Effect of Ecological Factors on Snails Infection by <i>Schistosoma japonicum</i> in Central Sulawesi, Indonesia

Mardin, Sutrisnawati; Sardjono, Teguh Wahju; Fitri, Loeki Enggar; Aulanni’am, Aulanni’am; Ramadhan, Achmad

doi:10.3844/ajessp.2018.55.62

Cited by 6 publications

(5 citation statements)

References 14 publications

(16 reference statements)

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“…Water quality and composition were shown to have a significant impact on snail infectivity [11]. Environmental factors both abiotic and biotic factors were the major determinant factor for snail infectivity [12].…”

Section: Environmental Factorsmentioning

confidence: 99%

Impacts of Environmental Parameters on the Infectivity of Freshwater Snail

Korma¹

2022

Update on Malacology

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The successful transmission of the infective stage of the parasite (miracidia) depends on different factors. These free-living stages miracidia rely on their own stored energy and are directly exposed to environmental factors including disturbance resulting from pollution and human activities. There are different environmental factors that affect the cercarial infection of the snail. These include pH, temperature, salinity, dissolved oxygen, water hardness, habitat conditions, presence of predators and competitors, etc. Each of these factors may increase or decrease the freshwater snail’s infectivity. The more hydrogen ion concentration in the aquatic habitat could have an effect on the maturation and physiology of the parasitic stage (miracidia), leading to impaired survival and reduced infectivity. In contrast, high temperature increases snail infectivity. While low dissolved oxygen in the aquatic environment results in low snail infectivity. Regarding the presence of predators can result in low snail infectivity by consuming the schistosome egg and the snails themselves. Total hardness also had a negative impact on the prevalence of snail infection. The hardness of the water results in the shell hardening of snails subsequently leads to low infection of snail by miracidia.

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Section: Environmental Factorsmentioning

confidence: 99%

Impacts of Environmental Parameters on the Infectivity of Freshwater Snail

Korma¹

2022

Update on Malacology

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“…The sun is an important factor in the existence of cercariae of the genus Schistosoma. In addition, it is important to release of cercariae at water temperatures between 10°C and 30°C, even higher (Mardin et al, 2018) and between 22°C and 25.5°C (Garjito et al, 2014).…”

Section: Environmental Characteristics Oncomelania Lorelindoensismentioning

confidence: 99%

“…All are feeding of O. lorelindoensis. Chlorophycea is more dominant than those of other classes (Mardin et al, 2018). However, Hadidjaja and Sudomo (1976) stated that Diatomae are the main feeding of O. lorelindoensis (Mardin et al, 2018).…”

Section: Environmental Characteristics Oncomelania Lorelindoensismentioning

confidence: 99%

Oncomelania lorelindoensis: the intermediate host of Sulawesi’s Schistosoma japonicum

Nelwan

2023

Preprint

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Purpose: In this study, I report a study of the genus Oncomelania focused on Schistosoma japonicum and Oncomelania lorelindoensis as the intermediate hosts of Sulawesi schistosomiasis japonica, their distributions in Sulawesi, and control of O. lorelindoensis. Principal results: Proto-Oncomelania originated in eastern Indonesia, Sulawesi. It spread to the Philippines, Japan, and China, and then gave rise to Oncomelania. It is the intermediate host of Schistosoma japonicum. The genus Oncomelania comprises five species: Oncomelania hupensis, O. lorelindoensis (formerly O. hupensis lindoensis), O. minima, O. robertsoni, and O. quadrasi. Oncomelania lorelindoensis is the intermediate host of Sulawesi S. japonicum. It occurs in and around the Lore Lindu National Park: the Bada Valley, the Lindu Valley, and the Napu Valley, Central Sulawesi. This organism may have prevailed in the Kulawi Valley and the Palu Valley of Central Sulawesi Province. Control of O. lorelindoensis can use mechanic techniques, molluscicides, and genetic manipulation techniques. Conclusions: Oncomelania lorelindoensisoccurs in Central Sulawesi, Indonesia: the Bada Valley, the Lindu Valley, and the Napu Valley. It may also have expanded to other areas around Lore Lindu National Park. This organism is the intermediate host of Sulawesi S. japonicum.

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“…The sun is an important factor in the existence of cercariae of the genus Schistosoma. In addition, it is important to release cercariae at water temperatures between 10 °C and 30 °C, even higher 30 and between 22 °C and 25.5 °C. 25 Three classes of phytoplankton are in the habitats of O. lorelindoensis.…”

Section: Environmental Characteristics Of Oncomelania Lorelindoensismentioning

confidence: 99%

“…However, Hadidjaja and Sudomo (1976) stated that Diatomae are the main feeding of O. lorelindoensis. 30 It seems that food, humidity, pH, sunlight, and temperature are important factors for the life of Sulawesi S. japonicum and its intermediate host. Places that are suitable for both can become new areas for these two organisms.…”

Section: Environmental Characteristics Of Oncomelania Lorelindoensismentioning

confidence: 99%

Oncomelania Lorelindoensis: The Intermediate Host of Sulawesi's Schistosoma Japonicum

Nelwan

2021

SSRN Journal

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Effect of Ecological Factors on Snails Infection by Schistosoma japonicum in Central Sulawesi, Indonesia

Cited by 6 publications

References 14 publications

Impacts of Environmental Parameters on the Infectivity of Freshwater Snail

Impacts of Environmental Parameters on the Infectivity of Freshwater Snail

Oncomelania lorelindoensis: the intermediate host of Sulawesi’s Schistosoma japonicum

Oncomelania Lorelindoensis: The Intermediate Host of Sulawesi's Schistosoma Japonicum

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