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3 edition of The survival of coliform bacteria in saline sediments found in the catalog.

The survival of coliform bacteria in saline sediments

Margaret M. Roper

The survival of coliform bacteria in saline sediments

by Margaret M. Roper

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Published by Australian Govt. Pub. Service in Canberra .
Written in English


Edition Notes

Statementby Margaret M. Roper and K.C. Marshall.
SeriesResearch project / Department of National Development, Australian Water Resources Council ;, no. 74/62, Technical paper / Australian Water Resources Council ;, no. 43, Research project (Australian Water Resources Council) ;, no. 74/62., Technical paper (Australian Water Resources Council) ;, no. 43.
Classifications
LC ClassificationsMLCM 91/01861 (Q)
The Physical Object
Paginationix, 65 p. :
Number of Pages65
ID Numbers
Open LibraryOL1606156M
ISBN 100642045178
LC Control Number91143600
OCLC/WorldCa6059580

Coliform bacteria in water supplies can indicate a very recent connection to surface because their survival time in an aquifer on the order of weeks to months (John and Rose ). The presence of. A wide range of climatic, physical, chemical and biological variables relevant to both the sediment and interstitial water are known to affect the abundance and survival of faecal bacteria in.

Sediment can be a reservoir for coliform bacteria released into streams Article in The Journal of General and Applied Microbiology 54(3) June with 30 Reads How we measure 'reads'. Response of coliform populations in streambed sediment and water column to changes in nutrient concentrations in water Article (PDF Available) in Water Research 59C April with

Specific types of coliform bacteria may be tested for, especially after a total coliform bacteria test is positive. These subgroups of coliform bacteria include fecal coliform and Escherichia coli or E. coli. Fecal coliform bacteria are specific to the intestinal tracts of warm-blooded animals, including humans, and thus require a more specific. Graduate Thesis Or Dissertation Survival of fecal coliform bacteria in sludge-amended soils The formation of a sludge crust on a Dayton silt loam caused fecal coliform numbers in the cm soil depth to remain at a constant 10³ cells/g of soil for 11 weeks while numbers in the sludge crust declined from 10⁵ to 10³ cells/g of soil Cited by: 1.


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The survival of coliform bacteria in saline sediments by Margaret M. Roper Download PDF EPUB FB2

While a wealth of information was obtained from such studies, including the negative relationship between salinity and E. coli survival, the persistence of fecal indicator bacteria in environmental waters is affected by a complex array of physical, chemical, and biological factors that are difficult to simulate in the laboratory.

Experiments described in this work were therefore designed to Cited by: EFFECTS OF SEDIMENTS ONTHE SURVIVAL OFE. COLI TABLE 1. Salinity, coliform andfecal coliform values ofcollection sites Salinity Coliformes Fecal coliformsa Site no.

range (g/kg)a Water Sediment Water Sediment 135, ,Cited by: The longer survival of E. coli in the sediment is attributed to the greater content of organic matter present in the sediment than the sweater. These laboratory results, in part, could explain why on a volume basis larger numbers of coliforms and fecal coliforms and fecal coliforms were found in estuarine sediments than the overlaying water at field by: rence and survival of coliform bacteria in the sediments adjacent to marine sewage out- falls.

During the course of an oceano- graphic investigation of Santa Monica Bay, conducted to assist in the design of a new ocean outfall for the city of Los Angeles, studies were made on the occurrence ofCited by: Creek survival of indicator bacteria was determined by sampling creek sediments at the mouth of the drain during dry weather (i.e.

interstorm periods). The mouth (outlet) was chosen as the primary sampling site because creek bed slope within the city makes it the site of greatest by: Creek survival of indicator bacteria was determined by sampling creek sediments at the mouth of the drain during dry weather (i.e.

interstorm periods). The mouth (outlet) was chosen as the primary sampling site because the creek bed slope within the city makes it the site of greatest by: The survival of seeded Escherichia coli in marine sediment was studied by using an enumeration method which detected viable but nonculturable bacteria.

Throughout the duration of the experiment (68 days), the same proportion of E. coli organisms remained culturable, suggesting that sediment provides a favorable, nonstarvation environment for the by: Extended survival of fecal bacteria in sediment can obscure the source and extent of fecal contamination in agricultural settings.

