Eversince the Department of Ocean Development took up the dissemination of
Potential Fishing Zone (PFZ) information to the coastal fishermen, the necessity of providing
additional assistance to the fishermen in locating the PFZs, has been immensely felt.
Without appropriate marine instrumentation for navigation in the sea and finding the fish
shoals, it will not be possible for the fishermen to judge the distance from the shore and also
to locate the fishing ground. The most important instruments required for this purpose are
Global Positioning System(GPS) Navigator and a Fish Finder. The mechanised fishing
boats invariably are equipped with a rudimentary navigation tool viz. the marine compass.
Lack of more sophisticated and accurate navigational aids leads to unwarranted sailing,
thereby loosing time and precious fuel. Using the PFZ data, with GPS receiver, the
fishermen could steer themselves to the fishing ground and back home safely and
accurately. Another useful fishing aid is the electronic fish finder. It provides information
about the presence of fish, after the fishermen have reached the fishing zone. This will avoid
any ambiguous decision on where to fish.