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Marine Mammal Observer and Passive Acoustic Monitoring Handbook

Marine Mammal Observer and Passive Acoustic Monitoring Handbook

Victoria Todd | Ian Todd | Jane Gardiner | Erica Morrin | Phillip J. Clapham

(2015)

Abstract

Marine Mammal Observer and Passive Acoustic Monitoring Handbook is the ultimate instruction manual for mitigation measures to minimise man-made acoustical and physical disturbances to marine mammals from industrial and defence activities.

Based on more than two decades of offshore experience, and a decade of supplying MMO and PAM services (commercial and scientific), the Handbook is a long-overdue reference guide that seeks to improve standards worldwide for marine operations such as seismic and drilling exploration, wind farm and civil engineering piling, dredging, trenching, rock-dumping, hydrographical surveys, and military/defence exercises. By popular request, this manual will also form an accompaniment to MMO and PAM courses.

The Handbook consolidates all aspects of this discipline into one easily accessible resource, to educate all stakeholders (e.g. MMOs, PAM operators, suppliers, recruitment agencies, clients, contractors, regulators, NGOs, consultants, scientists, academia and media), regardless of experience.

Topics include worldwide legislation, compliance, anthropogenic noise sources and potential effects, training, offshore life, visual and acoustic monitoring (theory and practice), marine mammal distribution, hearing and vocalisations, and report writing.

Advice is provided on implementing sensible and practical mitigation techniques, appropriate technologies, data collection, client and regulator liaison, and project kick-off meetings.

"The Handbook is an indispensable How To guide to the growing and increasingly important occupation of marine mammal monitoring, written with clarity and humor by scientists who have extensive experience in this field." —Dr Phillip J. Clapham, world-renowned cetologist and Director of the Cetacean Assessment and Ecology Program at the National Marine Mammal Laboratory in Seattle.


Most of the information required for MMO and PAM work is distilled into this handbook. It is highly recommended as a training aid for new workers, and as a detailed reference for the experienced. It may also be of interest to offshore crew, environmental consultants, and scientists interested in cetacean acoustics and ocean noise. At present there are no similar handbooks, making this the current “bible” for the industry.


John R. Gibbens

Dr Victoria Todd is a founding Managing Director and Marine Science Consultant at Ocean Science Consulting (OSC), and is a Visiting Scientist at Institute of Sound and Vibration Research (ISVR, Southampton University, UK). She undertook a post doc in commercial aquaculture at Scottish Association for Marine Science (SAMS, UK), planning and directing a comprehensive series of acoustic trials on seal scarers. She holds degrees in the ecology and acoustics of bats (PhD, Leeds University, UK), Oceanography (MSc, scholarship-funded by Woods Hole Oceanographic Institution, WHOI, US, and National Oceanography Centre, UK), and Marine Biology (BSc Hons, Liverpool University, UK). Dr Todd is also a Fellow of the Linnean Society of London. She is experienced in Galápagos fish taxonomy, marine mammal acoustics and marine mammal visual and acoustic surveys worldwide for scientific, commercial and defence contracts. Research interests include bioacoustics, the North Sea rigs-to-reefs concept, harbour porpoise foraging ecology around offshore oil and gas installations, and the effects of anthropogenic noise on marine life, all of which are core research topics at OSC. Dr Todd’s current scientific duties include training, survey design and project management, fieldwork, data analysis, reports, literature reviews, advice documents, Marine Mammal Mitigation Plans or Protocols (MMMPs), and publishing. As the Chief Scientist, she also coordinates most research.

Ian Todd is a founding Managing Director and Marine Science Consultant at OSC, and is undertaking part-time postgraduate research in harbour porpoise (and other marine mammal) interactions with offshore installations and the environment at ISVR (PhD, Southampton University, UK). He holds degrees in Marine Resource, Development & Protection (NERC-funded MSc scholarship, Heriot-Watt University, UK) and Business & Economics (BCom with Honours, Edinburgh University, UK), various diplomas including Marine Engineering (HND, Glasgow College of Nautical Studies, UK), and a Marine Engineering Officer Certificate of Dual Competency (Class IV Steam and Motor Plants, Maritime & Coastguard Agency, UK). As a former Third Engineer Officer (including Health and Safety Officer) in the Merchant Navy, Mr Todd served deep-sea and worldwide with P&O Nedlloyd, then the world’s largest container-shipping company. He organises and supervises visual and acoustic surveys of marine mammals worldwide for scientific, commercial and defence contracts. Mr Todd’s research interests are as per OSC’s core research topics, but include distance sampling, and his current scientific duties are similar to Dr Victoria Todd, but include recruitment, procurement, logistics, finance, brand development, environmental risk assessments, and Health & Safety (H&S).

