Results 271 to 280 of about 174,544 (303)

The Recovery of Indicator Bacteria on Selective Media

Journal of Applied Bacteriology, 1974
S ummary . The recovery of Pseudomonas aeruginosa, Escherichia coli , and Streptococcus faecalis from aqueous suspending media has been studied ...
A W, Hoadley, C M, Cheng
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Percentage of gelatinolytic bacteria among heterotrophic bacteria as indicator of water quality

Folia Microbiologica, 2004
The relationship between the physiological group of gelatinolytic bacteria and the abundance of heterotrophic bacteria in freshwater ecosystems was described, based on analysis of 1082 different freshwater samples collected in Croatia. Percentages of gelatinolytic bacteria among the population of heterotrophic bacteria showed a significant negative ...
Hrenović, Jasna, Stilinović, Božidar
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Bacteriophages and indicator bacteria in human and animal faeces

Journal of Applied Bacteriology, 1986
In an attempt to explain the presence of F‐specific (RNA) bacteriophages in waste‐water, faecal material from humans and a variety of animals was examined. The phages were detected in appreciable numbers only in faeces from pigs, broiler chickens, sheep and calves but not from dogs, cows, horses and humans. Parallel examinations for somatic coliphages,
Havelaar, AHrivm, Furuse, K, Hogeboom, WM   +2 more
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Health-indicator bacteria in water-surface microlayers

Canadian Journal of Microbiology, 1978
The distribution patterns of a variety of bacteria in the surface microlayer, 20 cm and 100 cm below the surface of rivers, open lake waters, and off docks are presented. Implications of this three-season study are that conventional sampling techniques underestimate the true microbiol densities.
B J, Dutka, K K, Kwan
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Enumeration of Indicator Bacteria Exposed to Chlorine

1983
Stress resulting from a variety of chemical and physical environments has been recognized in indicator bacteria. A review by Busta (1976) summarizes the extensive work that has been carried out to describe indicator microorganisms sublethally impaired due to a variety of causes associated with foods.
G A, McFeters, A K, Camper
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Faecal indicator bacteria at fish farms

Hydrobiologia, 1982
The observed concentrations of bacteria at two large fish farms were not high, but due to the great volume of the discharge the total amount of bacteria was large. Total coliform (TC) bacteria identified belonged mainly to the genera Enterobacter, Citrobacter and Aeromonas. The majority of faecal coliform (FC) strains were Escherichia coli. E. coli was
Maarit Niemi, Irmeli Taipalinen
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Marine bacteria as indicators of water quality

Chemosphere, 1994
Abstract Preliminary results on the concentration of aerobic, heterotrophic marine bacteria, and on its luminescent fraction in plated filters of coastal water samples, both under “clean” and polluted conditions, are reported. The feasibility of the application of such an approach in characterizing the integrity of marine environments, with the ...
Eros Bacci, Mario Bucci, Giancarlo Sbrilli, Lorella Brilli, Fabio Gambassi, Carlo Gaggi   +5 more
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Indicator bacteria in freshwater and marine molluscs

Hydrobiologia, 1984
The freshwater mussel Anodonta cygnea and four marine shellfish (mussels, Mytilus edulis; cockles, Cerastoderma edule; clams, Mya arenaria; Scrobicularia plana) from a total of six sites were surveyed for Escherichia coli, Clostridium perfringens, faecal streptococci, 25 and 37 °C coliforms, 25 °C and 37 °C total viable numbers and fluorescent ...
M. M. Al-Jebouri, D. R. Trollope
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Current Concepts of Indicator Bacteria

1977
Pathogenic bacteria excreted in human feces are found in low counts in wastewater and are known to be more sensitive to environmental conditions than Escherichia coli. The latter, excreted both by humans and warm-blooded animals, are used as an indicator of fecal wastes which may contain the pathogen, but the validity of this practice is often ...
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Anaerobic bacteria as indicators of faecal pollution

Proceedings of the Royal Society of Edinburgh. Section B. Biological Sciences, 1980
SynopsisIn several well-authenticated instances intestinal pathogens, includingSalmonellaspecies, have been isolated from water in the absence of bacteria, such asEscherichia coli,commonly used to detect faecal pollution. The present study examines certain anaerobic, non-sporing commensals of the intestinal tract as alternative ‘indicator’ bacteria ...
D. W. F. Wheater, D. Mara, A. Opara, P. Singleton   +3 more
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