This document describes the abundance and distribution results
on sardine during the acoustics surveys carried out during spring
1992 and 1993 in the spanish atlantic continental shelf.
In 1992 the estimated biomass was the lowest from 1983 with only
45 thousands tonnes; the assessed biomass in 1993 was 126
thousand tonnes which is similar than those estimated in 1991.
The 1983 and 1987 year classes are still important and 1991 year
classe seems to be also very important.
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Except where otherwise noted, this item's license is described as Atribución-NoComercial-SinDerivadas 3.0 España