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