Accession Number : ADA310186

Title :   Development of Advanced Volume Scattering Instrumentation. A Bottom Moored and Drifting Bioacoustic Sensing Platform and Relay.

Descriptive Note : Final rept. 1 May 93-31 Dec 94,

Corporate Author : WOODS HOLE OCEANOGRAPHIC INSTITUTION MA DEPT OF BIOLOGY

Personal Author(s) : Wiebe, Peter H. ; Stanton, Timothy K.

PDF Url : ADA310186

Report Date : 30 JUN 1995

Pagination or Media Count : 8

Abstract : The long range goal of this project has been to develop acoustical techniques and instruments for the measurement and analysis of the spatial and temporal structure of oceanic and neritic zooplankton and micronekton populations. In this particular effort, we refined, tested, and evaluated an existing prototype autonomous active acoustic system (the BIOacoustic Sensing Platform And Relay - BIOSPAR) for observation of high frequency (120 and 420 kHz) acoustic backscattering. The system was reconfigured so that it could command and control a newly developed digital echo sounder now produced by BioSonics, Inc. The system has been field tested on two cruises to Georges Bank and the Gulf of Maine.

Descriptors :   *BACKSCATTERING, *ACOUSTIC SCATTERING, *BIOACOUSTICS, *ZOOPLANKTON, DIGITAL SYSTEMS, HIGH FREQUENCY, OBSERVATION, LONG RANGE(TIME), LONG RANGE(DISTANCE), COMMAND AND CONTROL SYSTEMS, INSTRUMENTATION, ACOUSTICS, ECHO RANGING, MAINE GULF.

Subject Categories : Biology
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE