Bacteria and viruses — indicators of environmental changes occurring in estuaries

Bacteriological indicators of tropical water quality

“…Mara and Oragui (1985) have done very useful work in this direction. Other workers have also made their own significant contributions (Cabelli et al, 1976;Lupo et al, 1977;Berg and Metcalf, 1978;Colwell, 1978;Bisson and Cabelli, 1979;Resnick and Levin, 1981). In those studies, due consideration was given to two major factors: the type of microorganisms and the suitability of the media.…”

“…The most widely used indicators are the coliform bacteria-the total coliforms that got narrowed down to the fecal coliforms, and the fecal streptococci. For various reasons, there has been growing dissatisfaction and loss of confidence in the continued use of these two groups of organisms as the conventional indicators of fecal pollution of water (Dutka, 1973;Fugate et al, 1975;WHO, 1980;Colwell, 1978).…”

Avaliação da qualidade higiênico-sanitária da água de poços rasos localizados em uma área urbana: utilização de colifagos em comparação com indicadores bacterianos de poluição fecal

“…Os coliformes totais, coliformes fecais e estreptococos fecais podem ser utilizados como indicadores de poluição fecal na água 3 . Todavia, existem autores que afirmam que a pesquisa dessas bactérias não se constitui bom indicador de contaminação da água por vírus entéricos 3,26 .…”

“…Todavia, existem autores que afirmam que a pesquisa dessas bactérias não se constitui bom indicador de contaminação da água por vírus entéricos 3,26 .…”

Influence of a Salt Water Regulator on the Survival Response of Salmonella Paratyphi in Vembanadu Lake: India

“…In general, the major environmental factors influencing the enteric bacterial survival following their exposure to aquatic environments are water temperature (Anderson et al, 1983), adsorption and sedimentation processes (Auer & Niehaus, 1993), sunlight action (Sinton et al, 1999), lack of nutrients (Sinclair & Alexander, 1984), predation by bacteria or protozoa (Hahn & Hofle, 2001), bacteriophage lysis (Ricca & Cooney, 1999), competition with autochthonous microbiota (McCambridge & McKeekin, 1981) and antibiosis (Colwell, 1978).…”