Erica Morrin is a Marine Science Consultant at OSC. She holds degrees in Marine Mammal Science (MRes, University of St Andrews, UK) and Biology (BSc with Honours, Queen’s University, Canada). Ms Morrin is involved with commercial consultancy, and has served Lead (field position) for visual and acoustic surveys of marine mammals worldwide for scientific and commercial contracts. Ms Morrin’s research interests are as per OSC’s core research topics and her current scientific duties are similar to Ms Gardiner, but include data analysis, and personnel supervision.

Jane Gardiner is a Research Assistant at OSC. She holds degrees in Applied Marine Science (MSc) and Marine Biology (BSc with Honours), both from University of Plymouth. Ms Gardiner is involved with peer-reviewed research publications, and has served Lead (field position) for visual and acoustic surveys of marine mammals worldwide for scientific and commercial contracts. Ms Gardiner’s research interests are as per OSC’s core research topics and her current scientific duties include fieldwork, literature reviews, social media, and H&S.


“...an indispensable How To guide to the growing and increasingly important occupation of marine mammal monitoring, written with clarity and humor by scientists who have extensive experience in this field.”


Phil Clapham, Cetacean Assessment and Ecology Program, Marine Mammal Laboratory

Table of Contents

Section Title Page Action Price
Marine Mammal Observer and Passive Acoustic Monitoring Handbook 2
Contents 9
About the Authors 18
Foreword 20
Acknowledgements 22
List of Acronyms, Units, Prefixes and Symbols 23
List of Acronyms 23
List of Units 31
List of Unit Prefixes 32
List of Symbols 32
Preface 33
Introduction 37
1.1 General Overview 37
1.2 Marine Mammal Classification 38
1.2.1 Cetaceans 39
1.2.2 Pinnipeds 39
1.2.3 Sirenians 40
1.2.4 Marine mustelids 40
1.2.5 Polar bear 41
1.3 Marine Mammal Distribution 41
1.4 Effects of Anthropogenic Sound on Marine Mammals 53
1.4.1 Temporary Threshold Shift and Permanent Threshold Shift 53
1.4.2 Behavioural alterations 54
1.4.3 Stress 55
1.4.4 Masking 55
1.4.5 Strandings 56
1.4.6 Indirect effects 57
1.5 Marine Mammal Hearing 57
1.5.1 Audiograms 57
1.5.2 Hearing ranges 59
1.5.3 Sound exposure criteria 65
Mitigation Measures 69
2.1 Introduction 69
2.2 Protective Legislation 70
2.3 Marine Protected Areas 71
2.4 Project Planning 72
2.5 Control of Operational Procedures 72
2.6 Noise Reduction Methods 73
2.7 Acoustic Mitigation Devices 73
2.8 Active SONAR 73
2.9 Visual and Acoustic Watches 74
2.10 MMO and PAM Operator Requirements 79
2.11 Species for which Mitigation Applies 79
2.12 Exclusion Zones 79
2.13 Pre-Watch 79
2.14 Soft-Starts 80
2.15 Sound Source Testing 80
2.16 Operation Issues and Breaks in Sound Production 80
2.17 Delays and Shut-Downs 80
2.18 Night-Time and Low Visibility Working 81
2.19 Report Writing 81
Sources of Anthropogenic Noise 82
3.1 Introduction 82
3.2 Shipping 83
3.3 Offshore Wind Farms 84
3.4 Tidal Turbines 85
