Study on bacteriological and physicochemical conditions of fish hatcheries water along with the antimicrobial traits

Authors

  • Nur IT Department of Microbiology, Stamford University Bangladesh.51, Siddeswari Road, Dhaka-1217.
  • Hossain MK Department of Bioscience, Graduate School of Science and Technology, Shizuoka University, Oya 836, Suruga-ku, Shizuoka, 422-8529, Japan
  •  Mrityunjoy Acharjee Department of Bioscience, Shizuoka University, Japan 

Abstract

Fisheries sectores have been playing significant role in our economy. Therefore, proper maintenances of fish hatcheries is so important however fish hatcheries are now in  tremendous threat due to the undesired changes in the physical, chemical and biological characteristics of water. The motive of the current study was to determine the physicochemical and microbiolo-gical quality of fish hatcheries water along with their antibacterial effect on different environmental bacteria through conventional culture methods as well as agar well diffusion method. The physical conditions of the water (temperature, pH, electric conductivity, dissolved oxygen, total dissolved solids, alkalinity, total hardness, turbidity, biological oxygen demand, ammonia, chlorine,) were in marginal value. The total viable count was estimated within the range of 1.8x105 to 5.6x105cfu/ml. The presence of specific pathogens (E.coli, Klebsiella spp., Vibrio spp., Staphylococcus spp. and Pseudomonas spp.) were confirmed through series of biochemical tests. Among the nine antibiotics, six were very effective against the isolated bacteria while the other isolates were found to be highly resistant against three (vancomycin, polymyxin, nalidixic acid) antibiotics. Interestingly, hatcheries water unveiled their antibacterial activity by producing clear zone of inhibition against the bacteria, which might be one of the issue to think about the pre-treatment procedure of the hatchery water. Proper monitoring and hygienic practice is obligatory for maintaining the quality of fish.

 Keywords: Water quality, Physicochemical properties, Fish borne pathogen, Antimicrobial activity

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Author Biography

Nur IT, Department of Microbiology, Stamford University Bangladesh.51, Siddeswari Road, Dhaka-1217.

 

 

Additional Files

Published

2020-06-29

How to Cite

IT, N., MK, H., & Acharjee, Mrityunjoy. (2020). Study on bacteriological and physicochemical conditions of fish hatcheries water along with the antimicrobial traits. International Journal of Life Sciences, 8(2), 262–270. Retrieved from https://ijlsci.in/ls/index.php/home/article/view/6

Issue

Vol. 8 No. 2 (2020): International Journal of Life Sciences

Section

Research Articles

License

Copyright (c) 2020 Nur IT, Hossain MK,  Mrityunjoy Acharjee

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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