Cage culture of Epinephelus malabaricus (Bloch and Scheneider, 1801) in Mandapam Coastal waters (Southeast Coast of India)
2011
Haq, M.A Badhul | Srinivasan, M. | Vignesh, R. | Shalini, R. | Meetel, K.H Brajamani
Of the various culture systems, cage culture is very important and interesting like pond and pen cultures. Cage culture is considered as the proper technology to maximize the sustainable biomass production in a unit area. The cage culture accounts for a very high production of the present day production of many fishes and crustaceans. Thus in this study the groupers were cage cultured for a period of six months in Gulf of Mannar coastal waters and the parameters like body weight and length, biochemical studies and economic analysis were done. The results were showed potential. The average length and weight yield of E. malabaricus harvested at the end of the culture period of 184 days were found to be 3l9.lmm and 332.8mm length and 646.5gm to 740.5gm weight respectively. The total survival rate of all experimental compartments was 88.66%. The muscle region showed the maximum protein content of 81.6% in compartment ~, and minimum content of 14.4% and 24% in compartment As&A3. The maximum carbohydrate level was recorded in compartment As (7.5%) and the minimum (2.90% & 3.42%) in compartment Al andA2• The maximum lipid content of 4.75% was recorded in compartment As, and minimum of 2.25% & 2.75% in the Al compartment. The total net income earned was 2849.97 INR The results are discussed in detail in the text. The entry of other invasive macro and micro organisms posed a drawback in the culture of this type of experiments which has to be minimized. For a country like India with enormous population, cage culture is most needed intensively in order to meet the future food demands and also to improve the aquaculture business.
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