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  • 1
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    A rapid procedure for the approximation of bacterial load in fishery products (2021)
    In:  http://aquaticcommons.org/id/eprint/16155 | 12051 | 2015-02-08 09:38:39 | 16155 | Society of Fisheries Technologists, India
    Details
    Publication Date: 2021-06-29
    Description: 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.
    Keywords: Biology ; Health ; bacterial load ; fishery products ; homogenised fish material ; bacteria
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 57-67
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  • 2
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    Sampling of frozen prawns for bacteriological estimation (2021)
    In:  http://aquaticcommons.org/id/eprint/16143 | 12051 | 2015-02-09 08:09:11 | 16143 | Society of Fisheries Technologists, India
    Details
    Publication Date: 2021-06-29
    Description: 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.
    Keywords: Chemistry ; Fisheries ; bacteriological estimation ; frozen pranwns
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 168-170
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  • 3
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    On the operation of small shrimp trawls in shallow waters-scope-ratio and size-depth relation (2021)
    In:  http://aquaticcommons.org/id/eprint/16211 | 12051 | 2015-02-10 08:18:45 | 16211 | Society of Fisheries Technologists, India
    Details
    Publication Date: 2021-06-30
    Description: Studies on small trawls seem to be comparatively less. These trawls are generally operated in shallower waters, where due to the limitations in the length of warp that could be released, size restrictions have to be considered for their efficient functioning. An attempt has been made to assess the effective scope-ratio of length of warp required for the operation of trawls at shallower depth and to a judge the size of trawl suitable for use at lower depths.
    Keywords: Fisheries ; trawl nets ; trawling ; shallow water ; shrimp fisheries ; stock assessment
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 59-71
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  • 4
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    On the relative efficiency of different shaped otter boards (2021)
    In:  http://aquaticcommons.org/id/eprint/16229 | 12051 | 2015-02-13 08:46:15 | 16229 | Society of Fisheries Technologists, India
    Details
    Publication Date: 2021-07-01
    Description: Rectangular, horizontal curved and oval otter boards were tested under identical fishing conditions and their relative efficiency ascertained on the basis of towing tension and the horizontal opening of the boards. While the tension in the warps with the different otter boards was not significant, the horizontal curved board gave increased lateral spread to the net.
    Keywords: Fisheries ; otter boards ; gear technology ; trawlers ; gear efficiency
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 53-61
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  • 5
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    A survey of the microbiological quality of commercial frozen prawn products (2021)
    In:  http://aquaticcommons.org/id/eprint/16181 | 12051 | 2015-02-09 07:40:59 | 16181 | Society of Fisheries Technologists, India
    Details
    Publication Date: 2021-06-30
    Description: The paper presents the results of a bacteriological survey carried out on 2,917 samples of frozen prawn, 55 samples of raw material, 35 samples of water, 4 samples of ice and 42 samples of various equipment used for processing. The survey covered a period of three years (1960-63) and comprised of samples collected from five of the leading processing factories in Cochin. Frozen products tested consisted of headless (marine and fresh water), peeled and deveined and cooked frozen samples. Statistical analysis of the data shows that there is no significant variation between samples and between factories with respect to product quality. The standard plate count varied between 1.0x10(4 superscript) and 1.0x10(6 superscript) per gram for headless and between 1.0x10(4 superscript) and 1.0x10(7 superscript) for peeled and deveined and cooked frozen samples. Majority of the samples had bacterial load well within the limits prescribed for such products.
    Keywords: Fisheries ; bacteriological analysis ; processing fish products ; prawns ; frozen storage
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 115-125
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  • 6
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    Experiments in constituting a taste panel for canned and frozen prawn products (2021)
    In:  http://aquaticcommons.org/id/eprint/16321 | 12051 | 2015-03-10 15:00:39 | 16321 | Society of Fisheries Technologists, India
    Details
    Publication Date: 2021-07-03
    Description: With a view to constituting a taste panel in the laboratory for detecting the flavor changes in canned and frozen prawn, three methods of panel selection (scalar scoring method, range and deviation method and triangular method) were tried. Out of the three, triangular method was found to be suitable for panel formation in canned and frozen prawn. Using this method a panel of six members was formed for detecting flavor changes in the two products.
