Inter-relationships between Bacteriological and Chemical Variations in Lake Pamvotis—Greece

Kagalou, Ifigenia; Tsimarakis, G.; Bezirtzoglou, Eugenia

doi:10.3402/mehd.v14i1.8214

Cited by 4 publications

(2 citation statements)

References 10 publications

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“…These results vary with the results of recently previous study on tilapia fish taken from Manzala Lake of Damietta Governorate which concluded that TBC mean for tilapia fish ranged from 0 to 4400×10 3 CFUg -1 in different seasons [43]. This contrast might ascribe to the differences in space and time of the bacterial counts and the chemical parameters [44].…”

Section: Discussioncontrasting

confidence: 99%

Evaluation of bacterial quality of Oreochromis niloticus samples of Lake Manzala, Egypt

El-ghannam

Hanora

Abdulla

et al. 2020

Alfarama Journal of Basic & Applied Sciences

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The present study aimed to investigate bacterial quality of tilapia fish (Oreochromis niloticus) and evaluate the hygienic health hazard of fish contaminated with some food borne pathogens. Bacteria were isolated from intestine, gills and flesh of Oreochromis niloticus collected from Lake Manzala during two seasons; winter and summer, 2017. Microbiological studies was applied for all samples as total viable bacteria, total coliform, faecal coliform, faecal streptococcus and examined for the presence of Pseudomonas sp. Results show that total viable bacterial count mean was highest in intestine 222 x 10 4 CFUg-1 in summer. Total coliform count mean was highest in intestine 425 x 103 CFUg-1 in summer. Faecal coliform count mean was highest in gills 90 x 10 2 CFUg-1 in summer. Faecal streptococcus detected in fish organs only in summer. P. aeruginosa count mean was highest in intestine 185 x 10 2 CFUg-1 in summer. Molecular identification of suspected colonies was as DNA extraction, PCR technique using ISSR protocol and sequencing, using the nucleotide sequences of the genes for 16S rRNA revealed different strains of Pseudomonas aeruginosa. All isolates were tested for resistance to 10 groups of antibiotics namely Tetracycline (10μg), Gentamicin (10μg), Ampicillin (10μg), Trimethoprim/Sulphamethoxazole (25μg), Vancomycin (30μg), Erythromycin (15μg), Ciprofloxacin (30μg), Chloramphenicol (30μg), Amoxicillin (10μg) and Rifampicin (5μg) using Kirby-Bauer disc diffusion method. The results showed high frequency of multi-drug resistance to many antibiotics, particularly penicillin, ampicillin and chloramphenicol. Therefore this fish species caught from the Lake Manzala may pose health hazards to human and the whole ecosystem.

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Section: Discussioncontrasting

confidence: 99%

Evaluation of bacterial quality of Oreochromis niloticus samples of Lake Manzala, Egypt

El-ghannam

Hanora

Abdulla

et al. 2020

Alfarama Journal of Basic & Applied Sciences

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“…The negative correlation between the temperature and the non-spore forming indicator bacteria could be explained by the increased die-off of the bacteria (Kagalou, Tsimarakis, & Bezirtzoglou, 2002;Vaatamen, 1980). Concerning the bacteria density of our watery ecosystem C and E, the water content is often removed by the incoming waters and so then, the bacterial populations are not allowed to grow.…”

Section: Discussionmentioning

confidence: 96%

Experimental Effect of Ozone upon Some Indicator Bacteria for Preservation of an Ecologically Protected Watery System

Voidarou

Tzora

Skoufos

et al. 2006

Water Air Soil Pollut

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In the frame of a project concerning the evaluation of the pollution level and the ozone experimental effect upon some bacterial indicators of a protected ecosystem, water samples were estimated microbiologically before and after saturation with ozone gas for 5, 10, 15, 20 and 30 min. We found that the ozone treatment decreased the concentration in all different bacterial indicators by reducing their number for more than six times after 15 min of application. Total inactivation was observed for C. perfringens vegetative cells. Since there are complex relations between the microbial loading the water characteristics and the action of ozone, further studies are needed to determine the optimum conditions of ozone effect, as its use consists of a promising technology.

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Remoción de bacterias coliformes en un sistema de lodos activados y humedal construido

Muñoz-Nava

Baumann

2017

Ecosist. Recur. Agropec.

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El agua residual municipal contiene grandes cantidades de bacterias coliformes, que pueden ser un riesgo para la salud pública y la contaminación ambiental. El objetivo fue evaluar la remoción de coliformes cotales (CT), Escherichia coli (EC) y demanda química de oxígeno (DQO) del agua residual de un sistema a escala piloto con dos tratamientos: un reactor secuencial por lotes (RSL) de lodos activados y un humedal construido de ujo vertical (HCFV). Las concentraciones promedio de CT, EC y DQO en el e uente fueron 8.03X106, 4.13X106 NMP (100 mL)-1 y 528 mg L-1, respectivamente. Los Porcentajes de remoción (PR) promedio fueron de 99.84 % (4.52 unidades log), 99.92 % (4.92 unidades log) y 92.78 % para CT, EC y DQO, respectivamente. La remoción, obtenida con un tiempo de residencia aproximado de 11 h, cumple con la norma mexicana para reúso con contacto directo. El análisis de correlación mostró que la DQO es independiente de CT y EC. Las mediciones del e uente y concentraciones de CT y EC en la salida del HCFV muestran que entre las variables hay asociación. Las concentraciones de CT y EC del HCFV con respecto al tiempo estuvieron sesgadas a la izquierda, lo que concuerda con el comportamiento observado para medios porosos. Las comunidades pueden utilizar este sistema para reusar el agua residual tratada en el riego agrícola.

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Inter-relationships between Bacteriological and Chemical Variations in Lake Pamvotis—Greece

Cited by 4 publications

References 10 publications

Evaluation of bacterial quality of Oreochromis niloticus samples of Lake Manzala, Egypt

Evaluation of bacterial quality of Oreochromis niloticus samples of Lake Manzala, Egypt

Experimental Effect of Ozone upon Some Indicator Bacteria for Preservation of an Ecologically Protected Watery System

Remoción de bacterias coliformes en un sistema de lodos activados y humedal construido

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