Results 11 to 20 of about 202 (147)

Self-fertilization in the freshwater snails Helisoma duryi and Helisoma trivolvis [PDF]

open access: yesMemorias Do Instituto Oswaldo Cruz, 1988
Fifty specimens of five strains (10 per strain) of Helisoma duryi from Lima (Peru), St. Croix (Virgin Islands), Formosa (Brazil), Cartago (Costa Rica) and St. Vincent (Lesser Antilles), reared in isolation for about 150 days, laid 103 eggs. The numbers of eggs laid by the 10 specimens of each strain were respectively (viable eggs in parenthesis): 44(26)
W Lobato Paraense, Paraense W Lobato
exaly   +5 more sources

Probiotic, antimicrobial and anticancer properties of Lysinibacillus macroides, Kurthia huakuii, and Enterococcus faecium isolated from freshwater snail gut microbiota [PDF]

open access: yesBMC Biotechnology
Background The composition and roles of intestinal microbial populations have been clarified including mammals and humans however, less is understood concerning the gut microbiota of mollusks. For the first time, we investigated non-parasite transmitting
Reham Alaa Eldin Shaker   +5 more
doaj   +3 more sources

Evaluation of the teratogenic potency of bulk zinc oxide and its nanoparticles on embryos of the freshwater snail, Helisoma duryi [PDF]

open access: yesScientific Reports
Bulk zinc oxide (ZnO-BPs) and its nanoparticles (ZnO-NPs) are frequently used in various products for humans. Helisoma duryi embryos can serve as effective model organisms for studying the toxicity of NPs.
Manar A. Kandeil   +3 more
doaj   +4 more sources

Primera cita del caracol exótico Helisoma duryi (Wetherby, 1879), (Gastropoda: Planorbidae) en Marruecos

open access: yesGraellsia, 2023
El molusco exótico Helisoma duryi es un popular caracol ornamental de agua dulce que se utiliza para controlar las microalgas en los acuarios. Ahora se presenta como una especie introducida en hábitats acuáticos de Europa, África y América del Sur ...
Abdelkhaleq Fouzi Taybi   +2 more
doaj   +3 more sources

Alimentação e fecundidade de planorbídeos criados em laboratórios: IV - Helisoma duryi (Wetherby, 1879). (Pulmonata, Planorbidae) Feeding and fecundity of planorbidae bred in the laboratory: IV - Helisoma duryi (Wetherby, 1879). (Putmonata, Planorbidae)

open access: yesRevista de Saúde Pública, 1978
Utilizando dois tipos distintos de alimentos: "Aquariol" (alimento utilizado para alimentar peixes ornamentais) e alface, isolados e associados, na criação de Helisoma (Seminolina) duryi (Wetherby, 1879) em laboratório, foi verificado que; 1.
Roberto Milward-de-Andrade   +2 more
doaj   +2 more sources

Mycofiltration of Aqueous Iron (III) and Imidacloprid Solutions, and the Effects of the Filtrates on Selected Biomarkers of the Freshwater Snail Helisoma duryi. [PDF]

open access: yesArch Environ Contam Toxicol, 2023
Abstract A mycofilter made of Pleurotus ostreatus was used for the removal of iron (III) and imidacloprid from aqueous solutions. Batch mycofiltration, at a dosage of 1g of mycofilter per 50 ml, was performed on iron (III) solutions of different concentrations (0.99, 10.7, 22.9, and 27.72 mg/L) and pH (3.3, 7 and 11). For column mycofiltration,
Mnkandla SM   +3 more
europepmc   +3 more sources

Gastropods alien to South Africa cause severe environmental harm in their global alien ranges across habitats. [PDF]

open access: yesEcol Evol, 2018
This study assesses global impacts of alien gastropods using two novel impact scoring schemes to compare impact severity between species, as well as environmental and socioeconomic impacts, and to understand how impacts relate to habitats, impact mechanisms, and life‐history traits.
Kesner D, Kumschick S.
europepmc   +2 more sources

Self-fertilization in the freshwater snails Helisoma duryi and Helisoma trivolvis Autofecundação nos moluscos planorbídeos Helisoma duryi e Helisoma trivolvis

open access: yesMemorias do Instituto Oswaldo Cruz, 1988
Fifty specimens of five strains (10 per strain) of Helisoma duryi from Lima (Peru), St. Croix (Virgin Islands), Formosa (Brazil), Cartago (Costa Rica) and St. Vincent (Lesser Antilles), reared in isolation for about 150 days, laid 103 eggs.
W. Lobato Paraense, Lygia R. Corrêa
doaj   +2 more sources

Possible competitive displacement of planorbids by Melanoides tuberculata in Minas Gerais, Brazil

open access: yesMemorias do Instituto Oswaldo Cruz, 2001
Several species of snails, including Pomacea haustrum, Marisa cornuarietis and Helisoma duryi, have been identified as probable competitors and/or predators of planorbid intermediate hosts of Schistosoma. During the last few years, studies carried out in
Carlos Tito Guimarães   +2 more
doaj   +3 more sources

Toxicity of metals to a freshwater snail, Melanoides tuberculata. [PDF]

open access: yesScientificWorldJournal, 2012
Adult freshwater snails Melanoides tuberculata (Gastropod, Thiaridae) were exposed for a four‐day period in laboratory conditions to a range of copper (Cu), cadmium (Cd), zinc (Zn), lead (Pb), nickel (Ni), iron (Fe), aluminium (Al), and manganese (Mn) concentrations.
Shuhaimi-Othman M   +2 more
europepmc   +2 more sources

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