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Melanoides tuberculata

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https://www.readbyqxmd.com/read/27882434/new-locality-record-for-haplorchoides-mehrai-and-possible-interactions-with-opisthorchis-viverrini-metacercariae-in-cyprinid-fishes-in-northeast-thailand
#1
Yupin Manpratum, Wanlop Kaewkes, Pierre Echaubard, Banchob Sripa, Sasithorn Kaewkes
Metacercariae of Opisthorchis viverrini, a carcinogenic liver fluke, and Haplorchoides sp., a trematode maturing in catfish, are commonly found in cyprinid fish, the second intermediate hosts of both flukes. However, the specific identity of Haplorchoides sp. in Thailand and a precise assessment of the effects of co-infections with O. viverrini have never been clarified. Therefore, we aimed to identify the species of Haplorchoides and to investigate possible interactions of the two trematode species in cyprinid fishes...
November 23, 2016: Parasitology Research
https://www.readbyqxmd.com/read/27599102/centrocestus-formosanus-trematoda-heterophyidae-in-melanoides-tuberculata-gastropoda-thiaridae-from-vila-do-abra%C3%A3-o-ilha-grande-rio-de-janeiro-brazil
#2
R F Ximenes, I C B Gonçalves, I C Miyahira, H A Pinto, A L Melo, S B Santos
Pleurolophocercous cercariae found in the invasive gastropod Melanoides tuberculata (Müller, 1774) collected in a stream of the Vila do Abraão, Ilha Grande, Angra dos Reis, Rio de Janeiro, Brazil were used for experimental infection that enabled the identification of the heterophyid trematode Centrocestus formosanus (Nishigori, 1924). The parasite has been found in the locality since 2007, after two years of the introduction of M. tuberculata. Recently, from a sample of 483 specimens collected in June 2013, 101 (21%) were found infected with parasite...
September 5, 2016: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/27498505/studies-on-monitoring-the-heavy-metal-contents-in-water-sediment-and-snail-species-in-latipada-reservoir
#3
Bhalchandra Waykar, Ram Petare
The concentrations of zinc, copper, cadmium and lead in surface water, sediments and two native snail species, Bellamya bengalensis and Melanoides tuberculata from Latipada reservoir were determined. The concentrations of cadmium and lead in surface water were higher than the WHO recommended limits for drinking water standards; where as those of zinc and copper were within the permissible limits. The concentrations of zinc, copper, cadmium and lead were higher in sediments than in water. The observed bioaccumulated level of zinc, copper, cadmium and lead in Bellamya bengalensis were Zn- 197...
July 2016: Journal of Environmental Biology
https://www.readbyqxmd.com/read/27328972/the-first-record-of-centrocestus-formosanus-nishigori-1924-digenea-heterophyidae-in-egypt
#4
F Yousif, M Ayoub, M Tadros, S El Bardicy
The life cycle of Centrocestus formosanus (Digenea: Heterophyidae) was to be successfully completed in the laboratory in the present study. Hundreds of the thiarid snail, Melanoides tuberculata, were collected from the main water course Mansouriya Canal, Giza Governorate, Egypt. The snails were individually exposed to artificial light to determine possible infection with trematode larvae. Fifteen snails were found infected with opthalmopleurolophocercous cercariae (infection index of 1.97). These opthalmopleurolophocercous cercariae shedded from snails were collected and placed in an aquarium with fish intermediate host, Gambusia affinis, to obtain metacercariae encysted in the gills...
September 2016: Experimental Parasitology
https://www.readbyqxmd.com/read/26812231/trematode-fluke-procerovum-varium-as-cause-of-ocular-inflammation-in-children-south-india
#5
Lalan Kumar Arya, Sivakumar R Rathinam, Prajna Lalitha, Usha R Kim, Sudeep Ghatani, Veena Tandon
Trematodes are recognized as a group of emerging parasites in tropical countries. We identified a trematode as a cause of ocular granulomas that developed in children who bathed in ponds or rivers in South India. DNA was isolated from patients' surgically excised granulomas and from the trematode cercariae (larvae) released by the snail Melanoides tuberculata in water in which the children bathed. Real-time and conventional PCRs were performed that targeted ribosomal DNA regions spanning the internal transcribed spacer 2 and 28S sequences of this trematode...
