acoustic tagging studies – beyond presence/absence
DESCRIPTION
Acoustic tags can provide information about fish populations. For example, presence/absence. If detections are uniformly spaced to a high level of precision, these detections can assess fish behavior. Example behaviors include: Moving towards and away Holding Defecation Downstream migration Fish passage Searching Predator avoidance This presentation illustrates examples of how fish are being monitored in 2D and 3D using acoustic tag technology to improve fisheries management along the West coast and elsewhere in the world.TRANSCRIPT
Acoustic tagging studies – beyond presence/absence
Kevin Kumagai, Sam Johnston, and Colleen SullivanHydroacoustic Technology, Inc.
47th Annual Conference of the California-Nevada Chapter AFSApril 4th - April 6th, 2013
Davis Veterans Memorial Center
Overview
• Acoustic tags can provide information about fish populations. For example, presence/absence.
• If detections are uniformly spaced to a high level of precision, these detections can assess fish behavior.
• Example behaviors include:• Moving towards and away• Holding• Defecation• Downstream migration• Fish passage• Searching• Predator avoidance
Acoustic tags = information
• Acoustic tags can provide information about fish populations. For example, presence/absence.
Single hydrophone deployments
• Can provide presence/absence
Hydrophone 1
Upstream
Barrier
Downstream
Hydrophone 12
Detection histories
• Are chronology of time-stamped tag detections
Fish survival and fish passage
• Can measured from the these detection histories
Uniform spacing, high precision: fish behavior
• Acoustic tags can provide information about fish populations.
• If detections are uniformly spaced to a high level of precision, these detections can assess fish behavior.
Tag ID encoded in unique period
(adapted from Ehrenberg and Steig, 2009)
Acoustically tagged fish movement animation
Display 1
Display 2
Display 3
Display 4
Display 5
Display 6
Display 7
Single hydrophone example behaviors
• Acoustic tags can provide information about fish populations.
• If detections are uniformly spaced to a high level of precision, these detections can assess fish behavior.
• Behaviors in this example include:• Moving toward and away• Holding• Defecation
Single upstream hydrophone example moving toward and away
Single downstream hydrophone example moving toward and away
Moving toward and away
Single hydrophone example behaviors
• Acoustic tags can provide information about fish populations.
• If detections are uniformly spaced to a high level of precision, these detections can assess fish behavior.
• Behaviors in this example include:• Moving toward and away• Holding• Defecation
Single hydrophone example holding behavior
Time duration 1 hour
Defecation
• Acoustic tags can provide information about fish populations.
• If detections are uniformly spaced to a high level of precision, these detections can assess fish behavior.
• Behaviors in this example include:• Moving toward and away• Holding• Defecation
Defecation
Time duration 1 hour
Hydrophone
1
2
3
4
5
6
7
8
9
10
11
12
Basic Tracking
Flow
Nearest Green Hydrophone
Nearest Maroon Hydrophone
Nearest Orange Hydrophone
Nearest Turquoise Hydrophone
Nearest Yellow Hydrophone
Nearest Blue Hydrophone
Hydrophone Detections: Summary
2D tracks example behaviors
• Acoustic tags can provide information about fish populations.
• If detections are uniformly spaced to a high level of precision, these detections can assess fish behavior.
• Behaviors in this example include:• Holding• Downstream migration• Searching• Fish passage• Predator avoidance
Multiple hydrophone deployment
Downstream
Upstream
Barrier
Time Slider
Steelhead 2D positions(green)
Striped bass 2D positions(red)
Sun and moon gadget
Holding, 23:03-23:04
Tagged striped bass (red spheres) holding between blue and yellow hydrophones. Data courtesy of CDWR.
Holding, 23:04-23:05
Tagged striped bass continues holding. Steelhead tag (light green spheres) approaching array below pink and green hydrophones. Data
courtesy of CDWR.
Downstream migration, 23:05-23:06
Steelhead tag continues moving downstream through upstream array. Striped bass continues to hold. Data courtesy of CDWR.