3.5 Dredging 85
3.6 Drilling and Production 87
3.7 Floating Production Storage Offloading 90
3.8 Acoustic Mitigation Devices 90
3.9 Seismic 91
3.10 Pile Driving 93
3.11 SONAR 94
3.12 Whale Finders 95
3.13 Explosions 96
3.14 Electromagnetic 96
Training 98
4.1 Introduction 98
4.2 Background Reading and Scientific Organisations 98
4.3 Becoming a Certified MMO or PAM Operator 100
4.3.1 MMO training 101
4.3.2 PAM Operator 101
4.4 Courses 102
4.4.1 UK and Ireland 102
4.4.2 USA (GoM) 102
4.4.3 Greenland 102
4.4.4 New Zealand 103
4.4.5 Offshore sea survival 103
4.4.5.1 BOSIET 104
4.4.5.2 Minimum Industry Safety Training 104
4.4.5.3 Safe Gulf safety training 105
4.4.6 Offshore medicals 105
4.4.6.1 Netherlands, Norway and UK 106
4.4.6.2 Seafarers’ medicals 106
4.5 Insurance 106
4.6 Curriculum Vitae 107
4.7 Gaining Offshore Experience 107
Offshore Life 108
5.1 Introduction 108
5.2 Contract Award 109
5.3 Pay 111
5.4 Documentation 111
5.5 Vantage Cards 112
5.6 Packing 112
5.7 Personal Protective Equipment 114
5.8 Pre-Project Research 115
5.9 Discretion 115
5.10 Mobilisation 115
5.11 Helicopters 116
5.12 Arrival 117
5.13 Offshore Personnel 118
5.14 Personal Conduct 119
5.15 Phone and Internet 120
5.16 Drugs and Alcohol 121
5.17 Safety Management Systems 121
5.18 T-Card System 123
5.19 Safety Drills 123
5.20 Demobilisation 124
5.21 Vessels 124
5.21.1 Kick-off meeting 124
5.21.2 Dealing with seasickness 124
5.21.3 Baseline surveys 125
5.21.4 Dredging 126
5.21.5 Hydrographical surveys 127
5.21.6 Seismic surveys 128
5.21.7 Piling 133
5.21.8 Military SONAR 134
5.22 Offshore Installations 135
5.22.1 Arrival 135
5.22.2 Layout 135
5.22.3 Kick-off, shift, and rotation meetings 137
5.22.4 Personnel 137
5.22.5 Operational activities 138
5.22.6 Weather 140
5.22.7 General hazards 140
5.22.8 Rig tow 141
5.22.9 Drilling rig and production platform complexes 142
5.22.10 VSP 143
5.22.11 Conductor hammering 143
MMO Theory and Practice 145
6.1 Introduction 145
6.2 Equipment 146
6.2.1 Fold-over clipboard 146
6.2.2 Stationery 147
6.2.3 Digital watch 147
6.2.4 Marine radio 147
6.2.5 Binoculars 147
6.2.6 GPS 148
6.2.7 Cameras 148
6.2.8 Lenses 151
6.2.9 Plumb-bob 152
6.2.10 Field guides 152
6.3 Conducting an MMO Watch 153
6.4 Observation Platform 153
6.5 Recording Position 154
6.5.1 Ranging software 156
6.6 Recording Vessel Movements 156
6.7 Marine Mammal Identification 156
6.7.1 Cetacean identification 157
6.7.2 Pinniped identification 158
6.8 Range Estimation 158
6.9 Bearing Estimation 163
6.10 Photographing Marine Mammals 164
6.11 Data Collection 164
6.11.1 Cover page 165
6.11.2 Effort 165
6.11.3 Operations data 168
6.11.4 Sightings 168
6.12 MMO at Night 170
6.13 Distance Sampling 172
PAM Theory 175
7.1 Introduction 175
7.2 Basics of Sound 176
7.2.1 Frequency 177
7.2.2 Amplitude 178
7.2.3 Sound energy, intensity, and power 179
7.2.4 Sound Pressure Level and the decibel scale 179
7.2.5 Source Level 182
7.2.6 Sound propagation and transmission loss 183
7.2.7 Received Level 186
7.2.8 SONAR equation 186
