Results 71 to 80 of about 9,908 (199)

Habitat Structure Shapes Mollusc Assemblages in an Urban Semiarid River: Implications for Conservation and Public Health

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 1, January 2026.
ABSTRACT Fine‐scale environmental drivers shape freshwater mollusc assemblages in urban semiarid rivers. We examined how substrate composition and water chemistry influence mollusc richness and abundance along a polluted stretch of a river in the Brazilian semiarid region. Surveys at five sites recorded 2479 individuals.
Lucas Ariel Sousa Aguiar   +4 more
wiley   +1 more source

Levantamento planorbídico do Estado de São Paulo: sexta Região Administrativa Planorbidic survey of the 6th Administrative Region of the State of S.Paulo, Brazil

open access: yesRevista de Saúde Pública, 1986
Com o objetivo de conhecer a distribuição dos planorbídeos na sexta Região Administrativa do Estado de São Paulo, Brasil, com sede na cidade de Ribeirão Preto, foram realizadas, durante sete meses, coletas de moluscos em ambientes hídricos de toda área ...
Jorge Faria Vaz   +5 more
doaj   +1 more source

Taxonomic Deception via Obvious Traits: Oversplitting in European Vallonia Risso, 1826 (Mollusca: Gastropoda: Valloniidae)

open access: yesZoologica Scripta, Volume 55, Issue 1, Page 37-51, January 2026.
ABSTRACT The status of the six traditionally recognised European Vallonia taxa is considered based on mtDNA and nDNA sequences from five independently sorting loci in combination with morphometric landmark analyses conducted on genetically confirmed shells. These analyses document that only two species are valid (V. costata and V.
Jeffrey C. Nekola   +7 more
wiley   +1 more source

The effect of simulating different intermediate host snail species on the link between water temperature and schistosomiasis risk. [PDF]

open access: yes, 2014
INTRODUCTION: A number of studies have attempted to predict the effects of climate change on schistosomiasis risk. The importance of considering different species of intermediate host snails separately has never previously been explored.
Booth, Mark   +11 more
core   +2 more sources

Modelling of the distribution of Biomphalaria glabrata and Biomphalaria straminea in the metropolitan region of Recife, Pernambuco, Brazil

open access: yesGeospatial Health, 2016
The occurrence of schistosomiasis is directly linked to the presence of its snail intermediate host <em>Biomphalaria</em> spp. Knowledge of geographical distribution, habitats and behaviour of these snails in relation to the climate is essential for guiding measures for disease prevention and control.
Verônica Santos Barbosa   +3 more
openaire   +4 more sources

Genetic Diversity and Ecological Distribution of Bulinus Populations in Southern Benin Using PCR‐RFLP Analysis

open access: yesBioMed Research International, Volume 2026, Issue 1, 2026.
Schistosomiasis remains a major public health concern in Benin. Freshwater snails of the genus Bulinus serve as intermediate hosts for schistosomes, trematode parasites responsible for bilharzia. The urinary form, caused by Schistosoma haematobium, is the most prevalent and is primarily transmitted by Bulinus truncatus and Bulinus globosus, whereas the
Elokou Alabi   +9 more
wiley   +1 more source

Immunoelectrophoretic study on common antigens of São Lourenço da Mata and Belo Horizonte strains of Schistosoma mansoni adult worms and Biomphalaria snails Estudos imunoeletroforéticos sobre antígenos comuns entre vermes adultos de Schistosoma mansoni, cepas de São Lourenço da Mata e de Belo Horizonte, e moluscos Biomphalaria

open access: yesRevista do Instituto de Medicina Tropical de São Paulo, 1992
Immunoelectrophoretic studies on common antigens were carried out by using rabbits sera immunized against São Lourenço da Mata and Belo Horizonte strains of Schistosoma mansoni adult worms and antigens of Biomphalaria glabrata pigmented (Jaboatão - PE ...
José Valfrido de Santana   +5 more
doaj   +1 more source

Schistosomal Rectal Polyposis Mimicking Colorectal Cancer: A Case Report of a 60‐mm Polyp in a Young Ethiopian Man Treated at Firoomsis General Hospital

open access: yesCase Reports in Gastrointestinal Medicine, Volume 2026, Issue 1, 2026.
Background Schistosomiasis is a major public health problem in endemic regions, affecting over 250 million individuals globally, with Schistosoma mansoni frequently causing intestinal and hepatosplenic disease. Chronic infection may lead to rectal polyposis, which can mimic colorectal malignancy and create diagnostic and therapeutic challenges ...
Alemayehu Abebe Guji   +6 more
wiley   +1 more source

Planorbidae, Lymnaeidae and Physidae of Ecuador (Mollusca: Basommatophora)

open access: yesMemorias do Instituto Oswaldo Cruz, 2004
In the course of a trip to Ecuador I had the opportunity of collecting topotypic specimens of the following nominal species of pulmonate molluscs: Biomphalaria cousini Paraense, 1966; Planorbis equatorius Cousin, 1887; P.
W Lobato Paraense
doaj   +1 more source

Microhabitat preferences of Biomphalaria pfeifferi and Lymnaea natalensis in a natural and a man-made habitat in southeastern Tanzania. [PDF]

open access: yes, 2000
Schistosoma mansoni is an important human parasitic disease which is widespread throughout Africa. As Biomphalaria pfeifferi snails act as intermediate host, knowledge of their population ecology is an essential prerequisite towards understanding disease
Marcel Tanner   +5 more
core  

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