Fish Detection Antennas (image) NOAA Fisheries West Coast Region Share Print E-Mail Caption Antennas embedded in a Washington stream bottom help measure how fish use restored habitat in an intensively monitored watershed. The parallel antennas are visible as the water flows over them. Credit John McMillan, NOAA Fisheries/NWFSC Usage Restrictions CREDIT: John McMillan, NOAA Fisheries/NWFSC Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.