Results 241 to 250 of about 3,431,780 (294)

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
openaire   +2 more sources

Rapid and in-situ detection of fecal indicator bacteria in water using simple DNA extraction and portable loop-mediated isothermal amplification (LAMP) PCR methods.

Water Research, 2019
Contamination of water by fecal matter and potential human enteric pathogens is a serious health concern. Microbiological water quality has been assessed by conventional culture-based methods of fecal indicator bacteria (FIB).
Seunguk Lee, Valerie Si Ling Khoo, C. D. Medriano, Taewoo Lee, Sung-Yong Park, Sungwoo Bae   +5 more
semanticscholar   +1 more source

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
openaire   +2 more sources

Indicator bacteria and associated water quality constituents in stormwater and snowmelt from four urban catchments

Journal of Hydrology, 2016
M Viklander
exaly   +2 more sources

Determination of wild animal sources of fecal indicator bacteria by microbial source tracking (MST) influences regulatory decisions.

Water Research, 2018
Fecal indicator bacteria (FIB) are used to assess fecal pollution levels in surface water and are among the criteria used by regulatory agencies to determine water body impairment status. While FIB provide no information about pollution source, microbial
K. Nguyen, Ç. Şenay, S. Young, B. Nayak, A. Lobos, J. Conrad, V. Harwood   +6 more
semanticscholar   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source

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 ...
openaire   +1 more source

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
openaire   +1 more source