A large dataset of detection and submeter-accurate 3-D trajectories of juvenile Chinook salmon

Acoustic telemetry has been used extensively to study the behavior of
aquatic animals. The Juvenile Salmon Acoustic Telemetry System (JSATS) is
one such system; it was developed for studying juvenile salmonids but has
been used to study numerous species. A recent innovation of the JSATS
system is an injectable acoustic transmitter that is small enough to be
implanted through injection instead of surgery. Use of the JSATS system
involves deploying cabled acoustic receivers at hydroelectric dams and
autonomous acoustic receivers in free-flowing sections of a river. The raw
detections from acoustic-tagged fish are processed to remove potential
false positives. The clean detections (5,147,996 total) are used to
generate detection events and to compute 3-D trajectories (403,900 total),
which are used to assign fish to a passage route through a dam. Controlled
field testing involving a high-accuracy Global Positioning System receiver
is done to validate the submeter accuracy of the trajectories. The JSATS
dataset could be reused for expanding the understanding of near-dam fish
behavior.