Earth Systems Science Division 1 article published in JoVE Behavior Handling and Tagging Techniques for Implanting Juvenile American Shad with a New Acoustic Microtransmitter Katherine A Deters1, Jill M Janak1, Robert P Mueller1, Brandon T Boehnke1, Zhiqun Daniel Deng1 1Earth Systems Science Division, Pacific Northwest National Laboratory This article provides a detailed procedure for optimal handling practices and implantation of an acoustic micro transmitter into juvenile American shad. The results of our laboratory study suggest that these tagging techniques could be implemented in field studies of juvenile American shad with a high probability of survival.