A malacological survey in the Manso Power Plant, State of Mato Grosso, Brazil: new records of freshwater snails, including transmitters of schistosomiasis and exotic species

Fernandez, Mônica Ammon; Mattos, Aline Carvalho de; Silva, Elizangela Feitosa da; Santos, Sonia Barbosa dos; Thiengo, Silvana Carvalho

doi:10.1590/0037-8682-0138-2014

Cited by 17 publications

(13 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Our findings agree with previous filed studies that showed the impact of wet/dry seasons on planorbid populations (Barbosa & Barbosa 1994, Camara et al 2012, Fernandez et al 2014. Table 4 suggests that rainfall rather than temperature is a determining factor in the colonization of B. tenagophila.…”

Section: Resultssupporting

confidence: 92%

The current distribution pattern of Biomphalaria tenagophila and Biomphalaria straminea in the northern and southern regions of the coastal fluvial plain in the state of São Paulo

et al. 2015

View full text Add to dashboard Cite

We analyze the current distribution of snails from genus Biomphalaria in the north and south of the coastal fluvial plain in the state of São Paulo, which is part of a large coastal floodplain. Data from twenty-nine collection sites confirmed that the freshwater body in both regions is colonized by Biomphalaria tenagophila and Biomphalaria straminea, which are natural intermediate hosts of Schistosoma mansoni. The abundance of B. straminea in collection sites where only B. tenagophila had previously been recorded indicates the potential for B. straminea to expand in the region. While quantitative analysis of the number of specimens per species showed that local growth of B. tenagophila populations occurs during periods with little rainfall, there is a greater risk of B. tenagophila populations spreading between different water bodies during rainy periods, when heavy rainfall results in water levels rising in the main rivers and flooding caused by water flowing from the Serra do Mar mountain range to the coastal plain. The temperature increase caused by global climate changes and the consequent increasing frequency of high-water levels and floods can be expected to affect the distribution of these snails on the coastal fluvial plain, leading to the risk of a change in the autochthonous transmission pattern of schistosomiasis in the region.

show abstract

Section: Resultssupporting

confidence: 92%

The current distribution pattern of Biomphalaria tenagophila and Biomphalaria straminea in the northern and southern regions of the coastal fluvial plain in the state of São Paulo

et al. 2015

View full text Add to dashboard Cite

show abstract

“…Similarly, the "Planorbids Survey Project" developed in recent years generated samples from several Brazilian states: Rio de Janeiro (Thiengo et al, 2001;Thiengo et al, 2002ab;Thiengo et al, 2004ab;Thiengo et al, 2006), Maranhão (Cantanhede et al, 2014), Pernambuco and Rio Grande do Norte (Favre et al, 2016), besides Minas Gerais, Bahia and Paraná. Other projects made it possible to obtain samples from biotypes that do not exist anymore, as a result of important environmental changes that happened at those sites, as for example in the Tocantins, Goiás, and Minas Gerais States Fernandez et al, 2014), where hydropower plants were built, submerging innumerous streams and natural lakes.…”

Section: Resultsmentioning

confidence: 99%

The Oswaldo Cruz Institute Mollusk Collection: Improvements on Diversity and Infrastructure Over the Last Years

