Title : 
Technical Assessment Of Fisheries Hydroacoustics
         
        
            Author : 
Feldman, Henry R.
         
        
            Author_Institution : 
Applied Physics Laboratory, University of Washington, Seattle, Washington
         
        
        
            fDate : 
Aug. 29 1983-Sept. 1 1983
         
        
        
        
            Abstract : 
This paper discusses the present techniques used in fisheries hydroacoustics with an emphasis on some newer developments in fish stock assessment. The basic technique of echo integration is briefly described. Methods now in use and coming into use as tools in fisheries hydroacoustics are discussed in a functional and technical context.
         
        
            Keywords : 
Acoustic beams; Acoustic pulses; Acoustic signal detection; Acoustic transducers; Attenuation; Calibration; Equations; Frequency; Marine animals; Sea measurements;
         
        
        
        
            Conference_Titel : 
OCEANS '83, Proceedings
         
        
            Conference_Location : 
San Francisco, CA, USA
         
        
        
            DOI : 
10.1109/OCEANS.1983.1151959