Fisheries Acoustics Information
Fisheries acoustics includes a range of research and practical application topics using acoustical devices as sensors in aquatic environments. Acoustical techniques can be applied to sensing aquatic animals, zooplankton, and physical and biological habitat characteristics.
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Biomass estimation
Biomass estimation is a method of detecting and quantifying fish and other marine organisms using sonar technology.[1] As the sound pulse travels through water it encounters objects that are of different density than the surrounding medium, such as fish, that reflect sound back toward the sound source. These echoes provide information on fish size, location, and abundance. The basic components of the scientific echo sounder hardware function is to transmit the sound, receive, filter and amplify, record, and analyze the echoes. While there are many manufacturers of commercially available "fish-finders," quantitative analysis requires that measurements be made with calibrated echo sounder equipment, having high signal-to-noise ratios.
Notes
- ^ Simmonds J. & MacLennan D. (2005). Fisheries Acoustics: Theory and Practice, second edition. Blackwell
References
- Fisheries Acoustics Simmonds, E John and MacLennan, David N (2005) Blackwell Publishing. ISBN 9780632059942
- Acoustics Unpacked A great reference for freshwater hydroacoustics for resource assessment - "how to"
- "Fish Acoustics at the Great Lakes Environmental Research Lab"
- Inter-Calibration of Scientific Echosounders in the Great Lakes
- Evaluation of Methods to Estimate Lake Herring Spawner Abundance in Lake Superior
- Estimating Sockeye Salmon Smolt Flux and Abundance with Side-Looking Sonar
- Herring Research: Using Acoustics to Count Fish.
- Hydroacoustic Applications in Lake, River and Marine environments for study of plankton, fish, vegetation, substrate or seabed classification, and bathymetry.
- Hydroacoustics: Rivers (in: Salmonid Field Protocols Handbook: Chapter 4)
- Hydroacoustics: Lakes and Reservoirs (in: Salmonid Field Protocols Handbook: Chapter 5)
- Hydroacoustic Evaluation of Spawning Red Hind Aggregations Along the Coast of Puerto Rico in 2002 and 2003
- Feasibility Assessment of Split-Beam Hydroacoustic Techniques for Monitoring Adult Shortnose Sturgeon in the Delaware River
- Categorising Salmon Migration Behaviour Using Characteristics of Split-beam Acoustic Data
- PAMGUARD: An Open-Source Software Community Developing Marine Mammal Acoustic Detection and Localisation Software to Benefit the Marine Environment; http://www.pamguard.org/home.shtml
- FAO: Fish capture technology (historical, but still relevant): Fish Detection Equipment, Rome.
External links
- ICES Working Group on Fisheries Acoustics, Science and Technology
- Case Studies & Applications for fisheries and fisheries habitat, e.g. zooplankton, fish, submersed aquatic vegetation (SAV), and substrate.
- Census of Marine Life - Acoustic Technology]
- Fisheries acoustics discussion forum Web based discussion forum on fisheries acoustics with topics including theory, hardware, software and data processing/analysis.
- Fisheries Acoustics Research University of Washington.
- Publications for Fisheries Acoustics, e.g. acoustic tag and passive hydroacoustic echo sounder research.
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Categories: Fisheries science
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