Evaluation of tropical water sources and mollusks in southern Brazil using microbiological, biochemical, and chemical parameters

Souza, Dóris Sobral Marques; Ramos, Ana Paula; Nunes, Fabrício Flores; Moresco, Vanessa; Taniguchi, Satie; Leal, Diego Averaldo Guiguet; Sasaki, Silvio Tarou; Bı́cego, Márcia Caruso; Montone, Rosalinda Carmela; Durigan, Maurício; Teixeira, Adriano Luiz; Pilotto, Mariana Rangel; Delfino, Nicésio; Franco, Regina Maura Bueno; Melo, Cláudio; Bainy, Afonso Celso Dias; Barardi, Célia Regina Monte

doi:10.1016/j.ecoenv.2011.09.018

Cited by 87 publications

(53 citation statements)

References 46 publications

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“…Virus can remain infectious and at the high concentration in the tissues of mollusks enabling their transmission and causing diseases when consumed raw or undercooked. Studies carried out in Florianopolis (Brazil) demonstrated the presence of HAV, rotavirus, poliovirus and adenovirus in mollusks Vinatea et al 2002;Rigotto et al 2003;Souza et al 2012). Muniain-Mujika et al (2003) evaluated shellfish from Alfacs Bay, Mediterranean Sea, and material from sewage treatment plant in Spain and detected human adenoviruses, enteroviruses and HAV in 47%, 24%, and 19% of the samples, respectively.…”

Section: Waterborne Viral Pathogensmentioning

confidence: 99%

Waterborne Viral Pathogens: Detection, Control and Monitoring of Water Quality for Human Consumption

Faccin-Galhardi¹,

Lopes²,

Espada³

et al. 2013

VR&R

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The viral contamination of water for human consumption is a common cause of diseases outbreaks, therefore, a matter of great relevance for public health, especially in developing countries. In most countries, legislation recommends the study of coliforms to indicate the potability of water, however, this is not correlated with the presence of virus. The present review sought to characterize the epidemiological importance of waterborne viral diseases and the limitations of laboratorial detection and elimination of these pathogens. Besides, the state of art of virus as a tool to assess the quality of the water, as well as, the use of a single virus as the indicator of environmental contamination by virus itself are presented. Reports have demonstrated that some viruses are resistant to conventional water treatment process. Changes in water treatment policy should be achieved, and, should involve viral detection and resistance to physical and chemical agents, amongst other methods. However, we have to bear in mind that the decrease of waterborne infectious diseases is greatly dependent upon the improvement of sanitation, water treatment, together with preventive measures. All those measures together could ensure appropriate conditions for the promotion of human health and the reduction of environmental impacts.

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Section: Waterborne Viral Pathogensmentioning

confidence: 99%

Waterborne Viral Pathogens: Detection, Control and Monitoring of Water Quality for Human Consumption

Faccin-Galhardi¹,

Lopes²,

Espada³

et al. 2013

VR&R

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“…In this context, recent research has focused on the effects of pesticides on organisms such as bivalve molluscs (Souza et al, 2012), fish (Kafilzadeh 2015;Choi et al, 2016;Jürgens et al, 2016), bees (Como et al, 2017), birds (Yohannes, 2017), and humans (Lozano-Paniagua et al, 2016;Rodriguéz et al, 2016). Another research line is related to environmental diagnoses in mangroves (Wu et al, 2015), bays (Combi et al, 2014), seas (Ragab et al, 2016;Jin et al, 2017), lakes (Bettinetti et al, 2016;Liu et al, 2016;Yuan et al, 2017), and rivers Rasmussen et al, 2015;Oliveira et al, 2016;Montuori et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Organoclorated and Organophosphorus Pesticides in the Pelotas River Sediment

et al. 2018

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“…The filtration capacity of C. rhizophorae (approximately 5 L of water per hour) allows for the retention of 75% of environmental bacteria resistant to enzymatic degradation that survive the digestive process (Barros et al, 2005). Therefore, the microbiological quality of oysters is closely related to the sanitary conditions of water, and can be seriously affected by untreated effluents from urban or rural areas (Souza et al, 2012). The anthropic impact and water pollution destabilize the microorganism population (La Valley et al, 2009), which is essential for the maintenance of health by inhibiting the pathogen colonization in oysters (Trabal et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Microbiological quality and bacterial diversity of the tropical oyster Crassostrea rhizophorae in a monitored farming system and from natural stocks

et al. 2015

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ABSTRACT. Microbiological evaluation is one of the most important parameters for analyzing the viability of an oyster farming system, which addresses public health and ecological concerns. Here, the microbiological quality of the oyster Crassostrea rhizophorae cultivated in a monitored environment and from natural beds in Bahia, northeastern Brazil, was determined. Bacterial diversity in oysters was measured by polymerase chain reaction-denaturing gradient gel electrophoresis. Sequence analysis revealed that most bacterial species showed similarity with uncultured or unidentified bacteria from environmental samples, and were clustered into the phylum Proteobacteria. Diverse bacteria from cultivated (monitored) oyster samples were grouped in the same cluster with a high similarity (2015) index (above 79%). Microbiological analyses revealed that these oysters did not contain pathogens. These results reflect the natural balance of the microbial communities essential to the maintenance of health and in inhibiting pathogen colonization in the oyster. On the other hand, bacterial diversity of samples from native stocks in extractive areas displayed a similarity index varying between 55 and 77%, and all samples were clustered separately from each other and from the cluster of samples derived from the cultivation area. Microbiological analyses showed that oysters from the extractive area were not fit for human consumption. This reflected a different composition of the microbial community in this area, probably resulting from anthropic impact. Our study also demonstrated that low temperatures and high rainfall limits the bacterial concentration in tropical oysters. This is the first study analyzing the total bacterial community profiles of the oyster C. rhizophorae.

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Evaluation of tropical water sources and mollusks in southern Brazil using microbiological, biochemical, and chemical parameters

Cited by 87 publications

References 46 publications

Waterborne Viral Pathogens: Detection, Control and Monitoring of Water Quality for Human Consumption

Waterborne Viral Pathogens: Detection, Control and Monitoring of Water Quality for Human Consumption

Organoclorated and Organophosphorus Pesticides in the Pelotas River Sediment

Microbiological quality and bacterial diversity of the tropical oyster Crassostrea rhizophorae in a monitored farming system and from natural stocks

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