Tuesday May 21, 2024
Lodi News —
Without their knowledge, they are tracked.
There are little transmitters in their bodies, slipped inside when they were groggy, unknowing.
The tracking goes on 24 hours a day, every day. Sometimes for weeks, sometimes for months.
It is, though, all for the good.
This surveillance is done so fish in the Mokelumne River – and fishes all over Northern California and beyond – might survive and thrive.
Acoustic tracking, it is called. At any given time, there are hundreds of fishes swimming about with tiny implanted transmitters. As they swim, they ping out signals to an array of 400 receivers throughout the Sacramento-San Joaquin Delta and San Francisco Bay.