Topic
Filopaludina martensi
About: Filopaludina martensi is a research topic. Over the lifetime, 13 publications have been published within this topic receiving 95 citations.
Papers
TL;DR: The occurrence of 37-collar spined echinostome metacercariae in freshwater snails was investigated in 6 districts of Chiang Mai Province, Thailand, from October 2011 to April 2012 and confirmed that Filopaludina spp.
Abstract: The occurrence of 37-collar spined echinostome metacercariae in freshwater snails was investigated in 6 districts of Chiang Mai Province, Thailand, from October 2011 to April 2012. A total of 2,914 snails that belong to 12 species were examined, and 7 snail species (Clea helena, Eyriesia eyriesi, Bithynia funiculata, Bithynia siamensis siamensis, Filopaludina doliaris, Filopaludina sumatrensis polygramma, and Filopaludina martensi martensi) were found infected with echinostome metacercariae. The prevalence of metacercariae was the highest in Filopaludina spp. (38.5-58.7%) followed by B. funiculata (44.0%), E. eyriesi (12.5%), B. siamensis siamensis (8.2%), and C. helena (5.1%). Metacercariae were experimentally fed to hamsters and domestic chicks, and adult flukes were recovered from both hosts at days 15 and 20 post-infection. The adult flukes were identified based on morphological features, morphometrics, host-parasite relationships, and geographical distribution. They were compatible to Echinostoma revolutum or Echinostoma jurini, with only minor differences. As the adults were recovered from both hamsters and chicks, our specimens were more compatible to E. revolutum rather than E. jurini (reported only from mammals). This is the first report for metacercariae of E. revolutum in the snail host, C. helena, and also confirmed that Filopaludina spp., E. eryresi, and Bithynia spp. act as the second intermediate hosts of E. revolutum under natural conditions, which are indigenously distributed in Chiang Mai province.
41 citations
Journal Article•
TL;DR: The population of most mollusk species increased during the cold season while that of clams and that of some species of snails increase during the rainy season, and neither shedding light nor digestion with pepsin A revealed any human parasites in the mollusks sampled.
Abstract: Sampling surveys to study the diversity of mollusks in the Lam Ta Khong reservoir, Nakhon Ratchasima Province, northeast Thailand, were carried out in the hot, rainy and cold seasons. The study area was divided into: Area I--the upper part where the Lam Ta Khong river drains; Area II--the mid-section of the reservoir; Area III--behind the dam. Mollusks were collected from four locations on each bank (to the right and left) of each area. Each location was sampled to include 6 cross-sectional stations; in total, 144 stations were sampled. In the deep water, an Ekman dredge was used to collect samples; the scoop or manual method was used at the water's edge. Ten species of snails and four species of clams were found. The dominant species of snails were: Clea helena, Bithynia siamensis goniomphalos and Melanoides tuberculata; clams were dominated by Corbicula sp. The intermediate host of the human blood fluke was not found. The population of most mollusk species increased during the cold season while that of clams and that of some species of snails increased during the rainy season. Clams and operculate snails predominated in Areas II and III. Pulmonate snails were mostly found close to the bank and on aquatic plants especially in Areas I and II. Operculate snails and clams mainly inhabited water 1 to 10 m deep. Two species of edible mollusks were found: Filopaludina martensi martensi and large numbers of Corbicula. Neither shedding light nor digestion with pepsin A revealed any human parasites in the mollusks sampled.
18 citations
1 Jan 2008
TL;DR: In this article, the toxicity bioassay of the juvenile freshwater snail, Filopaludina martensi martensus, exposed to mercury and cadmium was studied.
Abstract: The toxicity bioassay of the juvenile freshwater snail, Filopaludina (Siamopaludina) martensi martensi exposed to mercury and cadmium was studied. The median lethal concentrations of mercury were lower than those of cadmium after 24, 48, 72, and 96 h of exposure. In metal bioaccumulation experiments, the mean residual concentrations of mercury and cadmium in the treated snail and the treatment water were assessed. However, more cadmium was found accumulated in its tissues.
18 citations
Journal Article•
TL;DR: An extensive study examined cercarial development through to adult worms by infecting 3 genera of 7 crab species with penetration of cercariae and feeding of snails containing such cercarioe and concluded that the Filopaludina Martensi martensi snail is a susceptable natural first intermediate host of P. siamensis.
Abstract: The first intermediate host of six-known the Paragonimus species in Thailand had not been found until the Filopaludina (Siamopaludina) martensi martensi snail was discovered to maintain the cercariae of a Paragonimus species. An extensive study examined cercarial development through to adult worms by infecting 3 genera of 7 crab species with penetration of cercariae and feeding of snails containing such cercariae. These crabs provided many metacercariae which were fed to cats and bandicoots. The animals gave many Paragonimus adult worms which were characterized as Paragonimus siamensis by the following criteria: 6-lobed ovary and cuticular spines in groups. It is concluded that the Filopaludina martensi martensi snail is a susceptable natural first intermediate host of P. siamensis. Second intermediate hosts Somanniathelphusa brandti, S. sexpunctatum and S. bangkokensis were experimentally infected; prior to this study only S. germaini and S. dugasti had ever been naturally infected with metacercariae of this species.
15 citations
TL;DR: This research demonstrated RAPD profiling has been a useful tool to detect DNA polymorphisms to determine genetic relationship between echinostome metacercariae in Lamphun Province, Northern Thailand.
9 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2021 | 2 |
| 2020 | 3 |
| 2017 | 1 |
| 2014 | 2 |
| 2013 | 1 |
| 2010 | 1 |