Combarro M P, Sueiro R A, Araújo M, Pardo F, Garrido M J
Departamento de Microbiología y Parasitología (Area Microbiología), Facultad de Farmacia, Universidad de Santiago, España.
Microbiologia. 1993 Apr;9(1):14-27.
The presence of bacterial indicators of fecal pollution and V. parahaemolyticus in the estuary of Ares-Betanzos (ría de Ares-Betanzos, NW of Spain) was investigated. Resistance patterns of coliform bacteria to eight antibacterial agents were also determined. In general, high numbers of indicator bacteria were found; for instance, heterotrophic bacteria ranged between 1.82 x 10(2) to 1.9 x 10(4) CFU/ml and up to 4.6 x 10(3)/100 ml fecal coliforms in surface waters and 1.2 x 10(4)/100 ml fecal streptococci in sediment could be found. Surface waters of sampling points 2 and 7, located at the inner part of the estuary, were more polluted than the corresponding ones in the mouth (sampling points, 1, 3, 4 and 9), whereas the sediment showed just the opposite distribution. An 88.5% of isolated coliforms were resistant to one or more antibacterial agents. The MAR index points to urban wastewaters as the probable origin of pollution. The low incidence of V. parahaemolyticus and the lack of correlation with any of the fecal indicator bacteria determined, discard its use as indicative of fecal pollution in marine environments.
对西班牙西北部阿雷斯 - 贝坦索斯河口（阿雷斯 - 贝坦索斯里亚湾）粪便污染的细菌指标和副溶血性弧菌的存在情况进行了调查。还测定了大肠菌群对八种抗菌剂的耐药模式。总体而言，发现指示菌数量较多；例如，地表水的异养细菌数量在1.82×10²至1.9×10⁴CFU/ml之间，粪便大肠菌群高达4.6×10³/100ml，沉积物中的粪链球菌可达1.2×10⁴/100ml。位于河口内部的采样点2和7的地表水比河口口部（采样点1、3、4和9）的相应地表水污染更严重，而沉积物的情况则相反。88.5%的分离大肠菌群对一种或多种抗菌剂耐药。MAR指数表明城市废水可能是污染来源。副溶血性弧菌的低发生率以及与所测定的任何粪便指示菌均无相关性，排除了将其用作海洋环境中粪便污染指示菌的可能性。
