Birdwatch Note Rating
2023-06-23 21:14:07 UTC - NOT_HELPFUL
Rated by Participant: 9A60D8DE54FB87D216620ECD9B35E97B8E6BC5174726A794E9D170129322087F
Participant Details
Original Note:
Radio frequencies used by GPS cannot penetrate water beyond a few centimetres. https://link.springer.com/article/10.1007/s00190-018-1147-x Wildlife trackers with transmitting capability either use acoustic signals to a nearby vessel, or RF which requires the animal to surface or the tag to detach and float (by design). https://www.himb.hawaii.edu/ReefPredator/Tools.htm
All Note Details