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  • 1
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    In:  http://aquaticcommons.org/id/eprint/15913 | 12051 | 2015-01-03 09:48:44 | 15913 | Indian Fisheries Association
    Publication Date: 2021-07-11
    Description: A bioassay study was conducted using three organic pesticides to determine their comparative toxicity to fingerlings of Hypophthalmichthys molitrix. There was wide variation in the toxicity of different pesticides with 24 hr LC sub(50) values ranging from 0.000403 to 0.294 mg/l. Endosulfan appeared to be the most toxic, whereas BHC was the least.
    Keywords: Biology ; Environment ; Pollution ; organic compounds ; toxicity tests ; bioassays ; fingerlings ; Hypophthalmichthys molitrix ; freshwater
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 65-68
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  • 2
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    In:  http://aquaticcommons.org/id/eprint/16606 | 12051 | 2015-04-09 12:37:10 | 16606 | Indian Fisheries Association
    Publication Date: 2021-07-07
    Description: Physical characteristics of waterlogged and saline soils of five districts, namely Rohtak, Faridabad, Gurgaon, Sonipat and Jhajjar, of Haryana were studied to evaluate the aquaculture potential. The soil samples from 76 sites were procured and analysed for pH, electrical conductivity, soil particles and water retention capacity, since the knowledge of these parameters is essential for the preliminary evaluation of a site for aqua-farming. Six soil types were identified and clay-loam was observed to be the maximum at 45 (59.21%) sites, followed by silty-clay loam at 14 (18.42%), sandy-clay loam at six (7.89%), silty-loam at four (5.26%), sandy-loam at four (5.26%) and loam at three (3.94%) sites. The pH of soil indicated moderate to high alkaline conditions ranging between 8.01and 9.00 at 53 (69.73%) sites, 9.01 and 10.00 at 17 (22.36%) sites, and low between 7.01 and 8.00 at six (7.89%) sites. The electrical conductivity was found to range between 〈1 and 10 mmho cmˉ¹ with the value of 〈1.0 mmho cmˉ¹ at 36 (47.36%) sites. The water retention capacity was observed mostly to be moderate. The paper describes the interrelationship between these parameters with reference to the suitability for aqua-farming.
    Keywords: Aquaculture ; soil survey ; aquafarming ; soil particles ; pH ; electrical conductivity ; water retention capacity ; Rohtak ; Faridabad ; Gurgaon ; Sonipat ; Jhajjar ; Haryana ; India
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 1-8
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  • 3
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    In:  http://aquaticcommons.org/id/eprint/15941 | 12051 | 2015-01-16 09:07:45 | 15941 | Indian Fisheries Association
    Publication Date: 2021-07-11
    Description: Intergeneric catla-rohu hybrids were bred through hypophysation and about 5.25 lakh spawn of F2 generations were produced. The rate of survival from fertilized eggs to spawn ranged from 62.5 to 96.4% at 26-30 degree C.
    Keywords: Aquaculture ; hypophysectomy ; fish culture ; induced breeding ; hybrid culture ; survival ; Labeo rohita ; Catla catla ; freshwater
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 49-50
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