February 2016: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/26642755/the-role-of-rice-fields-fish-ponds-and-water-canals-for-transmission-of-fish-borne-zoonotic-trematodes-in-aquaculture-ponds-in-nam-dinh-province-vietnam
#6
Henry Madsen, Bui Thi Dung, Dang Tat The, Nguyen Khue Viet, Anders Dalsgaard, Phan Thi Van
BACKGROUND: Fish-borne zoonotic trematodes (FZT), such as Clonorchis sinensis, Opistorchis viverini (Opisthorchiidae) and intestinal trematodes of the family Heterophyidae, constitute a public health hazard in Vietnam and infections with these trematodes has been linked to consumption of raw or undercooked fish from aquaculture. The FZT transmission pathways, however, are more complicated than just the presence of intermediate snail hosts in aquaculture ponds as ponds may exchange water with surrounding habitats such as rice fields and irrigation canals and thereby these surrounding habitats may be a source of snails and cercariae and contribute to FZT infection in cultured fish...
2015: Parasites & Vectors
https://www.readbyqxmd.com/read/26335181/first-record-of-transversotrema-witenberg-1944-digenea-from-the-americas-with-comments-on-the-taxonomy-of-transversotrema-patialense-soparkar-1924-crusz-and-sathananthan-1960-and-an-updated-list-of-its-hosts-and-geographic-distribution
#7
Matthew R Womble, Stephanie J Cox-Gardiner, Thomas H Cribb, Stephen A Bullard
Specimens of Transversotrema patialense (sensu lato) ( Soparkar, 1924 ) Crusz and Sathananthan, 1960 (Digenea: Transversotrematidae) infected the skin (epidermal spaces beneath scales near pectoral fins) of 4 of 126 (prevalence 3%; mean intensity 1.8) zebrafish ( Danio rerio (Hamilton, 1822) [Cypriniformes: Cyprinidae]) purchased in 2009 and cultured by a California (USA) fish supplier. These fish were sold as "laboratory-reared" and "specific pathogen free," purportedly raised in a recirculating aquaculture system that included zebrafish only...
December 2015: Journal of Parasitology
https://www.readbyqxmd.com/read/26152614/associations-between-trematode-infections-in-cattle-and-freshwater-snails-in-highland-and-lowland-areas-of-iringa-rural-district-tanzania
#8
Jahashi Nzalawahe, Ayub A Kassuku, J Russell Stothard, Gerald C Coles, Mark C Eisler
The epidemiology of trematode infections in cattle was investigated within highland and lowland areas of Iringa Rural District, in southern Tanzania. Fecal samples were collected from 450 cattle in 15 villages at altitudes ranging from 696 to 1800 m above the sea level. Freshwater snails were collected from selected water bodies and screened for emergence of cercariae. The infection rates in cattle were Fasciola gigantica 28·2%, paramphistomes 62·8% and Schistosoma bovis 4·8%. Notably, prevalence of trematode infections in cattle was much higher in highland (altitude > 1500 m) as compared with lowland (altitude < 1500 m) areas and was statistically significant (P-value = 0·000) for F...
September 2015: Parasitology
https://www.readbyqxmd.com/read/26012230/studies-on-the-effect-of-pollution-on-lake-manzala-ecosystem-in-port-said-damietta-and-dakahlia-governorates-egypt
#9
Hanaa M M El-Khayat, Kadria M A Mahmoud, Hanan S Gaber, Hoda Abdel-Hamid, Hoda M A Abu Taleb
This work studied how pollution impacts the ecosystem of Lake Manzala by determination of physicochemical parameters, studying biodiversity of aquatic plants and macroinvertebrates, and determining bioaccumulation of Pb, Cu, Cd & Zn in some major organisms, Biomphalaria alexandrina and Melanoides tuberculata snails and Oreochromis niloticus fish. The more near to Mediterranean Sea and to the industrial area, Port-Said and Damietta sites showed higher dissolved oxygen and conductivity than Dakahlia sites. Distribution percentage of Eichhornia crassipes is high among Port-Said and Dakahlia sites of 100 and 88%, respectively, while Lemna giba is the most abundant among Damietta sites of 60%...
April 2015: Journal of the Egyptian Society of Parasitology
https://www.readbyqxmd.com/read/25886047/recurrent-camouflaged-invasions-and-dispersal-of-an-asian-freshwater-gastropod-in-tropical-africa
#10
Bert Van Bocxlaer, Catharina Clewing, Jean-Papy Mongindo Etimosundja, Alidor Kankonda, Oscar Wembo Ndeo, Christian Albrecht
BACKGROUND: Non-indigenous taxa currently represent a large fraction of the species and biomass of freshwater ecosystems. The accumulation of invasive taxa in combination with other stressors in these ecosystems may alter the habitats to which native taxa are adapted, which could elicit evolutionary changes in native populations and their ecological interactions. Assessing ecological and evolutionary consequences of invasions simultaneously may therefore be the most effective approach to study taxa with complex invasion histories...
