Distribution of Aeromonas bacterial population in water, sediment and Nile tilapia in fish culture pond, Guder, Ethiopia
Assessing heterotrophic bacterial population in water, sediment, and fish tissue assumes importance in predicting the quality of the fish and water quality in the culture system. The present study aimed to estimate the total heterotrophic bacterial population in water, sediment, and Nile tilapia (O...
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Hawassa University
2020-07-01
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| Series: | East African Journal of Biophysical and Computational Sciences |
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| Online Access: | https://www.Ajol.Info/index.php/eajbcs/article/view/221370 |
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| author | Bekele Lema Natarajan Pavanasam Kassaye Balkew Zufan Bedewi |
| author_facet | Bekele Lema Natarajan Pavanasam Kassaye Balkew Zufan Bedewi |
| author_sort | Bekele Lema |
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Assessing heterotrophic bacterial population in water, sediment, and fish tissue assumes importance in predicting the quality of the fish and water quality in the culture system. The present study aimed to estimate the total heterotrophic bacterial population in water, sediment, and Nile tilapia (Oreochromis niloticus) cultured in an aquaculture farm at Guder Campus, Ambo University, Ethiopia. Water, sediment, and fish body tissue were collected from the fish rearing pond, and were estimated for total heterotrophic bacterial population. Various physico-chemical characteristics were recorded following standard methods. The level of bacterial population in water, sediment and fish tissue were done by following standard methods and expressed as colony-forming units (CFU) in water per milliliter (CFU ml-1), sediment and fish tissues(CFU g-1).The results revealed more bacterial population in sediment (3.43 x106 to 5.54 x 106 CFU g-1) than in water (1.45x106 to 4.0x106 CFU ml-1) and fish tissues (1.06 ± 1.10x104 to 1.74 ± 10.8x104 CFU g-1in gill filaments; 1.62 ± 11.2x104 to 2.82 ± 13.0x104 CFU g−1 in intestine from; and 0.82 ± 5.9x104 to 1.60 ± 12.1.6x104 CFU g-1; in kidney from 0.48 ± 5.0 to 0.77 ± 4.1x104 CFU g-1. in skin). Among fish tissues; the heterotrophic bacterial population was more in the intestine than other organs of Oreochromis niloticus. In conclusion, the total heterotrophic bacterial population was dominated in sediment than the other samples. The present study concludes that physicochemical characters of water influence the growth and survival of total heterotrophic bacterial population in fish pond. The development of stress due to changes in physicochemical characters of water, and rich nutrient load in pond soil facilitate the growth of pathogenic bacteria which infect the culture fish O. niloticus. The detrivore feeding habits of O. niloticus is responsible for more number of bacterial populations in intestine than in other organs.
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| format | Article |
| id | doaj-art-cf70b43e41e049d8810fa3cbdc22b3e5 |
| institution | Kabale University |
| issn | 2789-360X 2789-3618 |
| language | English |
| publishDate | 2020-07-01 |
| publisher | Hawassa University |
| record_format | Article |
| series | East African Journal of Biophysical and Computational Sciences |
| spelling | doaj-art-cf70b43e41e049d8810fa3cbdc22b3e52025-02-08T19:51:08ZengHawassa UniversityEast African Journal of Biophysical and Computational Sciences2789-360X2789-36182020-07-0111Distribution of Aeromonas bacterial population in water, sediment and Nile tilapia in fish culture pond, Guder, EthiopiaBekele Lema0Natarajan Pavanasam1Kassaye Balkew2Zufan Bedewi3Department of Biology, Ambo University, EthiopiaDepartment of Aquatic Sciences, Fishery and Aquaculture, , College of Natural and Computational Science, Hawassa University, Hawassa, EthiopiaDepartment of Aquatic Sciences, Fisheries and Aquaculture, Hawassa