The mixed of clean water and sea water, moderate salt ability or it called as brackish water ponds should be made always in an open river water mouth places, mangrove reservoir and mangrove forests. We can make a hedge by not digging the mud, not building the shore, in a particular water spread saltwater river nearly with a deep part of obstruction we can bend around and make a hedge for the growth of prawns. In this hedge it will change accordingly due to the ability of water in a brackish water pond and the mixing of clean water. We can see the unity and diversity in brackish water ponds and breeding hedge (or) pen in below
BRACKISH
WATER PONDS
|
BREEDING
HEDGE
|
1.
According to the salt water
ability this pond water is saltiness
|
Breeding hedge will also takes
the water
|
2.
However in brackish water pond
the change of salt water ability will be in dimension.
|
The pen in water however changes the salt ability
will change like that
|
3.
In one way brackish water ponds
is an artificial method for breeding species. The changes that happening over
there will be different from natural
|
The animals that are belongs to
here will be incarcerated by natural situation except there is no changes in
any situation
|
4. To dig the pond
investment cost will be more
|
Investment cost will be less
|
5. There is
no need to spend much more on the maintenance of ponds.
|
The management cost is present.
The pen does not stand for more than 3 years so we have to make another pen.
|
6. In the less of tidal
amplitude part if we make the pond it will create the more cost for
irrigation.
|
In the less of up and down
parts the breeding hedge will be necessary
|
7. We can irrigate and filter
the water whenever we need but the flow does not happen.
|
Always there is an exist of water flow
|
8. We can keep the quality of
water.
|
The water will be in quality
|
9. By fertilizer we can make it
fertility.
|
There is no chance of
fertilizer
|
10. We can have the
supplemental feeding
|
We can have the supplemental feeding
|
11. There is no impact on crab
species
|
There is a cutting of grown web
by crab species so we have to concentrate on management.
|
12. Partly we cannot increase
the density of prawns
|
The density of place can be
more
|
13.This is widely growing
method
|
This is the new method
|
14. In our region is partly
convenient for digging the pond and growing prawns
|
The growth of prawns is convenient in breeding
hedge
|
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