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Mohite, A. S.
- Prospects of Genetic Transformation Techniques in Culture of Marine Molluscs in India
Authors
1 College of Fisheries, Ratnagiri-415 629, Maharashtra, IN
Source
Nature Environment and Pollution Technology, Vol 7, No 3 (2008), Pagination: 435-439Abstract
Overfishing is posing a major problem that has dangerously reduced fish and shellfish stocks. People are, therefore, looking at aquaculture to not only increase the fishery production but to improve the declining stocks. Among all the cultivable species of fish and shellfishes, molluscs such as oysters, mussels and clams form a sizable group that can be cultured successfully along the coast of India. Though the molluscs sustain regular and very productive fisheries in our waters, only a few of the mussels, clams and oysters are now generally eaten. But molluscan diversity has shown a declining trend due to the commercial exploitation, pollution and environment hazards that cause death of molluscs and to a lesser magnitude, the professional shell collection from wild. There is an urgent need to conserve the depleting stocks and to improve the quality of these bivalves. It is necessary, therefore, to develop efficient culture methods to increase the production of clams, oysters and mussels to meet high worldwide demand for these organisms. Genetic manipulation in culture promotes faster growth and maturation, increased disease resistance and triploidy. Some of the techniques are discussed in the current paper.Keywords
Genetic Transformation, Electroporation, Lipofection, Microinjection, Transfection, Bivalves, Molluscs, Clams, Oysters, Mussels.Full Text
- Mosquito dol Nets of Ratnagiri, Maharashtra
Authors
1 Department of Fisheries Engineering, College of Fisheries (Dr. B.S.K.K.V.), Shirgaon, Ratnagiri (M.S.), IN
Source
The Asian Journal of Animal Science, Vol 11, No 2 (2016), Pagination: 121-125Abstract
Dol net fishing is one of the popular fishing methods along the west coast of India. However, there are regional variations in their design, construction and operation. The present study deals with the general characteristics and design of mosquito dol nets operated in creeks of Ratnagiri, Maharashtra. The nets were made of webbing of polyethylene (PE) multifilament of 1.5 mm diameter with specifications of 210DX5X3 and having mesh size ranging from 150 to 8 mm. The nets were operated in the creek throughout the year in the depth ranging from 18 to 20 m.Keywords
Design, General Characteristics, Mosquito dol Net, Polyethylene.
- Inboard Diesel Engine Fitted with Gill Netters Operating along Ratnagiri Coast
Authors
1 Department of Fisheries Engineering and Technology, College of Fisheries, Shirgaon, Ratnagiri (M.S.), IN
Source
Engineering and Technology in India, Vol 7, No 1 (2016), Pagination: 53-55Abstract
Mirkarwada is one of the important mechanized fish landing center of Ratnagiri. It is well constructed major fishing harbour, which provides a birthing and fish landing facilities for all kinds of vessels, since 1988-89. Wooden gill netters (4), FRP gill netters (6) fitted with marine diesel engine were operated from Mirkarwada, Ratnagiri. Kirloskar W/C model diesel engines (90%) and of Ashok Leyland AL-370 model diesel engine (10%) were fitted on the gill netters. Overall length (OAL) of gill netters ranged from 28.30 to 38.62 ft, breadth 7.15 to 10.15 ft, depth 2.83 to 5.32 ft, gross tonnage 4.14 to 9.54 tonnes, net tonnage 3.6 to 8.29 tonnes, horse power 10 to 99.27 hp, RPM 500 to 1500 rpm, fuel consumption litres per hour 7 to 12 l/hr, propeller diameter 15 to 29.9 inch and propeller pitch 10 to 19.6 inch.