Marine Mammal Populations and Ocean Noise - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Marine Mammal Populations and Ocean Noise write by National Research Council. This book was released on 2005-02-24. Marine Mammal Populations and Ocean Noise available in PDF, EPUB and Kindle. Attention has been drawn to the subject of how ocean noise affects marine mammals by a series of marine mammal strandings, lawsuits, and legislative hearings, and most recently, the report from the U.S. Commission on Ocean Policy. One way to assess the impact of ocean noise is to consider whether it causes changes in animal behavior that are "biologically significant," that is, those that affect an animal's ability to grow, survive, and reproduce. This report offers a conceptual model designed to clarify which marine mammal behaviors are biologically significant for conservation purposes. The report is intended to help scientists and policymakers interpret provisions of the federal Marine Mammal Protection Act.
Marine Mammal Populations and Ocean Noise. Determining When Noise Causes Biologically Significant Effects
Marine Mammal Populations and Ocean Noise. Determining When Noise Causes Biologically Significant Effects - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Marine Mammal Populations and Ocean Noise. Determining When Noise Causes Biologically Significant Effects write by . This book was released on 2005. Marine Mammal Populations and Ocean Noise. Determining When Noise Causes Biologically Significant Effects available in PDF, EPUB and Kindle. In its 2000 report, Marine Mammals and Low-frequency Sound, the National Research Council recommended that the Marine Mammal Protection Act definition of Level B harassment should be limited to meaningful disruption of biologically significant activities that could affect demographically important variables such as reproduction and longevity. Recognizing that the term "biologically significant" is increasingly used in resource management and conservation plans, this study will further describe the scientific basis of the term in the context of marine mammal conservation and management related to ocean noise. Based on input from a scientific workshop, consideration of the relevant literature, and other sources, the committee will produce a brief report that reviews and characterizes the current scientific understanding of when animal behavior modifications induced by transient and non-transient ocean acoustic sources, individually or cumulatively affect individuals in ways that have negative consequences for populations.
Ocean Noise and Marine Mammals
Ocean Noise and Marine Mammals - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Ocean Noise and Marine Mammals write by National Research Council. This book was released on 2003-05-22. Ocean Noise and Marine Mammals available in PDF, EPUB and Kindle. For the 119 species of marine mammals, as well as for some other aquatic animals, sound is the primary means of learning about the environment and of communicating, navigating, and foraging. The possibility that human-generated noise could harm marine mammals or significantly interfere with their normal activities is an issue of increasing concern. Noise and its potential impacts have been regulated since the passage of the Marine Mammal Protection Act of 1972. Public awareness of the issue escalated in 1990s when researchers began using high-intensity sound to measure ocean climate changes. More recently, the stranding of beaked whales in proximity to Navy sonar use has again put the issue in the spotlight. Ocean Noise and Marine Mammals reviews sources of noise in the ocean environment, what is known of the responses of marine mammals to acoustic disturbance, and what models exist for describing ocean noise and marine mammal responses. Recommendations are made for future data gathering efforts, studies of marine mammal behavior and physiology, and modeling efforts necessary to determine what the long- and short-term impacts of ocean noise on marine mammals.
Marine Mammal Populations and Ocean Noise. Determining When Noise Causes Biologically Significant Effects
Marine Mammal Populations and Ocean Noise. Determining When Noise Causes Biologically Significant Effects - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Marine Mammal Populations and Ocean Noise. Determining When Noise Causes Biologically Significant Effects write by . This book was released on 2005. Marine Mammal Populations and Ocean Noise. Determining When Noise Causes Biologically Significant Effects available in PDF, EPUB and Kindle. In its 2000 report, Marine Mammals and Low-frequency Sound, the National Research Council recommended that the Marine Mammal Protection Act definition of Level B harassment should be limited to meaningful disruption of biologically significant activities that could affect demographically important variables such as reproduction and longevity. Recognizing that the term "biologically significant" is increasingly used in resource management and conservation plans, this study will further describe the scientific basis of the term in the context of marine mammal conservation and management related to ocean noise. Based on input from a scientific workshop, consideration of the relevant literature, and other sources, the committee will produce a brief report that reviews and characterizes the current scientific understanding of when animal behavior modifications induced by transient and non-transient ocean acoustic sources, individually or cumulatively affect individuals in ways that have negative consequences for populations.
Marine Mammals and Noise
Marine Mammals and Noise - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Marine Mammals and Noise write by W. John Richardson. This book was released on 2013-10-22. Marine Mammals and Noise available in PDF, EPUB and Kindle. Many 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 discusses, 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.
