Estudos Especiais do CRE


As human populations have grown and become more industrialised over the last two centuries the marine environment has been subjected to increasing levels of underwater noise from anthropogenic sources. Technological advances in vessel propulsion and design, the development of marine industry and the increasing and more diverse anthropogenic use of the marine environment have all resulted in a noisier underwater realm. Increased levels of underwater noise can have significant effects on marine biodiversity and have been shown to cause physical injury, alter animal behaviour and have more subtle physiological effects on marine organisms. The rising levels of anthropogenically enhanced background or ambient noise can also mask important acoustic cues and signals between conspecific marine fauna. Detecting and emitting underwater sound is extremely important for marine mammals and many fish but also for some invertebrates.

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