Morphological Characteristics and Phylogenetic Trends of Trematode Cercariae in Freshwater Snails from Nakhon Nayok Province, Thailand

Chontananarth, Thapana; Tejangkura, Thanawan; Wetchasart, Napat; Chimburut, Cherdchay

doi:10.3347/kjp.2017.55.1.47

Cited by 30 publications

(28 citation statements)

References 23 publications

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“…helena , L. auricularia, and Co. javanica were found not to be infected with any cercariae in this study, however this is in contrast to other studies. For example, it was found that L. auricularia was the most important intermediate snail host for transmitting a wide variety of trematodes in Thailand [ 51 , 52 ]. Many records in Thailand pointed to Bithynia snails being the key link in the liver fluke, Opisthorchis viverrini .…”

Section: Discussionmentioning

confidence: 99%

Freshwater Snail Diversity in Mae Lao Agricultural Basin (Chiang Rai, Thailand) with a Focus on Larval Trematode Infections

2018

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The aim of this study was to conduct a freshwater snail survey in Mae Lao agricultural basin to assess the diversity with a focus on habitat types and their larval trematode infections. Snails were collected and examined in 14 sites of Mae Lao agricultural basin from August 2016 to October 2017. A total of 1,688 snail individuals were collected and classified into 7 families, 8 genera, and 12 species. Snail diversity and habitat types were higher in rice paddies than irrigation canals and streams. The most abundant species was Bithynia siamensis siamensis, representing 54.6% of the sample. Three species of snails act as first intermediate host were found with cercarial infections. They were Filopaludina sumatrensis polygramma, B. s. siamensis, and Melanoides tuberculata. The cercariae were categorized into 7 types; echinostome, monostome, gymnocephalous, virgulate, parapleurolophocercous, pleurolophocercous and megalurous cercariae. Parapleurolophocercous cercariae constituted the most common type of cercariae recovered, contributing 41.2% of all infections in snails. Echinostome metacercariae infections were found in 6 snail species with 7.6% prevalence. In addition, the metacercaria of avian trematode, Thapariella sp. were found in Filopaludina spp. snails and B. funiculata with a prevalence of 0.5%. This is the first report for Thapariella metacercariae in the snail host, B. funiculata, and also confirmed that viviparid and bithyniid snails act as the second intermediate hosts of this trematode. This work will provide new information on the distribution and intermediate host of trematode in this area.

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Section: Discussionmentioning

confidence: 99%

Freshwater Snail Diversity in Mae Lao Agricultural Basin (Chiang Rai, Thailand) with a Focus on Larval Trematode Infections

2018

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“…Trematodes are internal parasites with a complex life cycle which includes a number of stages with parthenogenetic and amphimictic (mostly hermaphroditic) generations, as well as alternating hosts, invertebrates and vertebrates (Blasco-Costa, Poulin, 2017;Zhytova, Kornyushin, 2017). Th e fi rst intermediate host in that life cycle is almost always a molluscs (Serbina, 2014;Zhytova, Zhytov, 2016;Faltynkova, 2016;Gordy et al, 2016;Chontananarth, 2017), in which parthenogenetic generations of trematodes develop. Th e second intermediate host can be animals of diff erent systematic groups, mainly invertebrates.…”

Section: Introductionmentioning

confidence: 99%

Circulation Pathways of Trematodes of Freshwater Gastropod Mollusks in Forest Biocenoses of the Ukrainian Polissia

