These acoustic methods are now expected to be useful for the long-range remote sensing of schools of fish as well as for distant ocean bottom characterizations.
Distant ocean bottoms are often explored with other methods too.
( z1 explore :ARG1 ( z2 bottom :mod ( z3 ocean ) :ARG1-of ( z4 distant ) ) :frequency ( z5 often ) :mod ( z6 too ) :instrument ( z7 method :mod ( z8 other ) ) )