2015: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/25776312/recurrent-camouflaged-invasions-and-dispersal-of-an-asian-freshwater-gastropod-in-tropical-africa
#11
Bert Van Bocxlaer, Catharina Clewing, Jean-Papy Mongindo Etimosundja, Alidor Kankonda, Oscar Wembo Ndeo, Christian Albrecht
BACKGROUND: Non-indigenous taxa currently represent a large fraction of the species and biomass of freshwater ecosystems. The accumulation of invasive taxa in combination with other stressors in these ecosystems may alter the habitats to which native taxa are adapted, which could elicit evolutionary changes in native populations and their ecological interactions. Assessing ecological and evolutionary consequences of invasions simultaneously may therefore be the most effective approach to study taxa with complex invasion histories...
December 2015: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/25586313/current-status-of-fish-borne-zoonotic-trematode-infections-in-gia-vien-district-ninh-binh-province-vietnam
#12
Nguyen Manh Hung, Do Trung Dung, Nguyen Thi Lan Anh, Phan Thi Van, Bui Ngoc Thanh, Nguyen Van Ha, Hoang Van Hien, Le Xuan Canh
BACKGROUND: Ninh Binh province is known as an endemic area of fish-borne zoonotic trematode (FZT) transmission in Vietnam. A cross-sectional study was conducted in Gia Minh and Gia Thinh communes of Gia Vien district, Ninh Binh province to investigate the infections with different stages of FZT in various host species. METHODS: Faecal samples from 1,857 humans were examined for trematode eggs using the Kato-Katz method, while faecal samples from 104 dogs, 100 cats, and 100 pigs were examined using the Formalin-ethyl acetate concentration technique (FECT)...
2015: Parasites & Vectors
https://www.readbyqxmd.com/read/25229292/a-malacological-survey-in-the-manso-power-plant-state-of-mato-grosso-brazil-new-records-of-freshwater-snails-including-transmitters-of-schistosomiasis-and-exotic-species
#13
Monica Ammon Fernandez, Aline Carvalho de Mattos, Elizangela Feitosa da Silva, Sonia Barbosa Dos Santos, Silvana Carvalho Thiengo
INTRODUCTION: Schistosomiasis is a parasitic disease of public health concern in Brazil, and the construction of hydroelectric dams, in addition to increasing permanent human settlement and tourism, has created conditions suitable for the establishment of mollusks that can transmit schistosomiasis. Such areas require a number of actions to prevent the establishment of schistosomiasis. This paper reports on a freshwater malacological survey carried out in the geographical area of the Manso Power Plant...
July 2014: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/25102356/focal-philophthalmus-gralli-infection-possibly-persists-in-melanoides-tuberculata-over-two-years-following-the-definitive-hosts-removal
#14
Petr Heneberg, Alicia Rojas, Jiří Bizos, Lucie Kocková, Milena Malá, Diana Rojas
Philophthalmosis is a zoonotic disease associated largely with the spread of the invasive freshwater snail Melanoides tuberculata, serving as an intermediate host. Here we examined Philophthalmus gralli focal fenced infection site reported recently as being associated with Tinamus major and M. tuberculata in Alajuela, Costa Rica. Removal of the definitive hosts allowed us to address also the long-term survival strategy of the parasite. Initially, the snail intermediate hosts displayed high prevalence of P. gralli infection across all its age cohorts...
December 2014: Parasitology International
https://www.readbyqxmd.com/read/24827099/import-of-exotic-and-zoonotic-trematodes-heterophyidae-centrocestus-sp-in-xiphophorus-maculatus-implications-for-ornamental-fish-import-control-in-europe
#15
Foojan Mehrdana, Hannah M Jensen, Per W Kania, Kurt Buchmann
Ornamental fish, Xiphophorus maculatus, were imported from Singapore to Denmark for distribution to local aquarists. Importers observed lethargic and erratic swimming patterns among fish and forwarded a total of 30 fish for pathological examination to a university diagnostic service. All fish were diagnosed infected with encysted Centrocestus sp. metacercariae in gills (prevalence of 100% and mean intensity of 454.5 ± 161.9 parasites per fish). Metacercariae were identified by morphological and molecular methods...
