Microbiological quality of the fish saw (Scomberomorus brasiliensis) and the ice used for its conservation

This study aimed at evaluating the microbiological quality of the saw fish (S. brasiliensis) landed in the city of Raposa (MA) and the ice used in its conservation. Samples of ice and saw fish were subjected to analysis to determine the Most Probable Number (MPN) of coliforms, thermo-tolerants and Escherichia coli. Fish samples were also tested for Staphylococcus coagulase positive, Salmonellaspp. and Aeromonas spp. Fishermen were given a questionnaire with 20 questions concerning the handling of the fish. The ice samples showed unsatisfactory microbiological quality. The saw fish was contaminated with A. hydrophila, which means it could convey this agent to be consumed by the population.

本研究旨在评估在拉波萨市（MA）上岸的巴西锯鳐（S. brasiliensis）及其保鲜用冰的微生物质量。研究人员对冰样与锯鳐样本进行检测，以测定其中大肠菌群、耐热菌及大肠杆菌的最大可能数（Most Probable Number, MPN）。此外，鱼类样本还被用于检测凝固酶阳性葡萄球菌、沙门氏菌属（Salmonella spp.）和气单胞菌属（Aeromonas spp.）的污染情况。研究团队向渔民发放了包含20个问题的问卷，以调研鱼类的处理流程。结果显示，冰样的微生物质量未达合格标准；受试锯鳐样本被嗜水气单胞菌（A. hydrophila）污染，这表明该病原菌可随鱼类被食用而传播给消费人群。