• Fabrication of a water sampler for use in aquaculture

      Saha, C.; Bose, A.N. (1988)
      Details are given of the construction of a water sampler for use in aquaculture work. The equipment is 3m long, light and easy to fabricate and operate in aquaculture ponds.
    • Factors controlling drained weight in canned prawn

      Varma, P.R.G.; Chaudhury, D.R.; Pillai, V.K. (1969)
      The paper gives an account of factors controlling the drained weight in canned prawn. The most important among them are concentration of brine used for blanching and blanching time which are found to be fixed and specific for different sizes of prawn irrespective of the quality of the material used. Other factors such as, acidity of brine used for filling the can, volume of brine, time of sterilization and time of cooling the blanched meat are also to some extent found responsible for fluctuations in drained weight.
    • Factors controlling sterility in canned prawn

      Chaudhuri, D.R.; Gopalakrishna Iyer, T.S.; Pillai, V.K. (1970)
      Probable sources of contamination of raw, blanched and processed meat at various stages of handling and methods for their rectification have been described in the paper. Inter-relationship between absolute sterility and commercial sterility with particular reference to the sanitation of the factory has been discussed.
    • Factors influencing colour production from the sugar medium used for the rapid approximation of bacterial counts in fishery products

      Mathen, C.; Choudhury, D.R. (1965)
      Results of the studies carried out to elucidate the factors influencing colour production from the sugar medium used for the rapid approximation of bacterial counts in fishery products are reported. The effect of particle size, trace elements, salt soluble protein and non-protein fractions, rate of multiplication of bacteria, in the medium,surface bacteria and the rate of colour production by individual strains of bacteria were studied. It is observed that the best results are obtained when a sea-water homogenate is used.
    • Faecal indicator organisms in frozen prawn products. Pt. 1. Incidence and general distribution

      Lekshmy, A.; Pillai, V.K. (1964)
      A general survey carried out on several brands of frozen prawn products has shown that along with the standard plate count (SPC), the numbers of pathogenic organisms like Escherichia coli, enterococci and coagulase positive staphylococci have also to be taken into consideration for the evaluation of the quality of these products. No correlation could be established between the total plate count and the number of E. coli, enterococci or staphylococci. Enumeration of enterococci, however, is advocated as a better index of faecal contamination of the products than E. coli.
    • Faecal indicator organisms in frozen prawn products. Pt. 2. Survival of the organisms during freezing and frozen storage

      Lekshmy, A. (1964)
      The rate of survival of different types of faecal indicator organisms like Escherichia coli, enterococci etc. during freezing and frozen storage has been studied. Peeled and deveined prawns inoculated with a mixed culture of the above organisms were subjected to freezing and storage at -10̊F and examined for over four months.
    • Faecal streptococci in fresh frozen shrimp

      Gopalakrishna Iyer, T.S.; Mathew, A.; Joseph, A.C.; Krishna Rao, K.; Pillai, V.K. (1973)
      Present limit of faecal streptococci as 100/g in fresh frozen shrimp was found to be too strict a standard commercially prepared products. Statistical analysis of the data collected indicates that fixing the maximum permissible limit as 1000/g will be a more workable proposition.
    • Fat and water contents of the muscle and gonad of Otolithus argenteus in relation to gonad growth

      Vinayak, V.; Neelakantan, B. (1980)
      Fat and water contents of the muscles and gonads in relation to gonad growth in Otolithus argentes from Karwar are reported. Water content showed an inverse relationship to lipid in both the sexes. Variation in somatic body weight was found associated with the fluctuations in lipid contents.
    • Fat and water distribution patterns in the flesh of the common cat-fish Wallago attu (Bl. & Schn.)

      Jafri, A.K. (1973)
      The quantitative distributional pattern of fat and water has been studied in the flesh of the various zones corresponding to the dorsal and ventral regions of the body of a common cat-fish, Wallago attu. The ventral aspect of the body showed more accumulation of fat than the dorsal aspect. The fat content in the ventral region also exhibited an increase from the anterior to the posterior zones. In the dorsal region, however, the back portion of the body, behind the dorsal fin, generally possessed low fat content. On an average, the highest fat accumulation was observed in the caudal peduncle region. The distribution of water followed an almost opposite pattern of distribution, indicating an inverse relationship with fat.
    • Fatty acid composition of Anchoviella and Thrissocleus

      Gopakumar, K.; Rajendranathan Nair, M. (1975)
      A study was made to elucidate fatty acid composition of Anchoviella and Thrissocleus, and bring to light similarities with other clupeids. The results are tabulated. The polyunsaturated fatty acids, eicosapentaenoic acid and docosahexaenoic acid, are the 2 major fatty acids in the phospholipid fraction of both fish. Myristic, palmitic and stearic acids are the major components of the nonphosphorylated fraction.
    • Fatty acid composition of three species of freshwater fishes