    Keywords: Fisheries ; processed fishery products ; canned prawns ; frozen prawns ; quality control ; sensory evaluation ; scalar scoring ; deviation method ; triangular method
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 129-133
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  • 7
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    Comparative fishing ability and economic efficiency of mechanised trawlers operating along the Kerala coast (2021)
    In:  http://aquaticcommons.org/id/eprint/16296 | 12051 | 2015-03-28 15:11:54 | 16296 | Society of Fisheries Technologists, India
    Details
    Publication Date: 2021-07-03
    Description: This study was undertaken with a view to finding out the comparative fishing ability and economic performance of different fishing vessel sizes 9.15m (30'), 9.76m (32') and 10.97m (36') designed by the Central Institute of Fisheries Technology and operating along the Kerala coast. Data were collected from selected vessels of these sizes for four consecutive fishing seasons from 1964-65 to 1967-68. The catch/unit effort and total effort per year for the 10.97m (36') vessels were much better than those for the 9.76m (32') vessels. The yearly landings and the crew remuneration for the former were about twice those of the 9.76m (32') vessels. The economic efficiency of the 10.97m (36') vessels was also much better. The decline in landings per year in both size groups was more due to the reduction in the effort per year than the decline in catch/unit effort.
    Keywords: Fisheries ; mechanised trawlers ; catching methods ; catch efficiency ; economic models ; fishing technology ; coastal waters ; Kerala ; India
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 71-80
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  • 8
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    Adoption of recommended quality control practices by fish processing factories (2021)
    In:  http://aquaticcommons.org/id/eprint/18831 | 12051 | 2015-11-17 21:36:50 | 18831 | Society of Fisheries Technologists, India
    Details
    Publication Date: 2021-07-12
    Description: Responses to mailed questionnaires from 31 fish processing factories revealed that for 55 recommended practices in quality control, the percentage of adopters varied from 21.43 to 100.The adoption index was not correlated to any of five variables studied. The mean adoption index did not differ significantly between five other criteria related to fish processing. Rate of rejection or reprocessing at the factory itself was highly correlated with the amount of water used per tonne of processed material.
    Keywords: Fisheries ; quality control ; fish processing factories ; recommendations ; practices
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 62-66
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  • 9
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    Mesh regulation in backwater prawn fishing gear (2021)
    In:  http://aquaticcommons.org/id/eprint/18253 | 12051 | 2015-10-16 07:21:53 | 18253 | Society of Fisheries Technologists, India
    Details
    Publication Date: 2021-07-07
    Description: Size grade composition of different species of prawn caught by various back water fishing gear have been enumerated.57 to 75% of P. indicus captured was less than 10 cm in length. M. dobsoni and M. monoceros captured were less than 10 cm in length. A cod end mesh size of 20-25 mm has been recommended for stake nets for the capture of P. indicus of 10 cm length along with other species.
    Keywords: Fisheries ; gear selectivity ; mesh regulations ; net fishing ; coastal fisheries ; metapenaeus ; penaeidae ; penaeus
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 117-128
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  • 10
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    A study on the average yield of different species pf prawns used for freezing and canning (2021)
    In:  http://aquaticcommons.org/id/eprint/18264 | 12051 | 2015-10-18 07:23:11 | 18264 | Society of Fisheries Technologists, India
    Details
    Publication Date: 2021-07-07
    Description: The paper deals with the average yield of four spp of prawns viz. Metapenaeus dobsoni, Metapenaeus affinis, Parapenaeopsis stylifera and Penaeus indicus on conversion to peeled and deveined (PD), cooked and peeled (CP) and head less shell on (HL) forms in the different months of a year and the likely variations observed in the average yield.
    Keywords: Fisheries ; freezing ; canning ; fish conversion factors ; Metapenaeus dobsoni ; Metapenaeus affinis ; Penaeidae ; Penaeus indicus ; Parapenaeopsis stylifera ; prawns
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 25-30
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