The variability in fecal coliform/fecal streptococci (FC/FS) ratios with time and discrepancies between observable fecal sources and measured FC/FS ratios in shallow surface water from agricultural watersheds may be explained by examining FC and FS mortality rates.

survival in streambed sediment in the presence of manure material will be affected by sediment texture and organic carbon content and (b) to evaluate applicability of the exponential die-off equation to the E. coli survival data in the presence of manure material. Experiments were conducted at three temperatures (4 C, 14 C, and 24 C) in flow.

Extended survival of fecal bacteria in sediment can obscure the source and extent of fecal contamination in agricultural settings. The variability in fecal coliform/fecal streptococci (FC/FS) ratios with time and discrepancies between observable fecal sources and measured FC/ FS ratios in shallow surface water from agricultural watersheds mayCited by: Although the coliforms in the sediments must persist for a sufficiently long period to permit the accumulation of large numbers by deposition from low count waters, no precise estimate of the survival time in the sediment could be by: KING ET AL.

sized that the survival ofthe bacteria uponchlorination was due to attachment to algae. Bacteriaare capable ofintracellular survival andmultipli- cation within protozoa (2, 16, 20, 21). Temperature and bacterial type may determine digestion rates and survival, and survivorship of bacteria in protozoa often correlates with bacterial pathogenicity (20, 63).

Cited by: Get this from a library. The survival of coliform bacteria in saline sediments. [Margaret M Roper; Kevin C Marshall; Australian Water Resources Council.]. Some experiments were carried out to explain thein situ phenomena that the number of coliform organisms decreased rapidly from estuaries to offshore, and also at deeper layer, and that the appearance of coliform types varied.

In natural seawater, experimental results did not show thatEscherichia coli was extinct by ‘self-purification’ or ‘anti-biosis’ action of seawater, but it showed Cited by: 4. Coliform bacteria have been considered as a model for studies on the deposition and survival of microorganisms in estuaries.

These bacteria were deposited in bottom muds of an estuarine system once the salinity exceeded a specific conductivity of mS cm ‐1. Survival of the bacteria appeared to be enhanced in the by: coliforms and E. coli as coliforms).It is common to use oC for detection of E.

coli (1, 2). The method used in the present study corresponds to AOAC's Official Method of Analysis (6). Presumptive and confirmed tests for coliform bacteria were carried out using the.

INTRODUCTION Coliform bacteria are a large assemblage of various species of bacteria that are linked together because of the ease of culturing as a single group. They include both fecal coliform bacteria, or bacteria that are found naturally in the intestinesof warm-blooded animals, non-fecal coliform and by: 5.

The survival of Escherichia coli in bottom sediment (Lake Onalaska, navigation pool no. 7, Mississippi River) was studied by using in situ dialysis culture of sterile (autoclaved) and unsterile sediment by: Microbiological Process Report Factors Affecting the Survival of Bacteria in Sea Water' A.

CARLUCCI AND D. PRAMER Department ofAgricultural Microbiology, Rutgers, The State University, NewBrunswick, NewJersey Received for publication June 3, During recent years, the use of marine outfalls for the disposal of sanitary and industrial wastes has in- creased greatly and information Cited by: Effect of Sunlight on Survival of Indicator Bacteria in Seawater Article (PDF Available) in Applied and Environmental Microbiology 41(3) April with Reads How we measure 'reads'.

This may signify the evolution of enteric bacteria towards a viable but non‐culturable form in seawater when exposed to natural sunlight. The presence of humic acids significantly reduced loss of culturability but only in low salinity conditions.

Salinity appears to be an important factor influencing culturability in bacteria exposed to by: Sediment phosphate levels were important in controlling thermotolerant coliform survival and growth in estuarine sediments (Rowland, ). Toothman et al.

() also observed statistically significant responses of sediment thermotolerant coliforms to phosphate increases in a North Carolina creek, but only at the sites that had the lowest Cited by:   Our presented models in this study can be useful models to anticipate indicator bacteria numbers in marine environment sediments considering sediment texture and grain size.

The orders of indicator bacteria numbers in seawater and sediment samples were HPC > total coliform > fecal coliform > pseudomonas aeruginosa. The concentration levels of indicator bacteria in sampling stations Cited by: 9.