Gomes

Fernandez

Silva

et al. 2017

ACMAR

Self Cite

View full text Add to dashboard Cite

Este estudo teve como objetivo analisar a Coleção de Moluscos do Instituto Oswaldo Cruz (CMIOC) em relação à diversidade das famílias e à distribuição geográfica dos lotes, além de divulgar as melhorias na sua infraestrutura ao longo dos últimos anos. Atualmente possui 10.102 lotes de gastrópodes de água doce (17 famílias; incluindo síntipos e topótipos) e terrestres, além de bivalves. Planorbidae é a família mais representada (6.330 lotes), sendo Biomphalaria straminea a espécie com maior número de lotes (1.084 lotes), seguida de B. glabrata (612 lotes) e B. tenagophila (581 lotes). A segunda família mais representada é Ampullariidae (1.255 lotes). Embora a CMIOC possua apenas 181 lotes de gastrópodes terrestres, há exemplares de 23 famílias, sendo Subulinidae (59 lotes), Bulimulidae (16 lotes) e Succineidae (24 lotes) as mais bem representadas. A CMIOC possui exemplares de um total de 61 países, principalmente do Brasil (8.760 lotes), provenientes de todos os 26 Estados brasileiros, além do Distrito Federal. Dentre os estados, o mais bem representado é o Rio de Janeiro, com amostras de todos os 92 municípios (1647 lotes). Melhorias na infraestrutura incluem novas salas, armários, equipamentos e pessoal, obtidos através do comprometimento institucional e de aporte de recursos financeiros, tanto institucional quanto externo. A CMIOC tem notoriamente desempenhado um papel importante na Malacologia, principalmente para a saúde pública e a biodiversidade, tendo um grande potencial para expandir e contribuir para outras diversas áreas do conhecimento.

show abstract

“…In Brazil, currently, the evaluation of the impact of water projects in relation to schistosomiasis has been limited to studies on the introduction of intermediate hosts 8,24,26 . Studies that demonstrate the presence of S. mansoni infections in resident and floating populations are scarce, especially in the construction phase of these projects.…”

Section: Discussionmentioning

confidence: 99%

Detection of schistosomiasis in an area directly affected by the São Francisco River large-scale water transposition project in the Northeast of Brazil

Filho

Pinheiro

Sousa

et al. 2017

Rev. Soc. Bras. Med. Trop.

View full text Add to dashboard Cite

Introduction: The development of the São Francisco River Integration Project [Projeto de Integração do Rio São Francisco (PISF)] in the State of Ceará, Brazil, has resulted in environmental and socioeconomic changes with potential risks to public health. We aimed to determine the presence of Schistosoma mansoni infections in schoolchildren (aged 7-14 years) and workers from the construction site in an area under the direct influence of the PISF in the municipality of Brejo Santo-CE, to aid in the prevention and control of schistosomiasis. Methods: We conducted a cross-sectional study using two S. mansoni-detection methods: detection of S. mansoni eggs by the Kato-Katz parasitological method in stool samples (assessed in triplicate for each sample) and S. mansoni circulating cathodic antigen by the point-of-care immunochromatographic rapid test (POC-CCA) in urine. Results: In general, the positivity rates for S. mansoni detection were 1.9% (2/106) among schoolchildren and 2.9% (4/138) among workers. No child had evidence of S. mansoni eggs in their stools; 1.9% tested positive by the POC-CCA method. Among workers, two (1.4%) tested positive by the Kato-Katz test and three (2.2%) by the POC-CCA test. If the POC-CCA test results that were scored as traces were considered negative, then the positivity rates dropped to 0.9% and 0.7% for schoolchildren and workers, respectively. Conclusions: The active transmission of schistosomiasis in a region covered by the PISF was recognized, reinforcing the necessity to consolidate surveillance and control actions, as well as structural sanitation measures to reverse the social determinants of the disease.

show abstract

A malacological survey in the Manso Power Plant, State of Mato Grosso, Brazil: new records of freshwater snails, including transmitters of schistosomiasis and exotic species

Cited by 17 publications

References 26 publications

The current distribution pattern of Biomphalaria tenagophila and Biomphalaria straminea in the northern and southern regions of the coastal fluvial plain in the state of São Paulo

The current distribution pattern of Biomphalaria tenagophila and Biomphalaria straminea in the northern and southern regions of the coastal fluvial plain in the state of São Paulo

The Oswaldo Cruz Institute Mollusk Collection: Improvements on Diversity and Infrastructure Over the Last Years

Detection of schistosomiasis in an area directly affected by the São Francisco River large-scale water transposition project in the Northeast of Brazil

Contact Info

Product

Resources

About