Applications of GIS to fisheries management
1999
Some 20 per cent of the Earth’s marine area is conducive to a natural biological
productivity rate such that it is attractive to intensive fish production. Thus, most
coastal shelf areas in both tropical and temperate regions, plus the major nearshore upwelling areas, have long been the scenes for the high biomass yields,
which have encouraged fishery activity. More recently, this activity has turned
towards some Arctic shelf waters, which are also proving to be highly
productive. The other 80 per cent of the marine area, which may be considered
as open oceanic, is less biologically productive but it is able to support extensive
fisheries for highly migratory pelagic species such as tuna and shark.
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