37 research outputs found
Shrimp farming - a status review
The ever increasing demand for shrimp and the resultant
pressure on the fishery has led to stagnation or fluctuation in the yield
in recent years. Research and development activities carried out by
the Central Marine Fisheries Research Institute aimed at improving
shrimp production, harnessing both capture and culture fisheries, have
yielded wealth of information over the past decades. The finding that
the yield from the traditional practices of shrimp farming prevalent in
India is only a fraction of what is actually possible from such fields
has led to the proposition of the improved technology of selective farming
of only the commercially more important species of shrimps ensuring
improvement in the quality, quantity and profitability. Research
undertaken by the CMFRI on culture system, shrimp seed resources
including hatchery production of seed, shrimp feed formulation and
farming trials have been helpful in developing suitable package of
practices for the sustainable farming of shrimps. Extension machinery
including publications, training programmes at operator, trainer
level and field level extension programmes have been instrumental in
taking the know how to the user community. Assessment of the prospects
and problems of shrimp culture development has also been accomplished
Effects of the Piscicides, Mahua Oil Cake and Croton Seed on the Prawn Culture System
The present research programme envisages a comparative study of the effects of two piscicides of plant origin, viz., mahua oil cake, a derivative from the plant fig Iatifolia and croton seed, a product from the plant Croton tiglium. Although some reports on the effects of mahua oil cake and croton seed on fresh water pond culture systems are available, information on their effect on brackishwater culture systems are rather scanty This was the guiding principle for launching the present study It is hoped that the findings will enable aquaculturists to make use of the piscicides in a more rational and efficient way, and will go a long way towards realising the maximum return from culture systems without hampering the environment. The thesis is presented in seven chapters such as Introduction, Review of literature, Materials and Methods, Results, Discussion, Summary and Bibliograph
Shrimp farming: problems and prospects- Winter School on Recent Advances in Breeding and Larviculture of Marine Finfish and Shellfish
Shrimps accounting for over 20% of the global trade in fish and fishery products and commanding a premium
value have also been the mainstay of Indian marine products export trade. Frozen shrimp continued to be the largest
item exported in terms of value with 59.02% of the total value of export during 2005-06. Around 60% of the volume of
frozen shrimp exported was contributed by aquaculture. Shrimp farming provides direct employment to about 0.3
million people and ancillary units provide employment to 0.6-0.7 million people
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Prawn Farming
The traditional practice of prawn filtration prevalent in
the low-lying brackishwater impoundments including the
'pokkali' fields adjoining the Vembanad Lake in Kerala has
spread to other areas along the northern and southern regions of the State in recent years. Filtration is the method of trapping and holding the juveniles of prawns ascending along with the high tide in brackishwater impoundments and harvesting thern at periodical intervals. As per the 1991 statistics this traditional practice is prevalent in about 12,500 ha spread over the coastal areas of Kannur, Thrissur, Ernakulam, Alleppey, Kottayam and Kollam districts of Kerala state
р┤Ър╡Жр┤ор╡Нр┤ор╡Ар┤ир╡НтАН р┤Хр╡Гр┤╖р┤┐ (Prawn farming)
The traditional practice of prawn filtration prevalent in
the low-lying brackishwater impoundments including the
'pokkali' fields adjoining the Vembanad Lake in Kerala has
spread to other areas along the northern and southern regions of the State in recent years. Filtration is the method of trapping and holding the juveniles of prawns ascending along with the high tide in brackishwater impoundments and harvesting thern at periodical intervals. As per the 1991 statistics this traditional practice is prevalent in about 12,500 ha spread over the coastal areas of Kannur, Thriasur, Ernakulam, Alleppey, Kottayam and Kollam districts of Kerala state
Scientific prawn culture in homesteads тАФ A gainful self employment opportunity for coastal women
The role of women in aquaculture is
relatively a new one which offers great scope for
self-employment and serves as an additional
income to the family. The concept of prawn
culture in homestead water canals is developed
keeping in view the generation of employment,
need of alternative income for coastal population
and maximum utilization of water resources
available for increased production
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рдХреГрдкрдпрд╛ рдкреВрд░рд╛ рд▓реЗрдЦрд╛ рдкрдв
Guide to Prawn farming in Kerala
The development of coastal aquaculture and utilisation of
brackishwater areas for productive purposes are receiving priority
attention in our Fisheries Plan Schemes. Kerala has traditionally
an established crop-cum-flsh culture system in the pokkali
paddy fields of the Ernakulam and adjacent Districts. However,
in general the yield of the pokkali paddy strain is low being
700-1000 kg/ha/harvest. Similarly the production of fish and
prawn from wild stocking through tidal effects from these fields
is also low, yielding hardly about 400-700 kg/ha/season depending
upon the location and other parameters