5" day - Central Institute of Brackishwater Aquaculture

Iluring the pa two deudcs brkiimca qwulture lus become the frrtea
growing foobproducing sector md is an incrclsingly imponurt contributor to nuional
aanomic dcvclopmnf glob1 food supply, food security and nutrition. The water and
soil quality mrnrpmmt ue cherrfm key ham for regulating success in bnckishwater
rhrimp/fish fuming. Lntmcticms between roil md water that inflwnce water qualib in
pa& mud not k &?nod, bur poor mil condition in ponds can impair survival md
growth of lpurub cpech. Some mils may tun wbrimbls popanlea llke potatid
acid sulphm acidity, high orpurlc matter commt w m s i w pornsit). On the other
hand, e m if the site is 0006 problems may sill crop up by the large quantlt) of inputs
like W feed fmiliLm which lead to excessive ph)loplmkton production, low dissolved
oxygen, high ammonia. poor bottom soil condition and other pmbkms. Out hreak of
d i w in shrimp culaue system is relared to the environmental faclon such as
docaioruion of wMu md roil quality. Most of there problems can k avoided through
adoption ofknsr fmugemant prrctiscr (BMPs) such u site selection, pond pmp.ntion.
limin~ modem socking a. Howcwr, effectiveness of these BMR depends on takino
into cowideraion the high dew of variability between shrimp farms, their roil types.
and source water. ecosystems in which the farms arc loafed and seasonal var~ations
The aqua farming =tor cannot k considered in isolation and other activities in
the costal uos impact rhc environment which may in turn affect the culture opcrntlons.
lo fast pwrh hu invited m e of the environmental inuer like wliniwtion of
apicultunl lands and drinking water resources and conflicts with other users. The aqur
farms discharge walcr is the most significant of all faclon that conaibutc?, to the
degradation of environment and causes 'self pollution' with in the system due to
intensification of technolog). Conversely the aquatic environment is ultimate sink for all
chemicals and pollutants such as heavy mctnls and pesticides that pox scririus
mvimnmental hazards becaue of their perslstcncc and toxicit). Gmd site selection for
shrimp farming operations requires planning for managing entire ecosystem to avoid
pmblemr when the numtan of pomh e d the wing capacity of the syrtom. All the
above irrucs underline the impow of envimnmental management in bnckishwaur
aquaculnm.
As a parr of the transfer of technology programme. the Central lnslitutc of
Brackishwarn Aquaculture (CIBA) is organizing this training course on 'Advanced
Technologies for Ihc Management of Soil and Water Environment in Brack~shwater
Aqureultun" sponsored by National Firheries Dcvelopment Board WFDB). Hydembad.
The mining program coven both the buic and dvanccd topics such u suitnbility of
soils for bmckirhwua rquuulnm, water and soil qlvllty mm@unefif during Ihc prcsdiq
d c u b period paicidcs and heavy metal hazards in source waters, discharge
watm acltmen~ quatic biwemediation. BMPs, environmental impact assessment (HA)
and environmental monitoring programme (EMP) protocols and pmcticals on analysis of
soil and war p s m .
It givea me &real pkuurc to record my sin- thanlo to National Fisheries
Developman BarQ Hydmbad fw sponrwing this training programme. My
rppasiabru are to dl the W t y mmko of the
bringing out this mining manual.
Chcnnli
I' Sepcmbcr, 2009 Director, Cmml Institute of Brackishwater Aquaculture