Physical Factors Impacting the Survival and Occurrence of Escherichia coli in Secondary Habitats

Petersen, Fritz; Hubbart, Jason A.

doi:10.3390/w12061796

Cited by 43 publications

(36 citation statements)

References 67 publications

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“…In low-order streams of the Alabama coastal forest, E. coli levels were found in to be as high as those of urban streams following storms that result in sewer overflow [90,92]. Decreases in base flow result in greater concentrations of pathogens per mL, which increases the chance of the consumption of disease-causing loads of pathogens by animals [93]. Increases in surface water temperatures can also increase the risk of pathogen transmission as warmer temperatures facilitate higher pathogen survival and growth [93].…”

Section: Impacts Of Wild Pigs: Water Qualitymentioning

confidence: 99%

“…Decreases in base flow result in greater concentrations of pathogens per mL, which increases the chance of the consumption of disease-causing loads of pathogens by animals [93]. Increases in surface water temperatures can also increase the risk of pathogen transmission as warmer temperatures facilitate higher pathogen survival and growth [93]. Additionally, the consumption of aquatic invertebrates by wild pigs can also result in changes to nutrient cycling in streams, which can further support pathogen survival and prevalence in surface waters [29,30].…”

Section: Impacts Of Wild Pigs: Water Qualitymentioning

confidence: 99%

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Invasive Wild Pigs: A Significant Disturbance in Coastal Forests

Bradley¹,

Lockaby²

2021

Forests

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Introduced in ~59 countries and native across Europe and Asia, wild pigs, Sus scrofa, are the most wide-spread swine species in the world. As ecosystem engineers, wild pigs are a significant source of disturbance in introduced ecosystems due to their numerous, complex impacts on ecosystem processes. Wild pigs are often found in the resource-rich habitat of coastal forests. Coastal forests are complex, dynamic systems with tremendous biodiversity. Exposed to recurrent disturbances, the biophysical characteristics of coastal forests contribute to their ability to return to their original state post-disturbance. However, compounding disturbances can weaken this ability and threaten the health and function of the ecosystem. In this review, through the model of the forests of the southeastern United States Coastal Plain, we (1) describe conditions found across the forested coastal landscape, (2) describe wild pig disturbance, and (3) discuss how wild pig impacts can add to significant anthropogenic and climate-related disturbances threatening coastal forests. Through this review, we find that the impacts of wild pig disturbance on coastal forests often have similar effects as anthropogenic and climate change-related disturbances that may enhance these significant threats to coastal forest function and resiliency.

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Section: Impacts Of Wild Pigs: Water Qualitymentioning

confidence: 99%

Section: Impacts Of Wild Pigs: Water Qualitymentioning

confidence: 99%

Invasive Wild Pigs: A Significant Disturbance in Coastal Forests

Bradley¹,

Lockaby²

2021

Forests

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“…Once coliform bacteria are present in the water, dense fish stocks, richness of nutrients in the water and high temperatures all together may stimulate the growth of bacteria (Petersen and Hubbart, 2020). After slaughter, the coliforms often remain on the fish, as shown for Hilsa fish (Tenualosa ilisha) (Foysal et al, 2019).…”

Section: Total Coliforms and E Colimentioning

confidence: 99%

Microbial water quality in pangasius and tilapia aquaculture systems in five regions of Bangladesh

Islam¹,

Ahsan²,

Haque³

et al. 2021

MJM

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Aims: To determine abundance of potential pathogenic microorganisms in pangasius and tilapia farms in five major fishproducing areas in Bangladesh by PCR approaches. Methodology and results: Important microbial water quality indicators were studied in water of 38 fish farms producing pangasius (Pangasianodon hypophthalmus) and tilapia (Oreochromis niloticus) in five major fish-producing areas of Bangladesh. The parameters included physicochemical data and PCR detection of total coliforms and E. coli, species of potentially pathogenic Vibrio, and cyanobacterial genes encoding the toxins microcystin and saxitoxin. Quantitative PCR showed that coliform bacteria occurred in all fish farms with densities from one to 2.2 × 10 5 per mL, while E. coli ranged from none to 5.0 × 10 4 per mL. Numbers of total coliforms and E. coli were higher in pangasius farms than in tilapia farms, and when high abundances occurred, coliform bacteria and E. coli bacteria co-varied. Detection of Vibrio-specific genes indicated presence of Vibrio species in 76% of the farms and included V. vulnificus and V. cholerae. The human pathogen type of V. cholerae (carrying the ctxA gene) and the fish pathogen V. parahaemolyticus were not detected. The microcystin-encoding mcyE gene ranged from undetectable to 2.6 × 10 5 copies per mL and tended to be highest in pangasius farms. The saxitoxin-encoding gene sxtA was not found in any of the farms. Conclusion, significance and impact of study: Based on the high abundance of especially coliform bacteria and E. coli, we recommend more efficient water quality monitoring systems to improve detection and control of fecal coliforms and to reduce presence of microcystin-producing cyanobacteria in aquaculture farms in Bangladesh.

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“…Quarterly principle component analysis (PCA) biplots indicated temporal variability in land use impacts on E. coli and SPM concentrations, with agricultural land use being closely correlated with both pollutants during spring and summer quarters but not fall and winter quarters. Finally, Petersen and Hubbart [20] provided an overview of factors known to impact the survival of E. coli in the environment. Findings indicated (1) large knowledge gaps regarding environmental factors influencing E. coli's survival in the environment, and (2) a lack of implemented management strategies assessed at larger field scales, thus leaving their actual impact(s) largely unknown.…”

Section: Fresh Water Pollutants Of Concernmentioning

confidence: 99%

Integrated Water Resources Research: Advancements in Understanding to Improve Future Sustainability

Hubbart

2020

Water

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Anthropogenic and natural disturbances to freshwater quantity and quality is a greater issue for society than ever before. To successfully restore water resources in impaired watersheds requires understanding the interactions between hydrology, climate, land use, water quality, ecology, social and economic pressures. Current understanding of these interactions is limited primarily by a lack of innovation, investment, and interdisciplinary collaboration. This Special Issue of Water includes 18 articles broadly addressing investigative areas related to experimental study designs and modeling (n = 8), freshwater pollutants of concern (n = 7), and human dimensions of water use and management (n = 3). Results demonstrate the immense, globally transferable value of the experimental watershed approach, the relevance and critical importance of current integrated studies of pollutants of concern, and the imperative to include human sociological and economic processes in water resources investigations. Study results encourage cooperation, trust and innovation, between watershed stakeholders to reach common goals to improve and sustain the resource. The publications in this Special Issue are substantial; however, managers remain insufficiently informed to make best water resource decisions amidst combined influences of land use change, rapid ongoing human population growth, and changing environmental conditions. There is thus, a persistent need for further advancements in integrated and interdisciplinary research to improve scientific understanding, management and future sustainability of water resources.

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Physical Factors Impacting the Survival and Occurrence of Escherichia coli in Secondary Habitats

Cited by 43 publications

References 67 publications

Invasive Wild Pigs: A Significant Disturbance in Coastal Forests

Invasive Wild Pigs: A Significant Disturbance in Coastal Forests

Microbial water quality in pangasius and tilapia aquaculture systems in five regions of Bangladesh

Integrated Water Resources Research: Advancements in Understanding to Improve Future Sustainability

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