      Gopakumar, K. (1975)
      Fatty acid composition of freshwater fish tilapia, (Tilapia mosambica), barbus (Barbus carnaticus) and Varal (Ophicephalus) is determined by gas-liquid chromatography. Varal contained the highest amount of C sub(20:5) acid compared to other 2 spp. Of the odd-numbered fatty acids C sub(17) was the predominant fatty acid present. Palmitic acid was found to have a lower level in these fish compared to marine fish. Barbus recorded unusually high percentage of 23.3% of C sub(18:2) acid.
    • Filleting of fish and utilization of filleting waste

      Perigreen, P.A.; Nair, A.L.; Prabhu, P.V. (1979)
      A manual method of filleting of different varieties of fishes yields of skin-on and skinless fillets that can be obtained from them, levels of recovery of picked meat from the filleting waste and the utilization of the latter for the production of fish meal have been reported in this communication. The compositions of meal thus prepared are also given.
    • Filtration in some tropical intertidal bivalves exposed to mercury and cadmium mixtures

      Mohan, C.V.; Menon, N.R.; Gupta, T.R.C. (1986)
      Three species of intertidal filter feeding bivalves (Modiolus carvalhoi, Modiolus sp. and Donax spiculum) exposed to mercury and cadmium filtered significantly less volume of water under individual metal and metal mixture stress. Mercury and cadmium in mixtures interacted additively and more than additively (Synergism) in depressing the filtration rate of the bivalves.
    • Fish farm technology. 1 - Brackishwater fish culture based on "aquafeed"

      Divakaran, O.; Balakrishnan Nair, N. (1984)
      A method has been evolved to enhance the production of natural feed in brackish water fish farms by providing substrates for bio-growth ('aquafeed' production) which is a biomass complex consisting of sedentary and associated organisms of plant and animal species. The seasonal fluctuations of the aquafeed production over different substrates ranged as: 787-1830g/coconut leaf (6m²)/45 days, 16.0-072.9g/glass panel (2x10x10cm²)/30 days, 52-230g/nylon mat (2x25x25cm²)/30 days and 18.6-123.1g/wooden block (6x10x10cm²)/30 days. The average dry weight composition of the major components of aquafeed obtained in the present study was sand-silt-clay 40%, protein 22%, carbohydrate (water soluble) 1.8% and fat 3.35% (water content 85%). Mugil cephalus of 1.85 cm reared in a 0.01ha pond and fed on aquafeed attained a size of 23 cm length and 146.73g weight during one year. Survival rate was 54% at a density of 1000/ha. Salinity and temperature of the pond during the culture period ranged between 1.4 and 32.8‰ and 28.1 and 36.5°C respectively.
    • Fish muscle structural proteins

      Warrier, S.B.K.; Gore, M.S.; Kumta, U.S. (1975)
      Based on the differences in their physico-chemical properties proteins are broadly categorised as sarcoplasmic or fibrillar. The properties are important in fish technology. The authors review some of these physico-chemical properties of the proteins which have distinguished themselves as 'structural' or 'textural' proteins. As denaturation in these proteins caused by a variety of factors manifests itself in terms in the quality attributes of the product, relevant mechanisms have been particularly highlighted.
    • Fish sauce from two species of unexploited deep sea fish Peristedion adeni and Peristedion weberi

      Lekshmy Nair, A.; Prabhu, P.V.; Shenoy, A.V. (1989)
      Two species of unexploited deep sea fish Peristedion adeni and Peristedion weberi caught from the Exclusive Economic Zone of India were subjected to fermentation at ambient temperature (30 ± 2°C) in the presence of salt in 4:1 ratio. Periodical analysis of the fermented product was carried out up to one year. The sauces had brownish yellow colour and conformed to special grade of the standards prescribed by the Food and Drug Administration. Further solubilization of protein after 9 month's maturation was not appreciable.
    • Fisheries hydrography

      Qasim, S.Z. (1965)
      The article is based on a talk given before a meeting of the Society of Fisheries Technologists, India.
    • Fishery development and administration in India

      Chidambaram, K. (1964)
      This paper deals with the importance of fisheries administration in effective planning and successful execution of fisheries development programmes. The great diversity in the organisation of fisheries departments in the states of India is described.
    • Fishery of mud crab, Scylla serrata (Forskal) from Karwar waters

      Prasad, P.N.; Neelakantan, B. (1989)
      Catch data of Scylla serrata obtained in different gears from Karwar region during December 1983 — November 1984 indicated a sum of 9608 kg of landings of crabs. Majority of the crabs (89.57%) was found to be caught in backwaters by line fishing and cast nets. A considerable (10.43%) quantity of catch was also contributed by gill nets and shore-seines from inshore waters. A maximum of 1207 kg of crabs were landed in December, 1983. The size structure and sex-ratio of S. serrata varied with gear type and period.
    • Fishing experiments with frame nets in Hirakud reservoir, Orissa

      Naidu, R.M.; George, V.C. (1972)
      Experiments conducted with frame nets of sizes 1.0 m, 1.25 m1.5 m, 1.75 m and 2.0 m in Hirakud reservoir showed that the net with 1.75 m frame gave the highest catches.