7.2.9 Sound Exposure Level 187
7.2.10 Duty cycle 187
7.3 Displays of Sound 187
7.3.1 Spectrogram 187
7.3.2 Power spectrum and Power Spectral Density 188
7.3.3 Sound pressure density spectrum 189
7.3.4 Frequency bands 190
7.3.5 Percentile levels 191
7.3.6 Equivalent Continuous Sound Pressure Level 192
7.3.7 Waveform 192
Marine Mammal Vocalisations 194
8.1 Introduction 194
8.2 Marine Mammal Sounds 194
8.2.1 Echolocation and clicks 195
8.2.2 Pulsed sounds 195
8.2.3 Tonal sounds 196
8.2.4 Song 197
8.3 Functions of Sound 197
8.3.1 Hunting and navigation 197
8.3.2 Individual and group recognition 198
8.3.3 Social cohesion and behaviour coordination 199
8.3.4 Mate finding 200
8.3.5 Agonistic and aggressive behaviour 201
8.4 Likelihood of a PAM Detection 202
8.5 Species Identification 203
8.5.1 Physeteridae 226
8.5.1.1 Sperm whale 226
8.5.2 Kogiidae 227
8.5.2.1 Pygmy sperm whale 227
8.5.3 Ziphiidae 227
8.5.3.1 Cuvier’s beaked whale 227
8.5.3.2 Arnoux’s beaked whale 227
8.5.3.3 Baird’s beaked whale 228
8.5.3.4 Longman’s beaked whale 228
8.5.3.5 Northern bottlenose whale 228
8.5.3.6 Gervais’ beaked whale 229
8.5.3.7 Sowerby’s beaked whale 229
8.5.3.8 Hubb’s beaked whale 229
8.5.3.9 Stejneger’s beaked whale 230
8.5.3.10 Blainville’s beaked whale 230
8.5.3.11 Deraniyagala’s beaked whale 231
8.5.4 Pontoporiidae 231
8.5.4.1 Franciscana/La Plata dolphin 231
8.5.5 Monodontidae 231
8.5.5.1 Narwhal 231
8.5.5.2 Beluga 232
8.5.6 Delphinidae 233
8.5.6.1 Commerson’s or Kerguelen Islands dolphin 233
8.5.6.2 Chilean dolphin 234
8.5.6.3 Heaviside’s dolphin 234
8.5.6.4 South Island or Maui’s dolphin/North Island Hector’s dolphin 234
8.5.6.5 Rough-toothed dolphin 234
8.5.6.6 Atlantic humpback dolphin 235
8.5.6.7 Pacific humpback dolphin 235
8.5.6.8 Guiana dolphin 235
8.5.6.9 Common or Black Sea bottlenose dolphin 236
8.5.6.10 Indo-Pacific bottlenose dolphin 237
8.5.6.11 Offshore or coastal pantropical spotted dolphin 237
8.5.6.12 Atlantic spotted dolphin 238
8.5.6.13 Gray’s, eastern, Central American or dwarf spinner dolphin 239
8.5.6.14 Clymene dolphin 239
8.5.6.15 Striped dolphin 240
8.5.6.16 Short-beaked or Black Sea common dolphin 240
8.5.6.17 Long-beaked or Indo-Pacific common dolphin 241
8.5.6.18 Fraser’s dolphin 241
8.5.6.19 White-beaked dolphin 242
8.5.6.20 Atlantic white-sided dolphin 242
8.5.6.21 Pacific white-sided dolphin 243
8.5.6.22 African, Fitzroy ’s , Peruvian/Chilean or New Zealand dusky dolphin 243
8.5.6.23 Peale’s dolphin 244
8.5.6.24 Hourglass dolphin 244
8.5.6.25 Northern right whale dolphin 244
8.5.6.26 Risso’s dolphin 244
8.5.6.27 Melon-headed whale 246
8.5.6.28 Pygmy killer whale 246
8.5.6.29 False killer whale 246
8.5.6.30 Resident or transient killer whale/orca 247
8.5.6.31 North Atlantic, southern or North Pacific long-finned pilot whale 248
8.5.6.32 Short-finned pilot whale 249
8.5.6.33 Irrawaddy dolphin 249
8.5.6.34 Australian snubfin dolphin 250
8.5.7 Phocoenidae 250
8.5.7.1 Indo-Pacific finless porpoise 250
8.5.7.2 East Asian narrow-ridged finless porpoise 250
