An assessment of fecal indicator and other bacteria from an urbanized coastal lagoon in the City of Los Angeles, California, USA

Dorsey, John H.; Carmona-Galindo, Víctor D.; Leary, Christopher C.; Huh, Julie; Valdez, J. T.

doi:10.1007/s10661-012-2737-3

Cited by 18 publications

(11 citation statements)

References 72 publications

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“…Hill et al () reported that a significant increase in the faecal coliform numbers may be associated with average rainfall amounts. In addition, several papers reported that the measured physico‐chemical variables did not play a significant role in changes in temporal pattern changes of coliforms and E. coli abundance in water (Dorsey et al, ; Perini et al, ). Our findings were consistent with these studies.…”

Section: Discussionmentioning

confidence: 99%

Measurement of antibiotic resistance of microbial species in the Karasu River (Turkey) using molecular techniques

Avşar

2018

Water & Environment J

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The Karasu River (Sinop, Turkey) was sampled for bacteriological analyses and investigation of antibiotic resistance at the bacterial isolates. In the study, the physical properties and numbers of total aerobic (TA), total coliform (TC), faecal coliform (FC), faecal Streptococci (FS) and Escherichia coli in water samples were investigated. E. coli strains were subjected to antibiotic susceptibility testing, antibiotic resistant genes, virulence genes and plasmid DNA analysis and fingerprinting techniques. The bacteriological analysis results showed that the difference between TA, TC, FC and FS numbers (p > 0.05) was not significant for a total of four stations. The Multiple Antibiotic Resistance Index (MARI) values of tested strains were found in range from 0.4 to 0.7. The antibiotic resistance genes of strains; tetA (33.9%), blacym‐2 (12.5%) and cat1 (16.7%) were screened by PCR method. Out of a total of 57 E. coli isolates, 11 E. coli strains were positive for the eae (19.6%) gene, representing atypical EPEC, whilst only one strain was positive for the eae and stx1 (1.7%) gene, representing STEC. Present study has shown that the aquatic environments can be reservoirs of pathogenic E. coli strains. The study also indicated that PCR‐based techniques might especially be helpful in the rapid identification of multidrug‐resistance analysis and virulence genes of strains. Karasu stream, which is important in Sinop province, Turkey, was investigated for the first time in this study in terms of a molecular microbiological perspective.

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Section: Discussionmentioning

confidence: 99%

Measurement of antibiotic resistance of microbial species in the Karasu River (Turkey) using molecular techniques

Avşar

2018

Water & Environment J

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“…The discharge of domestic and industrial wastewaters with the presence of pathogenic microorganisms in the adjacent water frequently threatened the microbiological quality of the water (Aslan-Yilmaz et al 2004;Nduka and Orisakwe 2009;Dorsey et al 2012). The microbiological risks depend on the bacteria concentration in water and on the water usage such as drinking, recreational activities, irrigation, and shellfish harvesting purposes.…”

Section: Introductionmentioning

confidence: 99%

“…Total coliform, fecal coliform, fecal streptococci and enterococci are among the most frequently used microbial indicators of fecal pollution (Malik and Ahmad 2002;Cabral and Marques 2006;Djuikom et al 2006;Kovačić et al 2011). Although not usually harmful themselves, their presence may indicate the possibility of pathogen presence (Bonadonna et al 2002;Dorsey et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Assessment of the characteristic of nutrients, total metals, and fecal coliform in Sibu Laut River, Sarawak, Malaysia

et al. 2014

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The concentrations of nutrients (nitrogen and phosphorus), total metals, and fecal coliform (FC) coupling with chlorophyll-a (chl-a), 5-day biochemical oxygen demand (BOD 5 ) and other general environmental parameters were evaluated at the sub-surface and near-bottom water columns of 13 stations in the Sibu Laut River during low and high slack waters. The results indicated that inorganic nitrogen (mainly nitrate) was the primary form of nitrogen whereas organic phosphorus was the major form of phosphorus. The abundance of total heavy metals in Sibu Laut River and its tributaries was in the order of Pb \ Cu \ Zn \ Cd. Fecal coliform concentration was relatively low along Sibu Laut River. The shrimp farm effluents contributed a substantial amount of chl-a, BOD 5 , nutrients, and FC to the receiving creek except for total metals. Nevertheless, the influence was merely noticeable in the intake creek and amended rapidly along Selang Sibu River and brought minimal effects on the Sibu Laut River. Besides, the domestic sewage effluents from villages nearby also contributed a substantial amount of pollutants.

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“…Rehmann y Soupir (2009) nutrientes que aumentan su persistencia de semanas a meses. De esta forma, el sedimento constituye un reservorio potencial de bacterias fecales y patógenas (Badgley et al 2010) que podrían resuspenderse y volver a la columna de agua por corrientes de marea o distintas actividades humanas (Dorsey et al 2013, Brinkmeyer et al 2015. Esto último podría explicar la similitud de resultados entre aguas y sedimentos en el CN ya que es una zona somera en donde es posible la suspensión continua de bacterias.…”

Section: Resultados Y Discusiónunclassified

EVALUACIÓN DE LA CALIDAD BACTERIOLÓGICA DE Crassostrea gigas IMPLANTADAS EN EL ESTUARIO DE BAHÍA BLANCA, ARGENTINA

Gallicet

Streitenberger

Baldini

2020

Rev. Int. Contam. Ambie.

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La ostra del Pacífico, Crassostrea gigas, fue introducida en muchos ecosistemas costeros de Argentina. Su rango de distribución en el estuario de Bahía Blanca es incierto, existiendo evidencias de su continua expansión. El objetivo de este trabajo fue evaluar la calidad bacteriológica de la ostra en la zona interna del estuario de Bahía Blanca y del agua y sedimentos donde crece. Se establecieron dos estaciones de muestreo: Club Náutico (CN) y Puerto Cuatreros (PC), donde se realizaron 21 campañas entre junio 2015 y junio 2018. Se recolectaron agua subsuperficial, sedimentos superficiales y ostras de la zona intermareal. En las tres matrices se hicieron recuentos de Escherichia coli (Ec) y detección de Vibrio spp. Además, en el tejido de ostras se buscó Salmonella spp. En las dos estaciones, se evidenció la acumulación de Ec en ostras y en sedimentos. Se detectaron altos valores de Ec en las tres matrices y la presencia de salmonelas en CN. En todas las matrices de ambas estaciones se aislaron especies del género Vibrio, incluyendo V. cholerae y V. parahaemolyticus. Los bancos de ostras estudiados en el estuario están en un lugar muy accesible y los animales son de buen tamaño, lo que los hace atractivos para la recolección informal. Sin embargo, de acuerdo con los resultados bacteriológicos, el 66 % de las muestras de ostras de PC y el 100 % de CN no cumplen con la legislación vigente en Argentina, constituyendo un riesgo potencial para la salud humana.

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An assessment of fecal indicator and other bacteria from an urbanized coastal lagoon in the City of Los Angeles, California, USA

Cited by 18 publications

References 72 publications

Measurement of antibiotic resistance of microbial species in the Karasu River (Turkey) using molecular techniques

Measurement of antibiotic resistance of microbial species in the Karasu River (Turkey) using molecular techniques

Assessment of the characteristic of nutrients, total metals, and fecal coliform in Sibu Laut River, Sarawak, Malaysia

EVALUACIÓN DE LA CALIDAD BACTERIOLÓGICA DE Crassostrea gigas IMPLANTADAS EN EL ESTUARIO DE BAHÍA BLANCA, ARGENTINA

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