1) Passive
acoustic techniques to study sound producing fish species
A wide variety of taxa fish produce
sound. The behavior of Sound production gives an opportunity to study and
analyze various aspects of fish biology, such as habitat selection and spawning
behavior, in a very non-invasive manner. Passive acoustics is an active area of
research called ichthyologic research. However, fish bio-acousticians have not
published their research details in the fisheries literature. Therefore,
fisheries scientists may not be aware of progress being made in this field
completely or the potential uses for acoustic techniques passively. The physiological,
behavioral and evolutionary aspects of sound production by fishes generally
investigate the patterns of research publication on sound production by the fish
and also review the literature which is based on the passive acoustic methods application
to the research of fisheries and finally predicts and tells different ways of
passive acoustic surveys which is being designed to optimize the quality and quantity
of information obtained. Passive acoustic methods can be definitely attractive as
well as alternative or it may supplement to the other traditional fisheries based
on assessment techniques since they are non-invasive, and also can be conducted
at low cost, which covers a large study area at temporal resolution and high spatial.
Questions:
a)
Name the fish which produces sound?
b)
Which are the three aspects of sound production?
c)
Which acoustic method can be attractive?
d)
What can be the Passive acoustic methods?
Sol:
- Taxa
- Physiological, behavioral
and evolutionary aspects.
- Passive acoustic
method.
- non-invasive
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