Satellite remote sensing is beginning to play an important role in locating potential fishing zones and managing fishery resources by measuring ocean parameters like sea temperature and color from space. Changes in ocean conditions influence fish stocks, so remote sensing provides information on ocean variations and their effects on fish distribution. In India, satellite data on sea surface temperature and chlorophyll are used by INCOIS to create maps of potential fishing zones distributed weekly to fishermen. Remote sensing allows fishermen to reduce scouting time and fuel use locating fishing zones, and provides data for fishery management decisions and assessing fish stocks.

2. REMOTE SENSING
INTRODUCTION:
Satellite remote sensing is beginning to play a very important
role for locating potential fishing zone(PFZ) and management
of fishery resources by providing synoptic measurements of
oceanic parameters such as sea surface temperature and
colour . It is well known that changes in ocean condition
greatly influence the natural fluctuation of fish stocks . Hence
the information on variations in ocean conditions is necessary
to understand the influence they cause on fish stocks and
their distribution . This knowledge will immensely help in
formulating the best fishery management and developing
efficient harvesting strategies.

3. EFFECTS ON FISHERY
1.Many of the physical features in the ocean
such as changes in temperature, wind speed,
upwelling and eddies directly affect the
productivity of the oceans.
2.In particular areas in the oceans may become
richer in nutrients and phytoplankton
production.
3.The food chain is usually observed in these
areas of high productivity.

4. SATELLITE USE IN INDIA
In India ,SST data generated using NOAA-
AVHRR satellite data and chlorophyll data
derived from IRS-P4 are used by the Indian
National Centre for Ocean Information
Services(INCOIS),Ministry of Earth Sciences ,
Govt. of India to make maps of PFZ , which
are freely disseminated thrice a week
throughout coastal India by fax, telephone,
internet, newspaper and radio broadcasts for
the benefit of fishing community.

5. REMOTE SENSING IN MARINE FISHERIES

6. APPLICATION OF GEOGRAPHIC INFORMATION
SYSTEM(GIS) IN FISHERIES:
1.Marine water conditions and habitats.
2.Natural marine resources.
3.Fisheries management- resource allocation
and regulation.
4.Fishing efforts and catches.
5.Marketing of fishery products.
6.Mariculture.
7.Coastal zone management.

7. ADVANTAGES OF REMOTE SENSING:
1.It helps the fishermen to reduce the scouting time for
locating potential fishing zones, thus reducing total
fishing time and intake of fuel.
2.This knowledge gathered through remote sensing
could be used to provide best possible advice in
making fishery management decisions and to develop
efficient harvesting strategies for fishery resources.
3.It is the best way of understanding primary productivity
of ocean at a given time. This data can be used for
assessment of fish stocks.
4.The satellite data could give information on weather
ensuring greater safety for the men out at sea.

8. SATELLITE USE IN MARINE
FISHERIES