8.5.7.3 Atlantic, eastern Pacific, Black Sea or western Pacific harbour/common porpoise 250
8.5.7.4 Vaquita 251
8.5.7.5 Dalli-type or Truei-type Dall’s porpoise 252
PAM Practice 253
9.1 Introduction 253
9.2 Existing PAM Technologies 254
9.3 PAM Equipment 255
9.3.1 Tow cable 255
9.3.2 Hydrophones 256
9.3.3 Depth sensor 257
9.3.4 Deck cable 258
9.3.5 Data Acquisition Unit 259
9.3.6 Sound cards 260
9.3.7 Computers 261
9.3.8 Filters and gain 261
9.3.9 GPS 262
9.3.10 Serial-to-USB converter 262
9.3.11 Gender changer 262
9.3.12 Headphones 263
9.3.13 Connectors 263
9.3.14 Oscilloscope 264
9.3.15 Tool kit 265
9.3.16 Tape 265
9.4 PAM Mobilisation 266
9.4.1 Unpacking 266
9.5 Deck Cable Run 268
9.6 PAM Monitoring Station Configuration 270
9.6.1 Data Acquisition Unit 271
9.6.2 DAU connectors 272
9.6.3 Sound cards 273
9.6.4 Computers 275
9.6.5 GPS or NMEA feed 276
9.6.6 Headphones 277
9.7 PAMGuard 277
9.7.1 Starting PAMGuard 277
9.7.2 Configuring PAMGuard: Part I 278
9.7.2.1 Maps and mapping 280
9.7.2.2 Sound processing 280
9.7.2.3 Displays 281
9.7.2.4 Detectors 282
9.7.2.5 Utilities 282
9.7.3 Hydrophone specifications and sampling rate 284
9.7.3.1 Hydrophone frequency range 284
9.7.3.2 Hydrophone sensitivity 284
9.7.3.3 Sampling rate 284
9.7.4 Configuring PAMGuard: Part II 286
9.7.4.1 Maps and mapping 286
9.7.4.2 Sound processing 287
9.7.4.3 Display 290
9.7.4.4 Detectors 291
9.7.4.5 Utilities 292
9.7.4.6 Hydrophone settings 292
9.7.4.7 Filters 294
9.7.5 PAMGuard troubleshooting 296
9.7.5.1 Freezing and/or restarting 297
9.7.5.2 Position fix error 297
9.7.5.3 Erratic cursor 299
9.7.5.4 Spectrogram 300
9.8 Tap (Noise) Test 300
9.9 Earthing 301
9.10 Depth Sensor Calibration 302
9.11 Tow Cable Deployment 304
9.11.1 General deployment 305
9.11.2 Seismic survey vessels 309
9.11.3 Offshore support vessels 312
9.11.4 Vertical deployment 312
9.12 PAM Monitoring 313
9.12.1 Shifts 313
9.12.2 Monitoring methods 314
9.12.3 Data collection 315
9.12.4 Detection metrics 316
9.12.5 Sound playback 317
9.13 PAM Detections During Industrial Operations 317
9.13.1 Localising animals 318
9.13.2 Zero marine mammal detections: possible explanations 320
9.13.3 Non-target noise 322
9.14 Equipment Responsibilities: Routine Housekeeping 325
9.14.1 Retrieval in bad weather 326
9.14.2 Loss of propulsion 326
9.14.3 Wiring, soldering and potting 326
9.15 PAM Demobilisation 327
9.15.1 Handover notes 327
9.15.2 Tow cable 327
9.15.3 Connectors, hydrophones and depth sensors 328
9.15.4 Deck cable removal 330
9.15.5 Cable reels and drums 330
9.15.6 PAM monitoring station 331
9.15.7 Pallet preparation 331
9.15.8 Documentation 332
Report Writing 333
10.1 Introduction 333
10.2 Content 334
10.3 Summary 334
10.4 Introduction 334
10.5 Methodology 335
10.6 Results 336
10.6.1 Sightings 337
10.6.2 Delays or shut-downs 337
10.6.3 Weather 337
10.7 Discussion and Conclusion 338
10.8 Recommendations 338
10.9 Acknowledgements, References and Data Submission 338
Glossary of Terms 339
References 362
Index 407