Sound Metrics | See What Others Can't

• Marine Life Behavior Observations
• Fish Surveys/Enumeration

GENERAL

• LFV Hydroacoustics discusses fish observation with DIDSON
• Alaska Department of Fish & Game Sports Fish Home page with reports and much information available
• Alaska Department of Fish & Game Commercial Fisheries Home page with reports and much information available
• Chinook Salmon Research Initiative - Copper River
• The role of sonar in Copper River salmon escapement monitoring & commercial fisheries management (PDF)
• US Dept of Interior/Bureau of Reclamation (search for DIDSON)

• Use of Dual-Frequency Identification Sonar to Monitor Adult River Herring in a Small Coastal Stream
• Vision in Turbid Water MTS/ADCI 2006 (PDF)
• Evaluation of DIDSON as Fisheries Monitoring Tool: Exploiting the Acoustic Advantage - UK Env. Agency 3/05 (PDF)
• Use of DIDSON to Verify Split-Beam Estimates of Salmon Flux and to Examine Fish Behaviour in the Fraser River Pacific Salmon Commission 11/05 (PDF)
• Use of High-Resolution DIDSON Sonar to Quantify Attributes of Predation at Ecologically Relevant Space and Time Scales
• W. S. C. Gurney, Louise O. Brennan, P. J. Bacon, K. F. Whelan, Martin O'Grady, Eileen Dillane & P. McGinnity (2014) Objectivey Assigning Species and Ages to Salmonoid Length Data from Dual-Frequency Identification Sonar, Transactions of the American Fisheries Society, 143:3, 573-585

MARINE LIFE BEHAVIOR OBSERVATIONS

• A novel monitoring technique for the endangered Sakhalin taimen (Salmonidae)
• Measuring Nighttime Spawning Behavior of Chum Salmon Using DIDSON
• Clear vision on fishy behavior
• Sonar reveals the secret fears of fish
• Sonar reveals the hidden secrets of NSW rivers
• Fish Behavior & the Performance of Baited Fishing Gear

• Estimating the size of the spawning population and evaluating environmental controls on migration for a critically endangered Asian salmonid, Sakhalin taimen
• Poster illustrating installation of 24" steel piles supporting work trestles driven to a bearing capacity of 170 tons and temporary 16" steel pile supports for new bridge trestle with a capacity of 40 tons (PDF)
• Comparison of split-beam and DIDSON hydroacoustic gears for conducting sturgeons surveys 9/07 (PDF)
• Assessment of DIDSON for application in fish migration studies New South Wales, Australia 4/06 (PDF)
• Video and acoustic camera techniques for studying fish under ice: a review and comparison PNNL in Alaska 4/06 (PDF)
• Applying Sonar Technology to Pollock Fisheries Management North Pacific Research Board 2005 (PDF)
• Imaging Fall Chinook Salmon Redds in the Columbia River - USGS Western Fisheries Research Center - 2004 (PDF)
• Use of High-Resolution DIDSON Sonar to Quantify Attributes of Predation at Ecologically Relevant Space and Time Scales

FISH SURVEYS/ENUMERATION

• Estimating Fish Size from DIDSON images
• Counting Fish in Rivers Just Got Easier
• Using Sound to Count Salmon in Fraser River, Canada
• Field Testing of New Acoustic Camera
• Alaska Fisheries Sonar
• River Teifi Hydro acoustic Fish Counter Update-2006
• Alaska King Salmon Adventure

• Automated Acoustic Method for Farmed Fish Counting & Sizing During Its Transfer Using DIDSON
• Evaluation of a DIDSON for Detecting and Estimating the Size of Migrating Salmon Alaska Dept F&G 8/07 (PDF)
• AFS San Francisco Abstracts List 9/07 (PDF)
• Site Selection and Feasibility of Enumerating Dolly Varden using DIDSON in the Hulahula River, Arctic National Wildlife Refuge 8/06 (PDF)
• Accuracy & precision of fish-count data from a DIDSON imaging system - ICES Journal of Marine Science 8/05 (PDF)
• Validation of a Long Range DIDSON for Fish Passage Enumeration in the Methow River - Columbia River Inter-Tribal Fish Comm. & Yakama Nation Dept of Fish 11/05 (PDF)
• Case Study: Alaska Dept Fish & Game Uses DIDSON to Count Spawning Salmon Ed Belcher, Sound Metrics 1/04 (PDF)
• The Feasibility of Estimating Migrating Salmon in Turbid Rivers Using DIDSON - Alaska Dept F&G 3/04 (PDF)
• An Evaluation of Fish Behavior Upstream of the Water Temperature Control Tower at Cougar Dam, Oregon, using acoustic cameras, 2013 (PDF)