please change the last slide.topics are fisheries,aquaculture,etc...

4.  Fish Production
refers to the output
of fish by humans
both from capture
fisheries and
aquaculture.

6. Fisheries-a place where fish are
reared for commercial
purposes.
A fishing ground or area where
fish are caught.
The occupation or industry of
catching or rearing fish.

9.  Aquaculture- also known as
aqua farming, is the farming of
aquatic organisms such as fish,
crustaceans, mollusks and
aquatic
plants. Aquaculture involves
cultivating freshwater and
saltwater populations under
controlled conditions, and can
be contrasted with commercial
fishing, which is the harvesting
of wild fish.

11. Where must the
fishing be done?

12. Fishing can be
done both in
marine fisheries
and inland
fisheries.

14.  Marine fisheries – India’s marine fisheries
include 7500 of coast line and the deep seas
beyond it. Popular marine fish variety’s
include pomfret, mackerel, tuna, sardines and
bombay duck. Yields are increased by
locating large schools of fish in the open sea
using satellites and echo sounders. some
marine of high economic value are also
farmed in sea water this includes finned fishes
like mullets , bhekti, and pearl spots, shellfish
such as prawns, mussels and oyeasters as
well as seaweeds, oysters are also cultivated
for the pearl they make.

16.  Inland fisheries-fresh water resources
include canals, ponds, reservoirs and
rivers. Brackish water resources. where
seawater and freshwater mix together,
such as estuaries and lagoons are also
important fish reservoirs. while capture
fishing is also done in such inland water
bodies , where the yield is not that high.
Most fish production in from these
resources is through aquaculture.

19.  Problem with such composite fish culture is
that many of this fish breed only during
monsoon. Even if fish seed is collected
from the wild , it can be mixed up with that of
other species as well. So a major problem in
fish farming is the lack of availability of good
quality of seed. To overcome this problem,
ways have now been worked out to breed
these fish I ponds using hormonal
stimulation. This has ensured the supply of
pure fish seed in desired quantities.

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