9780849323331

Acoustic Fish Reconnaissance

by ;
  • ISBN13:

    9780849323331

  • ISBN10:

    0849323339

  • Edition: 1st
  • Format: Hardcover
  • Copyright: 2006-03-21
  • Publisher: CRC Press

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Summary

Until now, there has not been any work that systematically presents the subject of acoustic fish reconnaissance, details all major aspects of applying acoustic equipment in commercial fish reconnaissance, and offers sufficient analysis of the effectiveness of fish-finding techniques. Acoustic Fish Reconnaissance responds to this need by providing the first overview of the theoretical and practical aspects of acoustic search, detection, interpretation, and population estimation for commercial benefit.This book pays particular attention to the theory and practice of accounting surveys for quantitative estimation of biological resources and fishing conditions in traditional fishing areas. It also analyzes various applications of acoustic technique, based upon the authors' extensive investigations. The text includes the results of the applicability of fish-finding instruments, and offers recommendations on the development of improved acoustic techniques for commercial fleets.

Table of Contents

Preface vii
Acknowledgments ix
About the Authors xi
Introduction xiii
List of Symbols xvii
Chapter 1 Sound Scattering by Commercial Items 1(34)
1.1 Characteristics of the Reflectivity of Aquatic Animals
1(4)
1.2 Sound Scattering by an Individual Item
5(10)
1.3 Sound Scattering by Item Concentrations
15(8)
1.4 Classification of Echo Signals from Commercial Items
23(4)
1.5 Statistical Properties of Echo Signals from Commercial Items
27(3)
References
30(5)
Chapter 2 Scouting Characteristics of Acoustic Instruments 35(28)
2.1 Range of Detection of Commercial Items
35(6)
2.2 Zone of Detection of Commercial Items
41(7)
2.3 Resolving Capacity of Acoustic Instruments
48(3)
2.4 Rational Choice of Parameters of Acoustic Instruments
51(11)
References
62(1)
Chapter 3 Search for Commercial Items with Acoustic Instruments 63(20)
3.1 Shapes of Distributions of Commercial Items and Their Registration by Acoustic Instruments
63(9)
3.2 Tactics of Search for Commercial Concentrations
72(8)
References
80(3)
Chapter 4 Efficiency of Detection of Commercial Items with Acoustic Instruments 83(22)
4.1 Possibilities of Detection of Commercial Items by Echo Sounder
83(7)
4.2 Peculiarities of Detection of Commercial Items
90(6)
4.3 Possibilities of Detection of Commercial Items by Sonar
96(4)
4.4 Practical Estimation of Scouting Possibilities of Acoustic Instruments
100(4)
References
104(1)
Chapter 5 Species and Size Interpretation of Recordings of Commercial Items 105(18)
5.1 Species and Size Interpretation of Echograms
105(7)
5.2 Species and Size Interpretation of Recordings by Instrumental Methods
112(8)
References
120(3)
Chapter 6 Quantitative Interpretation of Recordings of Commercial Items 123(26)
6.1 Theoretical Questions of Determining the Density of Commercial Concentrations
123(6)
6.2 Methods of Calibration of Acoustic Instruments
129(5)
6.3 Quantitative Interpretation of Commercial Recordings by Echo Sounder
134(4)
6.4 Quantitative Interpretation of Commercial Recordings by Sonar
138(8)
References
146(3)
Chapter 7 Acoustic Surveys of Commercial Resources 149(36)
7.1 Acoustic Survey Tactics
150(8)
7.2 Survey Data Collection and Treatment
158(4)
7.3 Acoustic Survey Errors
162(9)
7.4 Acoustic Survey Practice and Perspectives
171(6)
7.5 Economic Efficiency of Surveys
177(5)
References
182(3)
Chapter 8 Fisheries-Acoustic Surveys 185(32)
8.1 The Essence of Fisheries-Acoustic Surveys
185(4)
8.2 Surveys of Fishing Conditions
189(6)
8.3 Surveys of Commercial Resources
195(2)
8.4 Ecological Surveys
197(5)
8.5 Analysis and Application of Survey Results
202(13)
References
215(2)
Chapter 9 Passing Observations and Surveys on Commercial Vessels 217(12)
9.1 The Principles of Estimation of Fish Concentrations
218(3)
9.2 Surveys of Commercial Resources
221(1)
9.3 Passing Observations
222(1)
9.4 Long-Term Passing Observations
223(2)
9.5 Analysis of Results of Observations
225(2)
References
227(2)
Afterword 229(2)
Author Index 231(4)
Subject Index 235

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