In order to study how young fish such as salmon are affected by swimming through hydroelectric dams, scientists have traditionally equipped them with surgically-implanted acoustic tracking tags.

If you're going to check how fish are affected by hydroelectric dams, it's particularly important to monitor tiny, delicate individuals. That's why US scientists have developed what is claimed to be ...

A new acoustic fish-tracking tag is so tiny it can be injected with a syringe. It's small size enables researchers to more precisely and safely record how fish swim through dams and use that ...

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 ...

Bird researcher Dale Whaitiri was on an island off southern New Zealand examining the stomach contents of a baby seabird when an electronic device the size of a grain of rice spilled from the bird’s ...

A self-powered fish-tracking tag uses a flexible strip containing piezoelectric materials to emit tiny beeps that are recorded by underwater microphones. The device is designed for longer-living fish ...

Biologists from the Florida Fish and Wildlife Conservation Commission tag bass ahead of the kickoff of the Hooked on Lake Apopka Fish Tag Challenge, Wednesday, January 13, 2021. Sponsored by the ...

Andre Thomas loves catching redfish, but not for their culinary qualities. The avid angler tags and releases them as part of the TAG Louisiana program. (Photo courtesy of Andre Thomas) Andre Thomas ...

HIGHLANDS, N.J. (WFXR) – “There she is, there she is, Fish on, fish on,” shouted Chuck Manny as a huge striped bass began to peel line off a reel off the coast of northern New Jersey. Manny is an ...

Charlie Bush of Luling tagged more than 2,000 speckled trout last year. (Charlie Bush photo) Last year, 213 Louisiana anglers tagged at least 20 fish and qualified for an invitation to the TAG ...