This study was aimed at characterizing microbiologically Gilthead sea bream (Sparus aurata) and Sea bass (Dicentrarchus labrax) produced in two estuarine ecosystems in Andalusia (Spain): the estuary of the river Guadalquivir (La Puebla del Río, Sevilla) (A), and the estuary of the river Guadiana (Ayamonte, Huelva) (B). The collected fish individuals and water were analysed for hygiene indicator microorganisms and pathogens. The statistical analysis of results revealed that microbial counts for the different microbiological parameters were not statistically different for fish type. On the contrary, considering anatomic part, viscera showed significantly higher concentrations for Enterobacteriaceae, total coliforms and for Staphylococcus spp. coagulase +. Furthermore, location A showed in water and fish higher levels for lactic acid bacteria, aerobic mesophilic bacteria, Enterobacteriaceae, total coliforms and Staphylococcus spp. coagulase +. Neither Listeria monocytogenes, nor Salmonella spp. were detected, though Vibrio parahaemolyticus was identified, molecularly, in estuarine water in location B. The predictive analysis demonstrated that the initial microbiological quality could have an impact on product shelf-life, being longer for location B, with better microbiological quality. Results stress the relevance of preventing the microbiological contamination of water in estuary production systems in order to assure the quality and safety of Gilthead sea bream and Sea bass.

中文翻译：

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在安达卢西亚（西班牙）的河口生态系统中，研究水产养殖的金头鲷（Sparus aurata）和鲈鱼（Dicentrarchus labrax）的微生物质量，食源性病原菌的流行和产品的保质期。

这项研究的目的是鉴定在安达卢西亚（西班牙）的两个河口生态系统中产生的金头鲷（Sparus aurata）和鲈鱼（Dicentrarchus labrax）的生物学特性：瓜达基维尔河（La Puebla delRío，塞维利亚）的河口（A），和瓜迪亚纳河（Ayamonte，Huelva）的河口（B）。分析收集的鱼类个体和水的卫生指标微生物和病原体。结果的统计分析表明，不同微生物参数的微生物计数在鱼类类型上无统计学差异。相反，考虑到解剖部分，内脏对肠杆菌科，大肠菌群和葡萄球菌属的浓度明显较高。凝固酶+。此外，位置A在水和鱼类中显示出较高水平的乳酸菌，好氧嗜温菌，肠杆菌科，大肠菌群和葡萄球菌属。凝固酶+。李斯特菌和沙门氏菌均无。尽管在位置B的河口水中从分子上鉴定出副溶血性弧菌，但仍能检测到。预测分析表明，最初的微生物质量可能会影响产品的保质期，位置B会更长，微生物质量更好。结果强调了防止河口生产系统中水受到微生物污染的重要性，以确保金头鲷和鲈鱼的质量和安全性。分子分析，在位置B的河口水中。预测分析表明，初始微生物质量可能会影响产品的保质期，对于位置B而言更长，微生物质量更好。结果强调了防止河口生产系统中水受到微生物污染的重要性，以确保金头鲷和鲈鱼的质量和安全性。从分子角度看，在位置B的河口水中。预测分析表明，初始微生物质量可能会影响产品的保质期，位置B的微生物更长，微生物质量更好。结果强调了防止河口生产系统中水受到微生物污染的重要性，以确保金头鲷和鲈鱼的质量和安全性。