3,267 results match your criteria freshwater snail

Draft genome of Semisulcospira libertina, a species of freshwater snail.

Genomics Inform 2021 Sep 30;19(3):e32. Epub 2021 Sep 30.

Department of Orthopaedic Surgery, Gyeongsang National University Hospital, Jinju 52727, Korea.

Semisulcospira libertina, a species of freshwater snail, is widespread in East Asia. It is important as a food source. Additionally, it is a vector of clonorchiasis, paragonimiasis, metagonimiasis, and other parasites. Read More

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September 2021

Effects of river-lake disconnection and eutrophication on freshwater mollusc assemblages in floodplain lakes: Loss of congeneric species leads to changes in both assemblage composition and taxonomic relatedness.

Environ Pollut 2021 Oct 8;292(Pt A):118330. Epub 2021 Oct 8.

College of Life Sciences, Zaozhuang University, Zaozhuang, 277160, China.

River floodplain ecosystems host one of the highest freshwater molluscan biodiversity on Earth. However, multiple human disturbances, such as loss of hydrological connectivity and deterioration of water quality, are seriously threatening most floodplain lakes throughout the world. Given the high imperilment rate of freshwater molluscs but the scarcity of studies examining the anthropogenic effects on this fauna, we test the response of mollusc assemblages to river-lake disconnection and eutrophication in 30 lakes in the Yangtze River floodplain, China. Read More

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October 2021

Cascading effects of benthic fish impede reinstatement of clear water conditions in lakes: A mesocosm study.

J Environ Manage 2021 Oct 7;301:113898. Epub 2021 Oct 7.

Department of Bioscience and WATEC, Aarhus University, Vejlsøvej, Silkeborg, 8600, Denmark; Limnology Laboratory, Department of Biological Sciences and Centre for Ecosystem Research and Implementation, Middle East Technical University, Ankara, 06800, Turkey; Sino-Danish Centre for Education and Research (SDC), University of Chinese Academy of Sciences, 100049, Beijing, China; Institute of Marine Sciences, Middle East Technical University, 33731, Erdemli-Mersin, Turkey. Electronic address:

In shallow eutrophic lakes, submersed macrophytes are essential for maintaining a clear water state, and they are affected markedly by fishes directly through herbivory and indirectly by fish-invertebrate-periphyton complexity, a pathway that presently is not well understood in subtropical lakes but probably vital to lake managements. We conducted a mesocosm study involving benthic fish (Misgurnus anguillicaudatus), snails (Radix swinhoei) and submersed macrophyte (Vallisneria natans), aiming to examine whether benthic fish is detrimental to reestablishment of clear-water macrophyte-dominated state in eutrophic degraded lakes. In addition, we aimed to investigate the cascading effect that benthic fish might have on periphyton and phytoplankton and to what extent snails can alleviate this effect. Read More

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October 2021

The Danubian cryptic invader Theodoxus fluviatilis (Gastropoda: Neritidae) in the River Rhine: a potential indicator for metal pollution?

Ecotoxicology 2021 Oct 8. Epub 2021 Oct 8.

German Environment Agency, Schichauweg 58, 12307, Berlin, Germany.

Metal pollution poses a major threat to aquatic systems especially in anthropogenic influenced areas, in as much as metals are persistent in the environment. The freshwater snail Theodoxus fluviatilis has often been used as an indicator species for the ecological status in river monitoring. In the River Rhine, the native Northern-European form of T. Read More

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October 2021

Species diversity and distribution of schistosome intermediate snail hosts in The Gambia.

PLoS Negl Trop Dis 2021 Oct 4;15(10):e0009823. Epub 2021 Oct 4.

School of Life Sciences, University of Nottingham, Nottingham, United Kingdom.

There is a need for recent information on intermediate snail hosts of schistosomes in The Gambia; the previous studies were conducted over three decades ago. This study assessed the incidence, species diversity, distribution and infection status of schistosome intermediate snail hosts in the country. Malacological surveys were conducted in all 5 regions of The Gambia: Central River Region (CRR), Upper River Region (URR), Western Region (WR), Lower River Region (LRR) and North Bank Region (NBR). Read More

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October 2021

Hidden Diversity Revealed in the Freshwater Snails, Bythinella and Pseudamnicola, in the Island of Crete.

Integr Zool 2021 Oct 2. Epub 2021 Oct 2.

Section of Ecology and Taxonomy, Department of Biology, National and Kapodistrian University of Athens, Athens, GR-15784, Greece.

