PHYSICOCHEMICAL AND MICROBIAL EVALUATIONS OF DIFFERENT FISH PONDS’WASTE WATERS AND THE ANTIBIOTICS PROFILES OF ISOLATED BACTERIA

Abstract

Aquaculture is a global practice that entails the breeding of different fish species. It isincessant in the Nigerian community as wastewater released from pond farms intosurrounding drainages and water bodies cause pollution. In this study, a comparativeanalysis of the physico-chemical parameters (temperature, pH, salinity, conductivity,Dissolved Oxygen (DO) and Biological Oxygen Demand (BOD), and microbial evaluation ofwastewater samples from concrete, plastic, wooden and earthen fish ponds located in Ogunand Lagos states followed with antibiotics sensitivity profile of the isolates wereinvestigated. The values of temperature, pH, salinity, conductivity, DO and BOD of thewastewaters ranged from 23.83 – 24.67 °C, 6.57 – 9.68, 0.08 – 0.26 ppt, 65.67 – 200.7μS/cm, 0.67 – 1.63 mg/L and 36.67 – 253.3 mg/L, respectively. Aerobic plate count andcoliform count of bacteria isolated from different fish ponds wastewaters ranged from6.40x105 to 4.20x106 cfu/mL and 2.80x103 to 1.98x105 cfu/mL, respectively. Enterococcusspp., Staphylococcus spp, Streptococcus spp., and Micrococcus spp., Aeromonas spp.,Chromobacterium spp., Escherichia spp., Klebsiella spp. Listeria spp., Pseudomonas spp.,Proteus spp., Providencia sp., Shigella sp., and Salmonella spp. were isolated from differentponds wastewaters. All selected bacterial isolates were susceptible to ciprofloxacin withthe exception of Streptococcus sp., Chromobacterium sp. and Providencia sp. Antibioticssusceptibility pattern of isolated bacteria showed that most of the isolates had very highrate of resistance to the common antibiotics which could pose danger to the environment.The results obtained from this study suggests that control of wastewater release from fish-pond farms to environment is necessary in other to maintain a stable environment, therebyreducing pollution.

(PDF) Physicochemical and Microbial Evaluations of Different Fish Ponds' Wastewaters and the Antibiotics Profiles of Isolated Bacteria. Available from: https://www.researchgate.net/publication/348310907_Physicochemical_and_Microbial_Evaluations_of_Different_Fish_Ponds'_Wastewaters_and_the_Antibiotics_Profiles_of_Isolated_Bacteria [accessed Jun 15 2022].