Marine Mammals and NoiseMany marine mammals communicate by emitting sounds that pass through water. Such sounds can be received across great distances and can influence the behavior of these undersea creatures. In the past few decades, the oceans have become increasingly noisy, as underwater sounds from propellers, sonars, and other human activities make it difficult for marine mammals to communicate. This book will discuss, among many other topics, just how well marine mammals hear, how noisy the oceans have become, and what effects these new sounds have on marine mammals. The baseline of ambient noise, the sounds produced by machines and mammals, the sensitivity of marine mammal hearing, and the reactions of marine mammals are also examined. An essential addition to any marine biologist's library, Marine Mammals and Noise will be especially appealing to marine mammalogists, researchers, policy makers and regulators and marine biologists and oceanographers using sound in their research. |
Contents
Acoustic Concepts and Terminology | 15 |
Measurement Procedures | 33 |
Sound Propagation | 59 |
Copyright | |
16 other sections not shown
Other editions - View all
Marine Mammals and Noise W. John Richardson,Charles R. Greene, Jr.,Charles I. Malme,Denis H. Thomson Limited preview - 1995 |
Marine Mammals and Noise W. John Richardson,Charles R. Greene, Jr.,Charles I. Malme,Denis H. Thomson Limited preview - 2013 |
Common terms and phrases
3-octave acoustic airborne aircraft airgun Alaska ambient noise levels animals areas audibility audiograms auditory background noise baleen whales band bandwidth Beaufort Sea behavior belugas boats bottlenose dolphin bowhead whales broadband calls cetaceans clicks depth detectable distance disturbance dredging drilling drillship echolocation effects emit energy estimated explosions Fish Frequency Hz fur seals gray whales harbor seal helicopter human activities humpback whales hydrophone icebreaking in-air killer whale low frequencies low-frequency Malme Mamm man-made noise manatees marine mammals masking measured noise source NTIS numbers ocean octave odontocetes offshore pinnipeds playbacks porpoise pressure pulses quency radius range reactions received level response Richardson right whales ringed seals Schevill Schusterman sea lions sea otters Section seismic shallow water ship sonars source levels species spectrum level sperm whales studies surface Terhune terrestrial mammals threshold tion tones toothed whales types underwater noise underwater sounds vessels Watkins Würsig µPa µPa-m