Microbial Analysis of Smoked Fish Products Sold in Calabar Municipal Market, Cross River State

Smoked fish is a widely consumed protein source in southern Nigeria, but traditional smoking methods and market conditions may not adequately protect against microbial contamination. This study conducted a microbiological analysis of smoked fish products sold in Calabar Municipal Market, Cross River State, South South Nigeria. Sixty smoked fish samples comprising catfish, tilapia, and herrings were randomly purchased from 20 vendors. Standard microbiological methods including aerobic plate count, Staphylococcus aureus enumeration, and coliform detection were applied. Fungal contamination including mold counts was also assessed. A questionnaire assessed vendor hygiene knowledge and handling practices. Total aerobic plate counts exceeded acceptable limits in 58.3% of samples. Staphylococcus aureus was detected in 41.7% of samples at levels suggesting potential risk of enterotoxin production. Coliform bacteria were found in 35% of samples. Fungi including Aspergillus and Penicillium species were identified in 30% of samples, raising concerns about mycotoxin contamination. Most vendors had no food safety certification, and fish were often stored directly on open surfaces exposed to insects and dust. The study recommends upgrading market storage infrastructure, training of fish vendors, and institution of routine food safety monitoring programs in Calabar markets by local government authorities. Keywords: smoked fish, microbiology, food safety, Calabar market, Cross River State