Zhytova¹,

Романчук²,

Guralska³

et al. 2019

Vestnik Zoologii

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This is the first review of life cycles of trematodes with parthenitae and larvae in freshwater gastropods from forest biocoenoses of Ukrainian Polissia. Altogether 26 trematode species from 14 families were found circulating in 13 ways in molluscs from reservoirs connected with forest ecosystems of the region. Three-host life cycle is typical of 18 trematode species, two-host life cycle has found in 7 species, and four-host cycles has found in one species. Alaria alata Goeze, 1782, has three-host (Shults, 1972) and four-host cycles. Opisthioglyphe ranae (Froehlich, 1791) can change three-host life cycle to two-host cycle replacing the second intermediate host (Niewiadomska et al., 2006) with the definitive host. Species with primary two-host life cycle belong to Notocotylidae Lühe, 1909, Paramphistomidae Fischoeder, 1901 and Fasciolidae Railliet, 1758 families. Trematodes with three-host cycle have variable second intermediate hosts, including invertebrates and aquatic or amphibious vertebrates. Definitive hosts of trematodes are always vertebrates from different taxonomic groups. The greatest diversity of life cycles is typical for trematodes of birds. Trematodes in the forest biocoenoses of Ukrainian Polissia infect birds in six ways, mammals in three, amphibians in four, and reptiles in one way. The following species have epizootic significance: Liorchis scotiae (Willmott, 1950); Parafasciolopsis fasciolaemorpha Ejsmont, 1932; Notocotylus seineti Fuhrmann, 1919; Catatropis verrucosa (Frölich, 1789) Odhner, 1905; Cotylurus cornutus (Rudolphi, 1808); Echinostoma revolutum (Fröhlich, 1802) Dietz, 1909; Echinoparyphium aconiatum Dietz, 1909; Echinoparyphium recurvatum (Linstow, 1873); Hypoderaeum conoideum (Bloch, 1782) Dietz, 1909; Paracoenogonimus ovatus Kasturada, 1914; Alaria alata Goeze, 1782.

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“…In Thailand, the studies related to snails diversity and cercarial infection are insufficient (9–11), especially in Sirindhorn Reservoir where is an important area used for agricultural purposes, animal husbandry, also the source of fish farming. No study has been surveyed snail diversity and parasitic infection in snail in Sirindhorn Reservoir, Ubon Ratchathani Province, Thailand.…”

Section: Introductionmentioning

confidence: 99%

Situation and Cercarial Infection of Freshwater Mollusk from Sirindhorn Reservoir, Ubon Ratchathani Province, Thailand

Haruay

Piratae

2019

IJPA

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Background: Most of trematodes need snails to complete their life cycles. Consequently freshwater snails are served as intermediate hosts of many parasites worldwide. There is a lack of report on snail diversity and parasitic infection in snails in Sirindhorn Reservoir, Ubon Ratchathani province, Thailand. Methods: Mollusk diversity and trematode cercariae infections were investigated in snails from 120 sampling sites surround Sirindhorn Reservoir from April 2018 to June 2018. Mollusk species were identified based on their shell morphology. The presence of cercariae infections in snails was examined by cercarial shedding methods. The interaction between snail species was analyzed by the correlation method. Results: Overall, 2076 mollusks were collected which comprised six species of snails and two species of bivalves. Snail species were identified as Bithynia siamensis goniomphalos, Anentome helena, Filopaludina sumatrensis spiciosa, F. martensi martensi, F. martensi munensis and Pomacea canaliculata. The overall rate of trematode cercariae infection was 1.69% (35/2,076). The cercariae found infecting snails were Cercariaeum cercaria, Virgulate cercaria, Cotylomicrocercous cercaria and Furcocercous cercaria. The most common snails found was the assassin snail, A. helena, which showed the negative relationship among other species interactions. Conclusion: This finding indicated infection with animal’s parasites in snails in this area are common, besides, we found many species of snails in Sirindhorn Reservoir are potentially be the host of parasite in animal and human.

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Morphological Characteristics and Phylogenetic Trends of Trematode Cercariae in Freshwater Snails from Nakhon Nayok Province, Thailand

Cited by 30 publications

References 23 publications

Freshwater Snail Diversity in Mae Lao Agricultural Basin (Chiang Rai, Thailand) with a Focus on Larval Trematode Infections

Freshwater Snail Diversity in Mae Lao Agricultural Basin (Chiang Rai, Thailand) with a Focus on Larval Trematode Infections

Circulation Pathways of Trematodes of Freshwater Gastropod Mollusks in Forest Biocenoses of the Ukrainian Polissia

Situation and Cercarial Infection of Freshwater Mollusk from Sirindhorn Reservoir, Ubon Ratchathani Province, Thailand

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