Those pinging tags scientists use to track and study fish may also be proving predators an acoustic roadmap to find them. Testing the theory on grey seals which are known to use sound to their ...

To study fish or invertebrates in the sea, scientists often mark individual animals with acoustic tags that make soft, ultrasonic pinging noises. The marked swimmer can’t hear that noise, but other ...

Tracking some young salmon has always had one hitch: the tiny fish are too small for the injectable tags researchers use to track fish as they move past hydropower dams. To make the tags smaller, ...

RFID innovation is forging into increasingly challenging environments to help industries benefit from automatically identifying objects. One such innovation is taking place underwater, with the ...

Fish tagging and growth assessment are critical components in fisheries research and management, providing insights into individual life histories, population dynamics, and the overall health of ...

BILLINGS – Montana Fish, Wildlife & Parks staff, in cooperation with Montana State University, have begun tagging trout in the Big Hole, Beaverhead, Ruby and Madison rivers. This tagging effort is ...

It's hard to do research when your test subjects keep getting eaten. Scientists studying the movements of smaller fish in the Great Lakes increasingly use a technology called acoustic telemetry — ...

SALEM, Ore. (KTVZ) — Nearly 50 percent of hunters and anglers in Oregon are using e-tagging. Instead of carrying a paper tag, they can tag fish and wildlife on their phone using the MyODFW app. Major ...