Abstract
Signal processing with passive acoustic in fisheries and marine science learn the sound frequency range of fish, the intensity of the sound amplitude, sound fluctuations, and shape the sound patterns of the fish. Application of passive acoustic filed for marine fisheries and science detects the sound frequency range of fish, the intensity of the sound amplitude, sound fluctuations, and shape the sound patterns of the fish. Passive acoustic methods used to monitor marine mammals expressed. In general, the signal obtained from the ranimal record sounds is poor and difficult to determine from which directions it is produced, therefore it requires that require amplification/ strengthening. Bioacoustic research is needed to identify the communication language (acoustic communication) in mammals. Bioacoustic detect mammal-produced frequency ranges of sound, amplitude intensity of sound, voice fluctuation, and form sound patterns of mammals. Studying bioacoustic is inseparable from the science of underwater acoustics, biology of mammals, and the study of mammalian behavior. Generally bioacoustic include physiology of mammals organ that produce sound, earnings voice mechanism, sound characteristics of mammals, mammals sound-approaching mechanism, the hearing capacity of fish, and the evolution of the auditory system, and to obtain the frequency range of each sound produced by the dolphins (mammals). Environmental conditions and parameters (salinity and temperature) will greatly affect the value of the intensity and frequency generated from the target, the more extreme the environmental conditions, the lower value of the intensity and frequency generated
Highlights
Acoustics is the science which deals with sound waves and wave propagation in a medium
Marine acoustics is the study of sound waves and penjalarannya in the medium of seawater
With the application of marine acoustics will facilitate researchers to determine the object that is in the water column and seabed in the form of plankton, fish, content of the substrate and the ship foundered [1]
Summary
Acoustics is the science which deals with sound waves and wave propagation in a medium. Marine acoustics is the study of sound waves and penjalarannya (propagation) in the medium of seawater (occurring in the water column). Bioacoustics (Bioacoustics) is a discipline that combines biology and acoustics usually refers to a study on sound production, dispersion through elastic media, and reception in animals, including humans. This involves neurophysiology and anatomy for the production and detection of sound, and the relationship with the acoustic signal dispersion medium. Whales emit short sound called clicks and can determine the location of the object through the echo is formed. Cetaceans can determine the degree of sound like a man, even to the tenth of milliseconds, a higher value than human resources
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