hti acoustic tags to track fish
DESCRIPTION
A brief introduction of using acoustic tags to track fish in three dimensions (3D).TRANSCRIPT
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New Uses of Acoustic Tags in Fisheries Research
Acoustic Tag Symposia
American Fisheries Society Annual MeetingAnchorage, Alaska
September 11th, 2005
New Uses of Acoustic Tags in Fisheries Research
Acoustic Tag Symposia
American Fisheries Society Annual MeetingAnchorage, Alaska
September 11th, 2005
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Types of Data
Census data from active
acoustic systems
1
Behavior data from acoustic tag
systems
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Rocky Reach Dam Showing Tag Coverage Area
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Acoustic Tags
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Hydrophones and Acoustic Tags
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Model 291 PortableAcoustic Tag Receiver
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The tag needs to be very small.
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Insert Copy Here
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Timing of the Start of Each Transmission is Precisely Controlled by a Microprocessor within the Tag
Tag Pulse Rate(Period)
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Duration of Tag Transmission PreciselyControlled by Microprocessor within Tag
Tag Pulse Width(or Pulse Length)
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Acoustic Tags-What are they?
Circuit Board
Ceramic
Batteries
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Acoustic Tag
SlowPulse Rate
Fast Pulse Rate
NarrowPulse Width
WidePulse Width
NarrowPulse Width
Wide Pulse Width
INCREASING TAG LIFE
Pulse Rate/Pulse Width
INCREASING TAG LIFE
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1/3 Peak
2/3 Peak
1/3 Peak
2/3 Peak
TimeError
TimeError
Transmitted CW Pulse
Transmitted Encoded Pulse
DetectedCW
DetectedEncoded Pulse
Acoustic TagEncoding
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Time BTime A
Time CTime D
X= 756.1
Y= 1709.5
Z= 86.4
( , , ) , ,
( , , ) , ,
( ) ( ) ( )
, ,
( ) ( ),
a a a x y z location of the tag
h h h x y z location of the i hydrophone
R dist from tag to i hydrophone
h a h a h a
t measured arrival time at i hydrophone
The values of a a a are such that
R R t t is a
i i ith
ith
i i i
ith
i j i ji ji j
1 2 3
1 2 3
1 12
2 22
3 32
1 2 3
1
4 2
determined
minimum
The Acoustic TagTracking System
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Acoustic Tag System:Basic Operation (3D)
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Data Processing in the Model 290 Acoustic Tag System
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Range of Detection Depends on:
a. Background Noise
b. Tag Pulse Length (and Coding)
c. Directivity Index of Hydrophone
d. Gain and Threshold Settings of the Receiver
e. Tag Source Level
Detection Range of Hydrophones
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• Deploy Enough Hydrophones to Detect Tags Throughout the Study Volume
• For Each “Cell” of Four Hydrophones, Ensure that All Hydrophones Do Not Lie in the Same Plane
• Ideal Geometry Has Equal Separation in X, Y, and Z Planes
Hydrophone Placement Geometry(Three Dimensional Tracking Studies)
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Geometry Modeling
x
y
20 40 60 80 100 120
20
40
60
80
100
120
Error in the y-dimension
x
y
20 40 60 80 100 120
20
40
60
80
100
120
Error in the x-dimension
x
y
20 40 60 80 100 120
20
40
60
80
100
120
Error in the z-dimension
x
y
20 40 60 80 100 120
20
40
60
80
100
120
Overall error
x
y
50 100 150 200 250
10
20
30
0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5 0.55 0.6 0.65 0.7 0.75 0.8 0.85
Predicted Positional Error (m)
1. 10, 10, 102. 100, 10, 103. 100, 100, 104. 10, 100, 10
5. 10, 10, 406. 100, 10, 407. 100, 100, 408. 10, 100, 40
Hydrophone Positions (m)
5 6
1 2
34
78
1. 10, 10, 102. 100, 10, 103. 100, 100, 104. 10, 100, 10
5. 10, 10, 406. 100, 10, 407. 100, 100, 408. 10, 100, 40
Hydrophone Positions (m)
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System Calibration
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Time (1 hour)
Tag
Perio
d (1150 m
sec)
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Hydrophone
1
2
3
4
5
6
7
8
9
10
11
12
Hydrophone Deployment
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Hydrophone
1
2
3
4
5
6
7
8
9
10
11
12
Basic Tracking
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Passage of Six Fish
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Wanapum Dam
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Resulting 3D Tracks
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Fish Passage Animation
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1.6 Million Data Points(918 Individual Fish)
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Density Plots
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Binary Density
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Vector Analysis and Streamtraces
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Streamtraces at Wanapum
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Resulting 3D Tracks180o
140o
120o
80o
40o
0o
180o
140o
120o
80o
40o
0o
Difference of Fish Heading from Water-Velocity Heading
Difference of Fish Heading from Water-Velocity Heading
Fish Behavior Pattern: Milling Fish
Fish Behavior Pattern: Milling Fish
1 2 3
4 5
6 7
8 9
10
1 2 3
4 5
6 7
8 9
10
1 2 3
4 5
6 7
8 9
10
1 2 3
4 5
6 7
8 9
10Turbine Units
Turbine Units
Turbine Units
Turbine Units
Bonneville DamBonneville Dam
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Surface Collector
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Rocky Reach Dam
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Three Dimensional Fish Track
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Fish and Flow
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Streamtraces at Rocky Reach
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Streamtraces at Rocky Reach
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Rock Island Dam Showing Approximate Coverage Area
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Species: Chinook Residence Time: 63 hr Type of Release: Morning Passage Route: Spill 1
Release Date: 4/26/01 Fish Length: 158 mm Release Time: 0758 Tag Code: 2586
Data Collected at Rock Island Dam,Powerhouse No. 1, during Spring of 2001
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Top Down View
Side View
Hydrophones
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Top Down View
Side View
Hydrophones
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Top Down View
Hydrophones
Side View
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Powerhouse No. 1Fish Path
Species: Chinook Forebay Residence Time: 2 h Swimming Pattern: Straight and Milling Passage Route: Spillgate 1
Release Date: 5/17/01 Fish Length: 185 mm Release Time: 1100 Tag Code: 2957
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North Fork Dam
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Fish Density Plot for North Fork Dam
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Image courtesy of www.snapperfarm.com
Aquaculture Applications
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Four Fish on a FAD
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3-Dimensional Tracks at Mayfield Dam
Three Dimensional Tracks at Mayfield Dam
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Thank YouThank You