FT Vol.52(2)
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- ItemReproductive Features of Puntius sophore (Hamilton 1822) from Rivers of Tripura, India(Society of Fisheries Technologists (India)Cochin, 2015)Results of the present study provide useful information on the growth, reproductive biology and spawning season of P. sophore to assist biologists in conservation measures and to undertake captive breeding programmes.
- ItemGillnet Selectivity and Fishing Pressure on Sardinella gibbosa (Bleeker, 1849) off Southeast Coast of India(Society of Fisheries Technologists (India)Cochin, 2015)A study was undertaken on the selectivity of small meshed gillnets and fishing pressure on Sardinella gibbosa along Thoothukudi, south east coast of India, with the view to understand the impact of various mesh sizes of gillnets on the fishery of S. gibbosa. The selectivity of gill nets was analysed as described by Sparre &Venema (1992) and the fishing pressure on various length groups was analysed using FiSAT. The study revealed a well-defined selectivity by gillnets with 26, 28 and 30 mm mesh sizes. The fishery was found un-affected by growth overfishing on recruitment overfishing as the commercially significant size group was found to be 110 to 160 mm which was higher than the estimated length at first maturity (100 mm). However, during the months from August to November notable landings of juveniles were reported, which was mainly due to the use of gillnets with 26 mm mesh size. The selectivity parameters such as length at first capture (lb), mean selection length (lc) and the escapement length (ld) for the selected gillnets were found to range from 90 to 107 mm, 115 to 135 mm and 145 to 165 mm respectively. The gillnet selection factor for S. gibbosa was estimated as 4.50. The study revealed the possibility for further increase in fishing effort for S. gibbosa along this coast based on the exploitation ratio (F/Z) of 0.39. The gillnet with 30 mm mesh size was found to be ideal for the commercial exploitation of S. gibbosa along this coast.
- ItemOptimisation of Physical Properties of Ready to Cook Fish Incorporated Noodles using Response Surface Methodology(Central Institute of Fisheries Technology, Cochin, India, 2015)Combination of fish mince and refined wheat flour was optimized for the development of fish incorporated noodles by using response surface methodology. Effect of different level of pink perch (Nemipterus japonicus) mince on physical properties like water absorption index, bulk density, colour values, cooking time, cooking loss, rehydration test, shearing strength and sensory score were evaluated. D-optimal mixture experimental design with 9 runs was formulated to optimize the different levels of fish mince and refined wheat flour. Linear, quadratic and cubic mixture polynomial regression was fitted to the experimental data and appropriate model was selected based on highest goodness of fit values (R2). From the analysis, it was found that water absorption index decreased as the percentage of fish mince increased. Bulk density reduced and found to be maximum for fish incorporated noodles. Lightness reduced as fish concentration was increased, whereas a* and b* values were found to increase. Cooking time increased significantly as the percentage of fish mince increased; whereas, cooking loss was found to decrease on incorporation of fish mince to noodles. Rehydration test values were good for 10 and 15% fish mince incorporated samples. There was a decrease in shearing strength after 10% fish incorporated sample. Based on the desirability function calculation of multiple response samples, 15% fish mince incorporated samples were found most acceptable based on the physical properties and sensory score.
- ItemEmployment Status of Women in the Seafood Processing Sector of Gujarat(Central Institute of Fisheries Technology, Cochin, India, 2015)More than 75% of the workforce in the seafood processing sector in India are women. This study explored the employment status of women in seafood processing sector in Gujarat, which is one of the largest states in terms of number of seafood processing plants and quantity of seafood exports. The male to female ratio in the industry was 1:1.74 and 1:1.66 in the contractual and permanent employment categories respectively. About 63% of the respondents were under 30 years of age and unmarried. The monthly wages of women workers at the floor level was ` 2594/- which is much lower than the minimum wages prescribed by the Gujarat State for unskilled workers which is ` 214.90 day-1. It was observed that the major determinants of women’s employment in the sector were their educational status and wages. The wage of worker in processing sector showed significant positive relationship with age, education and work experience.