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Advanced Survey Technologies
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Test tank planned as part of new La Jolla Consolidation Project
Autonomous underwater vehicle
Latest info regarding field work
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Resources
Target Strength Calculator
Online calculator used to obtain TS values of spheres for acoustic calibrations
Autonomous Underwater Vehicle
Video about the AST's Autonomous Underwater Vehicle
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The Advanced Survey Technologies Program (AST) is part of the Fisheries Resources Division (FRD)
at the Southwest Fisheries Science Center (SWFSC). AST supports ecosystem-based fisheries management
through new or innovative uses of sampling technologies. AST's objectives include:
- to characterize measurements and sampling uncerntainties, and define gaps in existing data,
- develop, refine, and employ advanced survey technologies to improve the accuracy, precision and efficiency of fisheries surveys and thus resulting stock assessments,
- conduct fisheries research and surveys using the instrumentation and methods the AST develops, and
- to maintain an emphasis on the scientific objectives, opposed to the instrument or instrument platform being developed.
Examples of advanced survey technologies include: multi-frequency acoustic systems, instrumented buoys, instrumented small craft, and autonomous underwater vehicles (AUV).
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Research activities
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News
- David Demer chaired 3rd meeting of ME70/MS70 Users Group, presenting work by Randy Cutter
- Randy Cutter presented paper 'Investigating fish-school behavior using variable-aperture processing of multi-beam sonar data" in Reykjavik, Iceland
- David Demer chaired ICES study group on Calibration of Acoustic Instruments in Reykjavik, Iceland
- David Demer and Randy Cutter attended ICES meeting in Woods Hole, MA on May 3-4
- Participated in Shimada Shakedown Cruise
- Conducted join work with sardine industry
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Recent publications
- Cox, Martin J., Joseph D. Warren, David A. Demer, George R. Cutter, and Andrew S. Brierley. 2010. Three-dimensional observations of swarms of Antarctic krill (Euphausia superba) made using a multi-beam echosounder. Deep-Sea Research II 57(7-8):508-518.
- Cutter, George R., Jr., Laurent Berger, and David A. Demer. 2010. A comparison of bathymetry mapped with the Simrad ME70 multibeam echosounder operated in bathymetric and fisheries modes. ICES Journal of Marine Science 67(6):1301-1309.
- Graham, Tanya R., James T. Harvey, Scott R. Benson, Josiah S. Renfree, and David A. Demer. 2010. The acoustic identification and enumeration of scyphozoan jellyfish, prey for leatherback sea turtles (Dermochelys coriacea), off central California. ICES Journal of Marine Science 67(8):1739-1748.
- Warren, Joseph D., and David A. Demer. 2010. Abundance and distribution of Antarctic krill (Euphausia superba) nearshore of Cape Shirreff, Livingston Island, Antarctica, during six austral summers between 2000 and 2007. Canadian Journal of Fisheries and Aquatic Sciences 67(7):1159-1170.
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Pictures and videos
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Last modified:
12/18/2012 |
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