Effect of Anthropogenic Activities on the Microbiological Quality of Lobia Creek in Southern Ijaw of Bayelsa State, Nigeria
FV Iyeritei*, O Obire and SI Douglas
Department of Microbiology, Rivers State University, Nigeria
*Corresponding Author: FV Iyerite, Department of Microbiology, Rivers State University, Nigeria.
Received: June 21, 2021; Published: July 23, 2021
The negative impact of human activities on the aquatic environment and biodiversity within the maritime field poses a serious threat on public health. Lobia Creek in Bayelsa State constitutes the main source of rural water supply and is used for various human activities. This study was therefore aimed at determination of the impact of human activities on the microbiological properties of the Creek. Surface water samples were collected from five stations (control, drinking, abattoir, Jetty, and toilet) along the Creek in sterile sample bottles. The samples were transported in an ice packed cooler to the Microbiology laboratory of the Rivers State University for microbiological analyses using standard techniques. The isolated bacteria were also identified after gene amplification and sequencing. The data collected were statistically analyzed using Tukey Kramer statistical tool. Results of microbiological analysis showed that counts of total heterotrophic bacteria ranged from 0.36 ± 0.04 ×105 to 1.44 ± 28.28 × 106 CFU/ml, total fungi ranged from 0.7 ± 0.01 × 103 to 2.1 ± 0.42 × 104 CFU/ml, while total Coliform count ranged from 1.8 ± 0.28 × 104 to 7.6 ± 0.28 ×104 CFU/ml feacal Coliform count ranged from 0.7 ± 0.21 × 104 to 3.8 ± 0.57 × 104CFU/ml. Statistical analysis showed significant difference across the stations of the Creek indicating negative impact of human activities. The bacterial isolates molecularly identified included Lysinibacillus macroides, Staphylococcus epidermidis, Proteus mirabilis, Escherichia coli and Shewanella algae. The fungi identified were Penicillium sp, Aspergillus flavus, Aspergillus niger, Candida albicans, Candida krusei, Rhizopus spp. and Mucor spp. The presence of E. coli indicates faecal contamination of the creek water. The presence of Shewanella algae which causes ear, skin and soft tissue infections in the water samples is worrisome. The impact of human activities on Lobia creek therefore poses a serious threat on public health and the immediate environment especially as most of the bacteria and fungi isolated in this study are potential pathogens of microbial infection. The findings in this study should strengthen efforts to ensure strict compliance to policies, personal hygiene and proper waste management practices to avoid outbreak of water-borne disease.
Keyword: Lobia Creek; Microbiological Quality; E. coli; Shewanella algae; Candida albicans
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