Acoustics is the science which deals with
sound waves and wave propagation in a medium. Thus, marine acoustics is the
study of sound waves and penjalarannya (propagation) in the medium of seawater
(occurring in the water column). Marine acoustics is a marine field to detecttargets in the water column and base peairan using sound waves. 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.
Acoustic method used to obtain estimation of
fish can use basic methods such echocounting and echo integration. Echo
counting can compute density fish when the sampled volume is low, value echo of
a single fish can be easily separated and computing one by one. Echo countingmethod used in rarely suspect the abundance of fish are clustered. It caused
the density of fish is not homogeneous and high in general, so will cause the
overlap of the echo fish. Echo of the fish that were in seabed has a stronger
signal than with fish located in seabed.
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