• 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.
    • A winding machine for "Sekiyama"

      Vijayan Unni, K. (1964)
      During 1964, the offshore fishing station, Cochin, took up a programme of exploratory tuna fishing in the deeper waters off Cochin. A side trawler was converted into a tuna long liner for this purpose.
    • 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.
    • Studies on the biochemical composition of some freshwater fishes. Pt. 1. Muscle

      Jafri, A.K.; Khawaja, D.K.; Qasim, S.Z. (1964)
      Twenty five different species belonging to 16 genera of freshwater fishes were analysed for protein, fat, moisture, ash, carbohydrate, phosphorus, calcium and total iron content in their muscle. Calorific value for protein, fat and carbohydrate fractions and total calories for each species were also calculated.
    • The protein, peptide and free amino-acid contents of some species of Gracilaria from south-east coast of India

      Lewis, E.J. (1964)
      Four species of Gracilaria are investigated for their free amino-acid contents, as well as amino-acid constituents in the proteins and the peptides, using quantitative paper chromatographic technique. Amino-acid constituents of different species of Gracilaria differ only in amount, while free amino-acids and the amino-acids in the peptides vary both in quality and quantity. A number of amino-acids recorded as protein constituents have even escaped detection in the peptides, while in the free state they occur either in all the species or in some only except homocystine. Moreover, some amino-acids occur exclusively in the free state.
    • Studies on the use of alginates in frozen fishery products

      Pillai, V.K. (1964)
      Results of preliminary studies on the use of sodium alginate as a protective coating for fishery products showed that several varieties of fishes and shell fish had better keeping qualities when coated with sodium alginate.
    • The effect of mesh size on the fishing efficiency of sardine gill nets

      Joseph, K.M.; Sebastian, A.V. (1964)
      The study deals with the effect of mesh size on the fishing power of gill nets. The authors have shown that there can be substantial difference in the out puts of sardine gill nets, of identical design and rigging, but of different mesh sizes, operated under the same conditions.
    • Design of a half ton dehydrator for fish

      Swaminath, M. (1964)
      A half-ton capacity artificial dryer has been designed at the Central Institute of Fisheries Technology for drying fish like Mackerel, Sardine, White bait etc. The dryer is a hot air recirculation type. 80 KW thermostatically controlled heating coils are made use of for heating the air. The air is circulated by means of an axial flow pattern fan. Drying takes place at a temperature of 115 degrees F. The structure of the dryer comes to about Rs. 20,000.
    • Studies on packaging of fresh fish

      Rao, C.V.N.; Perigrien, P.A. (1964)
      Studies conducted in the laboratory and field have shown that iced fish can be preserved for longer periods in fresh and edible condition in conventional bamboo baskets by providing additional insulated linings of double layer of gunny and polythene or bitumen coated kraft paper. The quality of fish is adjudged by chemical and organoleptic evaluations.
    • Preliminary experiments to evaluate the relative efficiency of different natural baits in line fishing

      Balasubramanyan, R. (1964)
      A series of experimental hand-line fishing operations were conducted off the Madras coast employing five different types of natural fish baits. Based on the total catch of fish per day of fishing under each type of bait used, a comparative study on the catching efficiency of the different natural fish-baits was made. The reaction of the fish to particular bait appears to be the result of a complex process. Live baits have the maximum catching efficiency as seen from the fish landings when live prawns were employed as the bait. The procurement of live baits is a serious problem to the fishermen and as such suitable artificial fish lures can be profitably employed.
    • Sampling of frozen prawns for bacteriological estimation

      Krishna Iyer, H.; Kaimal, P.N.R.; Pillai, V.K. (1964)
      Experiments were conducted to study the significance of difference between samples taken from the surface and interior of a frozen shrimps block, as well as to determine the size of sample necessary to represent the whole block, with respect to bacterial count determination. The results showed that the surface samples and interior samples did not differ significantly at 5% level of significance and that the minimum quantity representative of the block was 21-26 gms in the case of a block weighing about 1300 gms. The procedure adopted for taking the bacterial count was the normal standard plate count method.
    • The four seam trawl nets operated off Cochin: an analysis of the design aspects: the integration of the various parts of trawl

