REAL TIME THREE-DIMENSIONAL BEHAVIORAL RESULTS OF ACOUSTICALLY TAGGED SHRIMPFebruary 23, 2006byTracey W. Steig1andCharles H.Greene21Hydroacoustic Technology, Inc.2Ocean Resources and Ecosystems ProgramDepartment of Earth & Atmospheric Sciences, Cornell University

OutlineBackground of Study Acoustic Tag System, Setup, and Deployment Tagging Methods Data Collection Results and Conclusions

Background of Study

Acoustic Tag System, Setup, and Deployment

Tagging Methods

Data Collection

Results and Conclusions

BackgroundBioacoustic Workshops have been organized and presented by Chuck Greene annually over the last 10-15 years (along with numerous collaborators) Some of the workshops have been at Friday Harbor Laboratory (UW), San Juan Island in Puget Sound Results presented in this talk are from an experiment conducted at the Bioacoustic Workshop presented at Friday Harbor in August 2005

Bioacoustic Workshops have been organized and presented by Chuck Greene annually over the last 10-15 years (along with numerous collaborators)

Some of the workshops have been at Friday Harbor Laboratory (UW), San Juan Island in Puget Sound

Results presented in this talk are from an experiment conducted at the Bioacoustic Workshop presented at Friday Harbor in August 2005

Background (cont.) HTI is a manufacturer of acoustic tags and acoustic tag receivers, as well as scientific echosounders HTI’s acoustic tags have been primarily used with fish (mostly juvenile and adult salmonids) First application of using acoustic tags to monitor the behavior of species such as dock shrimp

HTI is a manufacturer of acoustic tags and acoustic tag receivers, as well as scientific echosounders

HTI’s acoustic tags have been primarily used with fish (mostly juvenile and adult salmonids)

First application of using acoustic tags to monitor the behavior of species such as dock shrimp

Acoustic Tag System ComponentsSystem ReceiverAcoustic Tag (0.75 g)HydrophoneOmni-directional hydrophone includes 20 dB pre-amp, temperature sensor, transmitter, and frequency band pass filters for 307 kHzTags operate at 307 kHz and are fully programmable for pulse width, period, and activationReceivers can simultaneously monitor signals from 16 hydrophones

X= 756.1 Y= 1709.5Z= 86.4Three-Dimensional Tracking SystemTime ATime BTime CTime D

Predicted 3D Positional ErrorReference: Ehrenberg and Steig 2001

Friday Harbor Laboratory, San Juan Island, University of Washington

Friday Harbor Laboratory, San Juan Island, University of WashingtonImage by William H. Calvin

Friday Harbor Laboratory Dock and Breakwater

Shrimp Experiment – Hydrophone Positions

Acoustic TagsMicro tagA-tagE-tagF-tag0.75 gm in air1.20 gm in air1.50 gm in air2.20 gm in airFully programmable for pulse width and period

Dock Shrimp (Pandalus danae)

Tagging the Shrimp

Releasing the Shrimp

Data Collection – Equipment Setup

Real-Time Tracking and Display

Acoustic Tag Shrimp Results

Acoustic Tag Shrimp Results

Tag #2161 (Allison)Tecplot Figures and Animation by Chris Mott

Tag #2023Notice up-down migration over 24 h period

Tag #2046 (Flippy)

Tag #2069

Tag #2092

Tag #2138 (Teuren)

H1H1H1First High Tide

H1F1H1F1H1F1Falling Tide

H1F1L1H1F1L1H1F1L1Low Tide

H1F1L1R1H1F1L1R1H1F1L1R1Rising Tide

H1F1L1R1H2H1F1L1R1H2F1H1L1R1H2Second High Tide

ConclusionsSuccessfully tagged 8 dock shrimp with acoustic tags and monitored their movements over a 24 h periodSuccessfully 3D tracked and displayed all of the tagged shrimp in real-timeMost shrimp showed an up-down migration over the 24 h monitoring periodFinally, acoustic tags offer a powerful tool for monitoring shrimp behavior

Successfully tagged 8 dock shrimp with acoustic tags and monitored their movements over a 24 h period

Successfully 3D tracked and displayed all of the tagged shrimp in real-time

Most shrimp showed an up-down migration over the 24 h monitoring period

Finally, acoustic tags offer a powerful tool for monitoring shrimp behavior

Thank YouThank YouTo learn more about this study, Contact: support@HTIsonar.com