Comparison of Microbial Load Associated with Smoked Fish (Chrysichthys Nigrodigitatus) from Oyan Lake and Ogun Waterside in Ogun State, Nigeria

Abstract

This study compares the microbial load associated with smoked fish (Chrysichthys nigrodigitatus) from Oyan lake and Ogun waterside in Ogun State. Three samples each were purchased from Lafenwa and Makun-omi markets respectively. Microbial load in the skin, intestine and gills were assessed using Mac-conky Agar (MA), and Nutrient Agar (NA) to isolate bacteria while Sabouraud Dextrose Agar (SDA) was used to isolate fungi. The average bacterial counts for all the samples ranged from 3.1 x10 6 to 4.9 x10 6 in makun market while 6.8 x10 6 to 13.8 x10 6 in lafenwa market has the highest bacteria count. The microorganism isolated and identified in the markets include the following families of bacteria: Bacillus spp (10%, 10%), Micrococcus spp (10%, 10%), Staphylococcus saprophyticus (5%, 10%), Escherichia coli (10%, 15%) and Staphylococcus aureus (5%, 10%) of which Staphylococcus saprophyticus, Escherichia coli and Staphylococcus aureus percentage occurrence rate were higher in lafenwa market.

A Study of Conflict Issues Affecting Ugandan Housemaids who Migrate to Saudi Arabia and How to Mitigate them

March 10, 2026

This study aims to comprehensively analyse the complex interplay between