To gather enough data they had to get on the water a couple of hundred times, driving up and down the River. Even though they enjoy being out there, they liked the idea to automize this process with ORB

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