June 2014: Acta Parasitologica
https://www.readbyqxmd.com/read/24672384/consequences-of-physical-disturbance-by-tadpoles-and-snails-on-chironomid-larvae
#16
Gargi Pal, Gautam Aditya, Niladri Hazra
Indirect interactions among community members impact on organisms. The effects of two snails, banded pond snail, Bellamya bengalensis (Lamarck), and Red-rimmed melania, Melanoides tuberculata (Müller), and tadpoles of Asian common toad, Duttaphrynus melanostictus (Schneider), on nonbiting midge larvae, Chironomus striatipennis Kieffer, were observed in experimental microcosm. Decrease in tube number and tube length of midge larvae was observed compared to control condition due to introduction of selected above mentioned organisms...
2014: TheScientificWorldJournal
https://www.readbyqxmd.com/read/24615433/-epidemiology-of-urinary-schistosomiasis-among-school-children-in-p%C3%A3-hunco-area-northern-benin-malacological-survey
#17
M Ibikounlé, A Ogouyèmi-Hounto, Y Sissinto Savi de Tové, A Dansou, D Courtin, D Kindé-Gazard, G Mouahid, H Moné, A Massougbodji
Schistosomiasis is a public health problem in Benin but prevalence estimates vary widely. Parasitological (from May to September 2010) and malacological surveys (from September 2010 to June 2012) were conducted to determine the current status of urinary schistosomiasis among 1 585 schoolchildren from 18 primary schools of Péhunco area, North-West Benin, using two parasitological tests. Pupils were enrolled with a mean age of 11 years (from 7 to 16 years-old age) and 51.48% of them were girls. Urines samples were examined using both urine reagent strips and filtration method...
August 2014: Bulletin de la Société de Pathologie Exotique
https://www.readbyqxmd.com/read/24322292/gigantobilharzia-melanoidis-n-sp-trematoda-schistosomatidae-from-melanoides-tuberculata-gastropoda-thiaridae-in-the-united-arab-emirates
#18
Rolf K Schuster, Jitka A Aldhoun, Declan O'Donovan
Delicate filamentous schistosomatids detected in the intestinal veins of experimentally infected chickens are here described as a new parasite species, Gigantobilharzia melanoidis, and details of its life cycle are given. It is the first complete description of a schistosome species that uses Melanoides tuberculata as an intermediate host. Apharyngeate ocellate brevifurcate cercariae found in 65 out of 950 M. tuberculata collected in a pond in Al Aweer, United Arab Emirates were used as infection material. The new species can be distinguished from the other species of the genus by the following combination of characters: caecal reunion in males situated anterior to seminal vesicle, a very short gynecophoric canal (gynecophoric canal length/body length ratio lower than 0...
March 2014: Parasitology Research
https://www.readbyqxmd.com/read/24118641/clonal-diversity-driven-by-parasitism-in-a-freshwater-snail
#19
Y Dagan, K Liljeroos, J Jokela, F Ben-Ami
One explanation for the widespread abundance of sexual reproduction is the advantage that genetically diverse sexual lineages have under strong pressure from virulent coevolving parasites. Such parasites are believed to track common asexual host genotypes, resulting in negative frequency-dependent selection that counterbalances the population growth-rate advantage of asexuals in comparison with sexuals. In the face of genetically diverse asexual lineages, this advantage of sexual reproduction might be eroded, and instead sexual populations would be replaced by diverse assemblages of clonal lineages...
November 2013: Journal of Evolutionary Biology
https://www.readbyqxmd.com/read/23993998/pathology-and-first-report-of-natural-eye-infection-with-the-trematode-philophthalmus-gralli-digenea-philophthalmidae-in-tinamus-major-tinamiformes-tinamidae-costa-rica
#20
Diana Rojas, Carmen Soto, Alicia Rojas
The eye-fluke Philophthalmus gralli (Philophthalmidae Looss, 1899) was found in six birds known as great tinamous (Tinamus major) reared in a wild animal shelter located in Alajuela, Costa Rica. The birds presented conjunctival hyperemia, blepharitis, anorexia and weakness. Some of them suffered from unilateral blindness and ocular loss. After morphometric analysis, the specimens showed characteristics compatible with the digenean trematode P. gralli. The clinical signs of infection were resolved by manual removal of the adults, treatment with praziquantel and relocation into an environment without a natural water source...
December 2013: Parasitology International
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