UniversityFaculty of Biological Sciences, College of Natural and Computational Science, Hawassa University, Hawassa, Ethiopia Assessing heterotrophic bacterial population in water, sediment, and fish tissue assumes importance in predicting the quality of the fish and water quality in the culture system. The present study aimed to estimate the total heterotrophic bacterial population in water, sediment, and Nile tilapia (Oreochromis niloticus) cultured in an aquaculture farm at Guder Campus, Ambo University, Ethiopia. Water, sediment, and fish body tissue were collected from the fish rearing pond, and were estimated for total heterotrophic bacterial population. Various physico-chemical characteristics were recorded following standard methods. The level of bacterial population in water, sediment and fish tissue were done by following standard methods and expressed as colony-forming units (CFU) in water per milliliter (CFU ml-1), sediment and fish tissues(CFU g-1).The results revealed more bacterial population in sediment (3.43 x106 to 5.54 x 106 CFU g-1) than in water (1.45x106 to 4.0x106 CFU ml-1) and fish tissues (1.06 ± 1.10x104 to 1.74 ± 10.8x104 CFU g-1in gill filaments; 1.62 ± 11.2x104 to 2.82 ± 13.0x104 CFU g−1 in intestine from; and 0.82 ± 5.9x104 to 1.60 ± 12.1.6x104 CFU g-1; in kidney from 0.48 ± 5.0 to 0.77 ± 4.1x104 CFU g-1. in skin). Among fish tissues; the heterotrophic bacterial population was more in the intestine than other organs of Oreochromis niloticus. In conclusion, the total heterotrophic bacterial population was dominated in sediment than the other samples. The present study concludes that physicochemical characters of water influence the growth and survival of total heterotrophic bacterial population in fish pond. The development of stress due to changes in physicochemical characters of water, and rich nutrient load in pond soil facilitate the growth of pathogenic bacteria which infect the culture fish O. niloticus. The detrivore feeding habits of O. niloticus is responsible for more number of bacterial populations in intestine than in other organs. https://www.Ajol.Info/index.php/eajbcs/article/view/221370Bacterial population; Nile tilapia; Water quality; Aeromonas bacterial |
| spellingShingle | Bekele Lema Natarajan Pavanasam Kassaye Balkew Zufan Bedewi Distribution of Aeromonas bacterial population in water, sediment and Nile tilapia in fish culture pond, Guder, Ethiopia East African Journal of Biophysical and Computational Sciences Bacterial population; Nile tilapia; Water quality; Aeromonas bacterial |
| title | Distribution of Aeromonas bacterial population in water, sediment and Nile tilapia in fish culture pond, Guder, Ethiopia |
| title_full | Distribution of Aeromonas bacterial population in water, sediment and Nile tilapia in fish culture pond, Guder, Ethiopia |
| title_fullStr | Distribution of Aeromonas bacterial population in water, sediment and Nile tilapia in fish culture pond, Guder, Ethiopia |
| title_full_unstemmed | Distribution of Aeromonas bacterial population in water, sediment and Nile tilapia in fish culture pond, Guder, Ethiopia |
| title_short | Distribution of Aeromonas bacterial population in water, sediment and Nile tilapia in fish culture pond, Guder, Ethiopia |
| title_sort | distribution of aeromonas bacterial population in water sediment and nile tilapia in fish culture pond guder ethiopia |
| topic | Bacterial population; Nile tilapia; Water quality; Aeromonas bacterial |
| url | https://www.Ajol.Info/index.php/eajbcs/article/view/221370 |
| work_keys_str_mv | AT bekelelema distributionofaeromonasbacterialpopulationinwatersedimentandniletilapiainfishculturepondguderethiopia AT natarajanpavanasam distributionofaeromonasbacterialpopulationinwatersedimentandniletilapiainfishculturepondguderethiopia AT kassayebalkew distributionofaeromonasbacterialpopulationinwatersedimentandniletilapiainfishculturepondguderethiopia AT zufanbedewi distributionofaeromonasbacterialpopulationinwatersedimentandniletilapiainfishculturepondguderethiopia |