FT Vol.49(1)
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- ItemDevelopment and Evaluation of an e-Learning Module for Aquaculture Development through ICT Projects: ADDIE Model(Society of Fisheries Technologists (India)Cochin, 2012)The aim of this study was to produce an e-Learning module to assist the users of Village Knowledge Centres (VKCs), Puducherry, which is one of the information centres in coastal areas and to evaluate its suitability as an alternative learning material. The centre was initiated by Information Village Research Project of M.S. Swaminathan Research Foundation, Chennai, India for aquaculture development in coastal areas. The module development and evaluation followed the Analysis, Design, Development, Implementation and Evaluation (ADDIE) model of Instructional System Design. Based on the overall assessment of the VKCs, the asynchronous e-Learning module in Tamil on mud crab fattening, which has been identified as one of the species for diversification in brackishwater aquaculture, was developed by Central Institute of Brackishwater Aquaculture (CIBA). The results revealed that the items related to contents produced, visual design, accessibility and presentation style had good responses. The findings indicated that majority of the respondents had intention to use the module in future (85.3%) and to recommend the module to other learners (100%) who are interested in mud crab fattening. The results also revealed that 84% of the respondents felt that this module could be used as an alternative learning material in mud crab fattening though it still needed improvements in various aspects such as presentation of information with animation effects, user friendliness and interactivity
- ItemOptimization of Packing Conditions for Live Transportation of Anabas testudineus and Channa punctatus(Society of Fisheries Technologists (India) Cochin, 2012)The study reports the optimized conditions for the live transportation of two air breathing fishes viz., Anabas testudineus and Channa punctatus. The requirement of bimodal oxygen, water and commercial oxygen for packing the fishes was determined. The use and suitable dose of MS-222, a standard fish anaesthetic containing ethyl-m-aminobenzoate as an active ingredient during live transportation was also studied. Five specimens of A. testudineus (total weight 72.50 g) required 385.880 and 497.977 mg oxygen from water and air respectively for packing and transportation for 72 h. For five specimens of C. punctatus (total weight: 57.50 g), 377.182 mg aquatic oxygen and 253.669 mg aerial oxygen was required. The optimum dose of MS-222 for A. testudineus (body weight: 14.00 ± 0.5 g) and for C. punctatus (body weight: 11.55 ± 0.65 g) was determined to be 70.0 mg l–1 and 32.50 mg l–1 respectively. The fishes transported in the optimized conditions reached the destination after 72 h without mortality
- ItemAssessment of certain Anthropogenic Interventions and their Impacts along the Indian Coastline(Society of Fisheries Technologists (India)Cochin, 2012)Coastal anthropogenic activities such as sand mining, disposal of untreated or partially treated sewage and industrial effluents from selected centres along Indian coastline and their possible impacts impairing the coastal environment are discussed with the data collected for two year period from eight maritime states of India. Destruction of macro benthos due to large scale sand mining along the Malabar coast was estimated to show an average of 2760 m-2 day-1 equivalent to 10.42 g m-2 day-1 (wet weight) registering maximum during the post monsoon season. Non biodegradable objects such as polythene carry bags, ropes and sachets were recovered in considerable quantities from the beaches (0.145-9.8 g m-2) as well as from the fishing grounds (32-85 g haul-1). The domestic sewage disposed to Visakhapatnam inshore area registered appreciable density of toxic algal species such as Gonyalux fragilis, Peridnium depressum and Porocentrum gracile. Annual average of mercury in soft tissues of crab Portunus sanguinolentus was found in very high levels from Veraval (2.90 ppm) followed by Tuticorin (2.39 ppm), Visakhapatnam (1.83 ppm) and Cochin (1.77 ppm). However, arsenic levels were very high in all the tissue samples collected from Tuticorin, Mandapam, Chennai and Visakhapatnam
- ItemDesign and Technical Specifications of Seer Fish Gillnets of Ratnagiri, Maharashtra(Society of Fisheries Technologists (India)Cochin, 2013)Gillnet is commonly used by the fishermen of Ratnagiri for the capture of seer fish. The present study deals with design, technical specifications and operation of seer fish gillnets (towerchi rapan) operated off Ratnagiri, Maharashtra. The nets were made of webbings of polyamide multifilament of 210d×2×3 to 210d×12×3 having mesh sizes ranging from 70 to 150 mm. Each fleet of net comprised of webbings of different mesh sizes in combination to capture different size groups of fishes, which is not a good practice. The nets were without foot ropes and were operated as surface drift during September to December and column drift during October to May. The seer fish gillnet fishing sector of Ratnagiri comes under the category of ‘small scale drift net fisheries’ as fleet length of majority of the units was below 2500 m.
- ItemBiochemical and microbiological evaluation of tuna Loin processing waste(Society of Fisheries Technologists (India), Cochin, 2012)The study conducted on the yellow fin tuna loin processing showed a sizeable portion as waste in the form of belly flap, off cut meat, off cut mince from the bone, meat mince, blood meat, head, gut, tail, skin and bone. Analysis of proximate composition of processing waste showed protein content ranging between 18.72 and 23.95%. The fat content was highest in belly flap (7.52%) and lowest in head meat (0.23%). The appreciable amounts of protein (18.73 to 23.95%) and low fat content (0.23 to 1.92%) of off-cut mince, bone meat, head meat and blood meat make them suitable for value addition if other quality parameters are within the acceptable level. Microbiological quality of the tuna processing waste was found acceptable whereas histamine content was on the higher side. Implementation of Good Management Practices (GMP) and Hazard Analysis Critical Control Point (HACCP) system right from capture to processing would facilitate effective utilization of tuna processing waste for value addition.