Results 51 to 60 of about 5,007 (181)

Distribution and habitat preferences of the genus Biomphalaria (Gastropoda: Planorbidae) in Cuba

open access: yesMemorias do Instituto Oswaldo Cruz, 2010
A study was carried out to determine the distribution and habitat preferences of several species of the genus Biomphalaria. Samples were taken at 350 freshwater locations in Cuba.
Antonio Alejandro Vázquez Perera   +2 more
doaj   +1 more source

Between Droughts and Floods: The Seasonal Response of Freshwater Snails in Artificial Reservoirs in the Brazilian Semiarid Region

open access: yesPopulation Ecology, Volume 68, Issue 1, January 2026.
We investigate the seasonal dynamics of two freshwater snails, Biomphalaria straminea and Melanoides tuberculata, in artificial reservoirs of the Brazilian semiarid region. Despite regulated hydrology, B. straminea exhibited strong seasonal fluctuations associated with dry periods, while M. tuberculata maintained stable populations throughout the year,
Lucas Henrique Sousa da Silva   +6 more
wiley   +1 more source

Competição biológica entre Biomphalaria glabrata (Say, 1818) e Biomphalaria tenagophila (d'Orbigny, 1835) em criadouros naturais no município de Ourinhos, SP (Brasil) Biological competition between Biomphalaria glabrata (Say, 1818) and Biomphalaria tenagophila (d'Orbigny, 1835), observed in their natural breeding sites in Ourinhos, SP (Brazil)

open access: yesRevista de Saúde Pública, 1980
Foram feitas observações sobre a provável competição entre Biomphalaria tenagophila e Biomphalaria glabrata, em três criadouros do tipo vala, situados no Município de Ourinhos (SP), durante o período de 27-11-73 a 20-02-79.
Urara Kawazoe   +3 more
doaj   +1 more source

A contribution to the pathobiology of Biomphalaria glabrata hemocytes [PDF]

open access: yesMemórias do Instituto Oswaldo Cruz, 2006
This study attempts to investigate the relationship between the hemocytes in the two compartments: circulating peripheral lymph and the connective tissues. The hemocytes are compared with the vertebrate macrophages and constitute the principal line of defense against external aggression.
Borges, Claudia Maria da Cunha   +2 more
openaire   +4 more sources

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

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

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

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

Schistosomiasis Knowledge, Attitudes, and Practices Among School‐Going Children Aged 5–14 Years in Nelson Mandela Bay (NMB), South Africa

open access: yesJournal of Parasitology Research, Volume 2026, Issue 1, 2026.
Background Schistosomiasis, a parasitic waterborne infection, remains a major public health challenge in disadvantaged regions, with schoolchildren (5–14 years) at high risk due to frequent water exposure. The study is aimed at assessing the knowledge, attitudes, and practices (KAP) related to schistosomiasis among school‐aged children in Nelson ...
Maryline Vere   +6 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

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