1990

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    Activity of Soil Fungi of Mangalvan, The Mangrove Ecosystem of Cochin Backwater
    (Society of Fisheries Technologists (India) Cochin, 1990) PRABHAKARAN, N; GUPTA, RANU
    Results of the qualitative screening of fungal isolates for the production of hydrolytic enzymes and phosphate solubilization are given in Table 1. Table 2 presents the percentage of the positive isolates for each enzyme production. It is found that most of the fungal isolates were capable of producing one or the other hydrolytic
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    Adoption Behaviour and Impact of Technology Transfer among Fish Farmers
    (Society of Fisheries Technologists (India)Cochin, 1990) BALASUBRAMANIAM, S; PERUMAL, G
    The extent of adoption of eleven improved fish farming practices has been studied among 80 fish farmers. The multiple regression analysis revealed a R’ value of 0.5718. Among the characteristics of fish farmers, distance of fish farm from home, knowledge about improved fish farming and fish yield per hectare had significant positive influence towards their adoption behaviour. The mean impact score of fish farmers was 72.91
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    Bacteriology of Indian Oil Sardine (Sardinella longiceps Valenciennes) Stored in Chilled Sea Water
    (Society of Fisheries Technologists (India) Cochin, 1990) SHETTY, T. S; SHETTY, T M R
    The changes in the bacteriology of Indian oil sardine (Sardinella longiceps valenciennes) and the medium surrounding the fish during storage in chilled sea water (2 i 1°C) were detennined by the identification of bacterial isolates upto their generic level. The flora of the freshly caught fish consisted mainly Micrococcus spp., Bacillus spp., Flavobacterium spp., Pseudomonas spp., Acinetobacter spp. and Vibrio spp., While that of the freshb' collected sea water consisted mainly Micrococcus spp., Vibrio spp., Pseudomonas spp., Arthrobacter spp., Bacillus spp. and Aeromonas spp. The flora of the fish and the medium surrounding the fish after 10 days storage consisted mainly of Pseudomonas spp., Vibrio spp., Flavobacterium spp., Acinetobacter spp. and Aeromonas spp
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    A Comparative Study on the Quality Characteristics of Traditional Masmin and Mechanical Kiln Prepared Masmin
    (Society of Fisheries Technologists (India) Cochin, 1990) KINGSTON, DAVID; RAJAGOPALASAMY, S; C. B. T.; G., SUGUMAR
    The quality characteristics of traditional masmin as well as masmin prepared in the mechanical kiln have been compared. The quality of the mechanical kiln prepared product is superior when compared to the traditional product.
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    Comparative Toxicity of Four Detergents on a Prawn Metapenaeus dobsoni (Miers)
    (Society of Fisheries Technologists (India) Cochin, 1990) SAKUNTHALA, B; SHANMUKHAPPA, H; NEELAKANTAN, B
    The toxicity bioassay experiment was conducted using four detergents, namely, linear alkylbenzene sulfonate (LAS), branched alkylbenzene sulfonate (BAS), alfa olefin sulfonate (AOS) and sodium sulfonate (SS.) 0.1 Metapenaeus dobsoni juveniles. The results indicated that, LAS was most toxic and AOS the least and were in the order: LAS>SS. >BAS>AOS. The LCN, LC50 and LC84 concentrations for all the detergents were calculated for 24, 48, 72 and 96 hours. The 95 % confidence limits for LC50 and slopes were also calculated by probit analysis.
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    Copper, Chromium and Manganese in Some Fishes of Kali Estuary, Karwar
    (Society of Fisheries Technologists (India) Cochin, 1990) VEER, M. P; BHAT, U. G; SHANMUKHAPPA, H
    Copper, chromium and manganese concentrations in the gill, muscle body and whole samples of four estuarine fishes, namely, Mugil cephalus, Sillago sihama, Leiogna- thus brevirostris and Gerromorpha sety"er were determined during the period July- November, 1989. Concentrations of these metals in different body parts varied from species to species. The three trace metals in M. cephalus, S. sihama and L. brevirostris in whole body were in the order Mn > Cr >Cu whereas in G.setQ‘er the abundance was in the order Cr >Cu >Mn. Significant correlation was observed between concentration of metals in gills and whole body in all species except M. cephalus. Considering the trace metals concentration in relation to wet weight, all the metals are within safety limits in edible part.
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    Effect of Corn Oil on the Quality and Storage Stability of Pickled Fish
    (Society of Fisheries Technologists (India) Cochin, 1990) BEHANAN, LIZY; D, SUDHARMA; M. K., MUKUNDAN; V., MALIKA; MATHEW, SALEENA
    The results of preparing lish pickles using corn oil and gingili oil are reported. Results showed that the pickle made using corn oil and acetic acid was superior in keeping quality, taste and texture than the pickle prepared using gingili oil and acetic acid. In addition the production of alpha amino nitrogen and free fatty acid during storage was found to be much less in corn oil and acetic acid treated piclde.
