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Aquaculture of green mussel <i>Mytilus viridis</i> L.: Cultivation on ropes from floating rafts

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Title Aquaculture of green mussel Mytilus viridis L.: Cultivation on ropes from floating rafts
 
Creator Qasim, S.Z.
Parulekar, A.H.
Harkantra, S.N.
Ansari, Z.A.
Nair, Ayyappan
 
Description 15-25
M. viridis is a fairly widely distributed species along the coastline of India. In Goa, rich beds of this mussel are found in inshore waters and estuaries. Rope culture of green mussel in Goa has been started in 1974. Mussel seeds are transplanted from the natural bed at Velsao to Dona Paula, about 20 km away, and are allowed to grow on nylon ropes suspended from floating rafts. Environmental conditions both at Velsao and Dona Paula are almost similar. Growth of mussels on ropes is much faster than in natural beds. Mussels grow at a rate of about 8 mm/month on ropes and attain marketable size in approximately 5 months. The most difficult period for mussel culture is the monsoon season, when because of turbulent sea conditions, the rafts require constant attention. Total caloric content of cultured mussels is higher than those from the natural beds. Fouling of mussels on ropes by bryozoans and barnacles is common. Annual production of mussels is of the order of 23 kg mussel meat per rope or approximately 1150 kg of mussel meat per raft. In terms of yield in area, it works out to be 480 tonnes of mussels/ha/year approximately. Cost of production is about Rs. 2500/raft and the value of mussels produced is about Rs.6900. Rope culture thus gives high rate of returns of about 181%. Various constraints and advantages of mussel culture have been indicated and the potential of mussel farming in Goa has been compared with that of the other regions of the world where mussel culture is being practised. For the production of high quality protein food, mussel culture is perhaps the simplest and the easiest form of farming.
 
Date 2016-12-30T04:29:35Z
2016-12-30T04:29:35Z
1977-06
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://nopr.niscair.res.in/handle/123456789/39338
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.06(1) [June 1977]