FT Vol.56(3)

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    Optimization of processing conditions of hand operated descaling machine for various fish
    (Society of Fisheries Technologists (India), Cochin, 2019) Delfiya, D.S.A.; Murali, S.; Alfiya, P.V.; Zynudheen, A.A.; Gokulan, C.R.; Samuel, M.P.
    ICAR-Central Institute of Fisheries Technology has developed a hand operated descaling machine of 3 kg capacity for easy and fast removal of scales in different fishes. This study was to optimize the loading capacity and duration of operation of hand operated descaling machine for various fishes. Effect of loading capacity and duration of operation on descaling efficiency was analysed using response surface methodology. Maximum descaling efficiency of 92.45, 77.24 and 85.78% in sardine, threadfin bream and tilapia, respectively were obtained at 2 kg loading and 9 min duration of operation. Also the highest descaling efficiency of 81.39% was observed at 1 kg loading and 9 min operation for pearl spot. The obtained optimum process variables will be helpful for the small scale fish vendors to use hand operated low cost, efficient descaling machine for quick and hygienic descaling process.
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    Indigenous resource management system in selected backwater stake net fisheries of Kerala
    (Society of Fisheries Technologists (India), Cochin, 2019) Thomas, S.N.; Archana, G.; Edwin, L.
    Application of indigenous knowledge is common among the traditional fishers operating indigenous fishing systems. Stake net is an important gear operated along the backwaters of Kerala. Stake net fishers follow many traditions in the fabrication, operation and maintenance of the fishing unit. Lunar periodicity based fishing operation and paadu systems envisage resource conservation through control of fishing effort. The fishing canoe and the gear are protected against biodegradation using ecofriendly natural protective coatings thereby protecting the biota from the ill-effects of synthetic dyes and chemical preservatives.