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    Estimation of D10 Value for Salmonella Serotypes Isolated from Processed Frozen Frog Legs
    (Society of Fisheries Technologists (India) Cochin, 1990) RAJAGOPALAN, D; DESHPANDE, C.K; JOSHI, LEELA
    Variation of sensitivity among different serotypes of salmonella was carried out for comparative purpose in the present study. D value of salmonella in Hartsell’s broth was reported to be between 0.025 and 0.55 M rad. S.pvIlorum, S.enteritidis and S_paratypht A showed 0.025 Miad while Scholeaesuns and S.paratyphi B.0.055 M rad (Dorethy et al., 1970).
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    Filamentous Fungi Isolated from the EEZ along the West Coast of India
    (Society of Fisheries Technologists (India) Cochin, 1990) PRABHAKARAN, N; GUPTA, RANU
    Thirty nine isolates of filamentous fungi of the genera Alternaria, Cladosporium, Fusarium and Penicillium were isolated from 78 water samples of 15 stations during FORV Sagar Sampada cruise No. 24 (16-11-1986 to 04-12-1986). Cladosporium was dominant including the marine species C. herbarum. Most of the filamentous fungi isolated restricted themselves to the coastal areas and theislands indicating their terrigenous origin and adaptation to high salinity. Aeromycological studies of four laboratories and hydrographic winch area of the ship revealed the presence of Aspergillus, Cephalosporium, Curvularia, Drechslera, Fusarium and Penicillium. Fusarium was dominant followed by Aspergillus including A. flavus.
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    Filth and Decomposition in Prawns from Peeling Sheds Around Cochin
    (Society of Fisheries Technologists (India) Cochin, 1990) THOMAS, FRANCIS; MATHEW, KURUVILA
    Samples of prawn meat collected from peeling sheds around Cochin were examined for filth and decomposition. These samples were found to be contaminated by house flies/house fly fragments in 7% samples, flies of the genus Drosophila in 12% samples, red ants/red ant fragments in 19% samples and head louse in 1% samples. 5-6% of the samples were found to be decomposed. It was observed that the smaller the size of the prawn, the higher the contamination by flies and ants and also decomposition.
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    Hydrographic Conditions in the Region off Hosbettu, South Kanara Coast and its Influence on Pelagic Fisheries
    (Society of Fisheries Technologists (India) Cochin, 1990) RIVONKER, C.U; REDDY, M. P. M
    Observations on the oceanographic parameters like temperature, salinity, pH, dissolved oxygen and transparency were made at four stations off the Hosbettu region, along South Kanara coast. Temperature and salinity of columnar waters were found to have direct effect on the fishery of oil sardine and Indian mackerel of the region. However the pelagic fishery was indirectly influenced by pH, dissolved oxygen and transparency in the study area.
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    Plankton of Karwar Waters with Remarks on the Hydrographic Conditions and Fishery
    (Society of Fisheries Technologists (India) Cochin, 1990) NAIK, U. G; REDDY, C. R; SHETTY, D. C; NEELAKANTAN, B
    The results obtained from the investigations on the abundance and seasonal Huctuations of plar k‘on and hydrographic condiiions of fishing areas cf Karwar waters are pres :nted and discussed. The displacement volume of plankton (9.2~29.6 ml/m’) showed two peaks one in November-December and other in February-March. Among the phytoplankton, the diatoms constitute the major part of the total phytoplankton with dominant species like Fragillaria, Coscinodiscus, Thalassiothrix, Chaetoceros, Nirzschina, Rhizosolenia and Biddulphia whereas among the zoopl;nktons, the dominant groups mainly comprised of` copepods, decapod larvae, chaetognaths and medusae. The observed valuis ofhydrographic parameter showed a birnodil peak. A correlation between plankton abundance and fishery has been attempted in this paper.
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    Size at Maturity in the Male Crab Scylla serrata as Determined by Chela Allometry and Gonad Condition
    (Society of Fisheries Technologists (India) Cochin, 1990) PRASAD, P. N; NEELAKANTAN, B
    Sexual maturity in the male mud crab, Scylla serraza attains at the size range 81-90 mm carapace width (CW). At 97 mm CW 50% of males are mature. Highly significant (P < 0.00l) relationships are obtained between chela allometry and carapace measurements. About 34% of male crabs harvested commercially from the Karwar area during December, 1984 and November, 1985 were immature.
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    Utilization of Low Value Fish - 1. Preparation of Fish Fingers from Croaker and Perches
    (Society of Fisheries Technologists (India) Cochin, 1990) REDDY, LAKSHMINATHA; SHETTY, T. M. R; DORA, K. C
    A method for the preparation of fish fingers from croaker and pink perch meat has been developed. The recipe, ingredients for the paste, batter and the breading mix have been standardised through taste panel studies. An extrusion technique has been used to make fish fingers to the required size and shape rather than sawing of the frozen meatblocks generally followed.