      Nair, R.S.; George, N.A. (1964)
      A study has been made of 22 different designs of four seam trawls operated at Cochin for shrimp trawling. Formulae for the relations between the different parts of the nets have been derived.
    • Study on primary production and its importance in an integrated fisheries research programme

      Raghu Prasad, R. (1964)
      The importance of the ocean as a source of cheap protein food is too well-known to be emphasised. In recent years there has been a tremendous increase in the fishing activity in all maritime nations and during the last few years the total world production has markedly grown. This study explains the importance of a planned exploitation according to scientific principles to preserve the availability and natural fluctuations in the abundance of stocks of marine fish and other commercially important organisms.
    • Towing resistance of ottar [i.e. otter] trawls used for shrimps from small mechanised boats

      Satyanarayana, A.V.V.; Nair, R.S. (1964)
      Attempts have been made to determine the towing resistance of the shrimp otter trawls operated from small trawlers off Cochin and the actual resistance on the warps for eight different boats working under the normal fishing conditions have been measured. Engine Horse Power utilised for towing the gear at normal speed and fishing conditions has also been estimated.
    • Technical terms in fishing gear materials and gear fabrication

      Eapen, P.K. (1964)
      Papers dealing with technical terms in fisheries science are few. This paper however, covers only one or two aspects of the subject, namely fishing gear materials and fishing gear fabrication. Similar papers on other aspects are also planned. Short explanations or descriptions are also given wherever considered necessary.
    • Impact of technology on Indian fisheries

      Panikkar, N.K. (1964)
      The large increase in world output from fisheries and its increased use as food by people all over the world have been the result of successful application of newer knowledge in fisheries technology. The paper deals with some of the important fields in which modern technology has influenced the course of events in the development of Indian fisheries.
    • Effect of aureomycin on the behaviour of certain free amino acids in oil sardine (Sardinella longiceps) held in ice storage

      Jacob, S.; Karthiayani, T.C.; Rajendranathan Nair, M. (1964)
      The course of development of a few free amino acids under the influence of aureomycin in oil sardine (Sardinella lingiceps) held in ice storage was investigated. The levels of leucines and valine regularly increased in the control and aureomycin treated fush throughout the storage period. Alanines and threonine showed similar trend in both control and fish treated with 20ppm aureomycin. These amino acids however showed a gradual fall in fish treated at 5 ppm level. The changes in tyrosine+tryptophane were found to be irregular. Most of the amino acids studied indicated a remarkable change in trend by about the 16th day of ice storage in the case of fish treated with 50ppm aureimycin.
    • On a rational criterion for assigning batch number to processed products of shrimps

      Banerji, S.K. (1964)
      Investigations were conducted to find the variability of processed shrimps with respect to two quality characteristics, namely, the numbers of deteriorated and discoloured pieces. Samples were collected for three days from two arbitrarily selected processing factories from Cochin at the pre-freezing stages. Results show that both the quality characteristics vary significantly between different size-grades, but while the variation in the number of deteriorated pieces between days is not significant, the variation in the number of discoloured pieces between days is significant.
    • A rapid procedure for the approximation of bacterial load in fishery products

      Mathen, C.; Lekshmy, A.; Krishna Iyer, H.; Pillai, V.K. (1964)
      The production of colour by homogenised fish material in a simplified sugar medium containing and acid indicator has been made use of for the rapid approximation of bacterial load in such products. The medium thus developed contains poptone, tryptone, yeast extract, sodium chloride and beef extract besides dextrose. The time of colour production is influenced to some extent by the level of sodium chloride in the medium and is almost always inversely proportional to the bacterial load in the homogenate.
    • A note on proximate composition of tuna fish paste from Minicoy

      Valsan, A.P.; Kandoran, M.K.; Suryanarayana Rao, S.V. (1964)
      An indigenous method of preparing fish paste from Tuna, exclusively practiced in Minicoy islands is described. Detailed proximate analysis data of the product is presented and it has been compared with the values obtained for similar products of foreign countries. A chromatographic study is also carried out for essential amino acids and also with special reference to detecting any possibilities of histamine poisoning, especially in view of the reported high values of histidine in tuna meat. However, free histamine is not detected in the sample.