Downstream migration, 23:06-23:07
Steelhead tag approaching barrier while striped bass continues to hold. Data courtesy of CDWR.
Searching, 23:07-23:08
Steelhead tag begins searching along barrier. Striped bass continues to hold. Data courtesy of CDWR.
Searching, 23:08-23:09
Steelhead tag continues searching along barrier. Striped bass continues to hold. Data courtesy of CDWR.
Searching, 23:09-23:10
Steelhead tag continues searching along barrier. Striped bass continues to hold. Data courtesy of CDWR.
Searching, 23:10-23:11
Steelhead tag continues searching along barrier. Striped bass continues to hold. Data courtesy of CDWR.
Fish passage, 23:11-23:12
Steelhead tag passes barrier via culvert. Striped bass continues to hold. Data courtesy of CDWR.
Fish passage, 23:12-23:13
Steelhead tag continues past barrier. Striped bass continues to hold. Data courtesy of CDWR.
Fish passage, 23:13-23:14
Steelhead tag continues past barrier. Striped bass begins to move. Data courtesy of CDWR.
Predator avoidance, 23:14-23:15
As steelhead tag passes over striped bass, steelhead tag appears to avoid bass moving counter-clockiwse. Striped bass also moves
downstream. Data courtesy of CDWR.
Predator avoidance, 23:15-23:16
Steelhead tag continues circling counter-clockwise as striped bass moves slightly downstream. Data courtesy of CDWR.
Predator avoidance, 23:16-23:17
Steelhead tag continues circling counter-clockwise as striped bass moves slightly downstream. Data courtesy of CDWR.
Predator avoidance, 23:17-23:18
Steelhead tag continues circling counter-clockwise as striped bass moves slightly downstream. Data courtesy of CDWR.
Predator avoidance, 23:18-23:19
Steelhead tag continues circling counter-clockwise as striped bass moves slightly downstream. Data courtesy of CDWR.
Predator avoidance, 23:19-23:20
Steelhead tag appears to avoid striped bass again as passes by. Data courtesy of CDWR.
Predator avoidance, 23:20-23:21
Both tags moving downstream. Data courtesy of CDWR.
Predator avoidance, 23:21-23:22
Steelhead tag leaves downstream. Striped bass holding further downstream. Data courtesy of CDWR.
Summary 2D tracks
2010 Animation
Eonfusion screen capture showing concurrent tag tracks, hydrophone positions, tidal, velocity, flow, flap gate operation, sun and moon phase within a geo-referenced image of the ORT area. Data courtesy of CDWR.
2011 Animation
Eonfusion screen capture showing concurrent tag tracks, hydrophone positions, river stage height, sun and moon phase within a geo-
referenced image of the ORT area. Data courtesy of CDWR.
Summary
• Acoustic tags can provide information about fish populations. For example, presence/absence.
• If detections are uniformly spaced to a high level of precision, these detections can assess fish behavior.
• Example behaviors include:• Moving towards and away• Holding• Defecation• Downstream migration• Fish passage• Searching• Predator avoidance
References
• Ehrenberg, J. E., and Steig, T. W. 2009. A study of the relationship between tag-signal characteristics and achievable performances in acoustic fish-tag studies. ICES Journal of Marine Science, 66: 1278–1283.
• Kumagai, K.K., S.V. Johnston, C. Sullivan, and P.A. Nealson. 2010. Two-dimensional fish tracking study in the Old River at Tracy barrier in 2010. Report to California Department of Water Resources, Sacramento, Calif., by Hydroacoustic Technology, Inc., Seattle, Wash.
• Tunnicliffe, C., K.K. Kumagai, and S.V. Johnston. 2011. Two-dimensional fish tracking study in the Old River at Tracy barrier in 2011. Report to California Department of Water Resources, Sacramento, Calif., by Hydroacoustic Technology, Inc., Seattle, Wash.
Acknowledgments
• California Department of Water Resources (CDWR)
Questions?
Kevin Kumagai, Sam Johnston, and Colleen SullivanHydroacoustic Technology, Inc.
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