Hydroacoustic estimates of fish abundance

Technical Report · Mon Jun 01 00:00:00 EDT 1992

OSTI ID:6887608

Wilson, W K

Mobile hydroacoustic surveys are a recent addition to the sampling techniques available to fisheries biologists. Hydroacoustic techniques for fish stock assessment and monitoring are efficient in providingquantitative biomass estimates, absolute population estimates, fish distribution patterns, and size structure statistics. Other advantages of hydroacoustic surveys include a better method of sampling reservoir pelagic (open water) zones than is available with other techniques, collection of large amounts of data in a relatively short time allowing improved statistical interpretation and data comparisons, and non-destructive, non-invasive sampling that neither destroys the sampled fish nor disturbs the environment. The objective of this study is to use hydroacoustic techniques to estimate fish standing stocks (i.e., numbersand biomass) in several areas of selected Tennessee Valley Reservoirs as part of a base level monitoring program to assess long-term changes in reservoir water quality.

• Research Organization: Tennessee Valley Authority, Chattanooga, TN (United States). Div. of Water Resources
• Sponsoring Organization: TVA; Tennessee Valley Authority, Knoxville, TN (United States)
• OSTI ID: 6887608
• Report Number(s): TVA/WR-92/4; ON: DE93008978
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
13 HYDRO ENERGY
FISHES
SURVEYS
WATER RESERVOIRS
WATER QUALITY
BIOMASS
COMPILED DATA
SONAR
TENNESSEE VALLEY AUTHORITY
ANIMALS
AQUATIC ORGANISMS
DATA
ENERGY SOURCES
ENVIRONMENTAL QUALITY
INFORMATION
MEASURING INSTRUMENTS
NATIONAL ORGANIZATIONS
NUMERICAL DATA
RANGE FINDERS
RENEWABLE ENERGY SOURCES
SURFACE WATERS
US ORGANIZATIONS
VERTEBRATES
540310* - Environment
Aquatic- Basic Studies- (1990-)
130600 - Hydro Energy- Environmental Aspects