Detection and occurrence of indicator organisms and pathogens

Baker, Katherine H.; Hegarty, John P.

doi:10.2175/106143097x134722

Cited by 1 publication

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References 119 publications

(124 reference statements)

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“…Soil biological investigations give information on the impact of environmental conditions on the metabolic activity of soil (Margesin and Schinner, 2005). Fecal pollution from warm-blooded animals including humans poses public health risks due to possible exposure to a wide array of pathogenic bacteria, viruses and protozoa (Baker &Herson, 1999 andFong et al, 2005). Fecal indicator bacteria such as coliforms, Escherichia coli and enterococci have long been used by the water quality monitoring authorities to detect fecal pollution and the presence of potential pathogenic microorganisms.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Some Water Quality Characteristics and Bacterial Contamination in Water, Sediments and Some Fish species of El-Manzala Lake

Abdel-Hamid

2017

Egyptian Journal for Aquaculture

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Water plays a vital role in the proper functioning of earth ecosystem and also essential for fish life. In autumn season, 2016, three different regions from El-Manzla Lake (El-Boughaz, Domiette and El-Ganka) were selected to determine their water quality and bacterial contaminations. Water, sediment and fish samples were collected from four different sites of each region. The selected regions are exposing to direct and indirect industrial, municipal wastewater and agricultural drainage disposals. The results showed that El-Ganka region had significantly (P<0.05) highest nitrogenous compounds (NH 3-N, NO 2 & NO 3), total nitrogen, total and available phosphorus and Chlorophyll a followed by Domiette and then El-Boughaz. While had the significantly (P<0.05) lowest pH and secchi disk (SD). Water exchange between the Mediterranean Sea and the lake led to significant increase values (P<0.05) in its salinity and conductivity at the El-Boughaz region. Also, some bacteriological characteristics (Bacterial count, coliform and some pathogens) in water, sediment and some fish organs (skin, muscle & gills) of Oreochromis niloticus and Clarias gariepinus were determined. Total bacterial count, coliform group, fecal coliform and Vibrio cholera recoded higher values in sediment than in water. Total bacterial count and coliform group in the muscle of the two investigated fish species had lower values than skin and gills, while fecal coliform and vibrio were not detected. Gills recorded higher values than those Assessment of Some Water Quality Characteristics and Bacterial Contamination in Water, Sediments and Some Fish species of El-Manzala Lake 56 in the skin. Muscles of Clarias gariepinus recorded higher levels in all bacterial parameters than the Oreochromis niloticus in contrast the skin and gills. On base of the present study, it could be concluded that Manzala' lake water resources need more attention to be protected for aquaculture purposes and sustainable development through the detection of aquatic biological agents and possible control of water quality.

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Section: Introductionmentioning

confidence: 99%

Assessment of Some Water Quality Characteristics and Bacterial Contamination in Water, Sediments and Some Fish species of El-Manzala Lake

Abdel-Hamid

2017

Egyptian Journal for Aquaculture

View full text Add to dashboard Cite

show abstract

Detection and occurrence of indicator organisms and pathogens

Cited by 1 publication

References 119 publications

Assessment of Some Water Quality Characteristics and Bacterial Contamination in Water, Sediments and Some Fish species of El-Manzala Lake

Assessment of Some Water Quality Characteristics and Bacterial Contamination in Water, Sediments and Some Fish species of El-Manzala Lake

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