Crete with its complex geomorphological history is the island with the highest number of endemism observed in animal and plant taxa throughout the Aegean archipelago. While other groups of organisms within Crete are well-studied, the freshwater gastropod fauna still remains poorly investigated. Bythinella and Pseudamnicola, are two genera of freshwater springsnails, both present on the island, inhabiting springs and other freshwater habitats. Read More

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October 2021

Biochemical, physiological (haematological, oxygen-consumption rate) and behavioural effects of mercury exposures on the freshwater snail, Bellamya bengalensis.

Comp Biochem Physiol C Toxicol Pharmacol 2021 Sep 28;251:109195. Epub 2021 Sep 28.

Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy. Electronic address:

The widespread occurrence of Mercury (Hg) and its derivatives in the aquatic environment and risks to the health of local populations has necessitated investigations into its toxic effects on sessile species. The toxicity of Mercury was observed sequentially from 96 h acute exposure regime (behavioural endpoints) to chronic durations (haematological and biochemical toxicity endpoints) in Bellamya bengalensis. Time-dependent lethal endpoints for acute toxicity (LC50) of mercury i. Read More

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September 2021

Fascioliasis in Llama, , in Andean Endemic Areas: Experimental Transmission Capacity by the High Altitude Snail Vector and Epidemiological Analysis of Its Reservoir Role.

Animals (Basel) 2021 Sep 14;11(9). Epub 2021 Sep 14.

Departamento de Parasitologia, Facultad de Farmacia, Universidad de Valencia, Av. Vicent Andres Estelles s/n, 46100 Burjassot, Valencia, Spain.

South American camelids are definitive hosts of . However, their capacity to participate in the transmission and epidemiology of fascioliasis has never been appropriately studied. Therefore, an isolate from Argentine llama is for the first time analyzed using lymnaeids from Bolivia. Read More

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September 2021


J Parasitol 2021 Sep;107(5):739-761

Department of Integrative Biology, 501 Life Sciences West, Oklahoma State University, Stillwater, Oklahoma 74078.

The role of invertebrates in some acanthocephalan life cycles is unclear because juvenile acanthocephalans are difficult to identify to species using morphology. Most reports suggest acanthocephalans from turtle definitive hosts use ostracods as intermediate hosts and snails as paratenic hosts. However, laboratory studies of the life cycle suggest that ostracods and snails are both required hosts in the life cycle. Read More

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September 2021

Mechanism of action and toxicological evaluation of engineered layered double hydroxide nanomaterials in Biomphalaria alexandrina snails.

Environ Sci Pollut Res Int 2021 Sep 21. Epub 2021 Sep 21.

Nanophotonics and Applications (NPA) lab, Polymer Research Laboratory, Chemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef, 62511, Egypt.

Layered double hydroxide (LDH) nanomaterials have recently become immense research area as it is used widely in industries. So, it's chance of their release into natural environment and risk assessment to nontarget aquatic invertebrate increasing. So, the present study aimed to synthesize and confirm the crystalline formation of Co-Cd-Fe LDHs and Co-Cd-Fe/PbI (LDH) and then to investigate the toxic impact of the two LDH on the adult freshwater snails (Biomphalaia alexandrina). Read More

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September 2021

It's a worm-eat-worm world: Consumption of parasite free-living stages protects hosts and benefits predators.

J Anim Ecol 2021 Sep 20. Epub 2021 Sep 20.

Department of Ecology and Evolutionary Biology, University of Colorado at Boulder, Boulder, CO, USA.

Predation on parasites is a common interaction with multiple, concurrent outcomes. Free-living stages of parasites can comprise a large portion of some predators' diets and may be important resources for population growth. Predation can also reduce the density of infectious agents in an ecosystem, with resultant decreases in infection rates. Read More

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September 2021

Single molecule real-time sequencing revealing novel insights on the response to estrogen and androgen exposure in freshwater snails.

Aquat Toxicol 2021 Oct 28;239:105953. Epub 2021 Aug 28.

State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China. Electronic address:

The molecular mode of action underpinning the response of mollusks exposure to endocrine disrupting chemicals (EDCs) remains unclear due to a lack of available information regarding their genome. Single molecule real-time (SMRT) sequencing makes it possible to reveal molecular mechanisms by direct sequencing of full-length transcripts. In the present study, the transcriptome profile of the freshwater snail Parafossarulus striatulus after exposure to 17β-estradiol (E2) or 17α-methyltestosterone (MT) was evaluated using SMRT sequencing strategy. Read More

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October 2021

MALDI-TOF mass spectrometry for the identification of freshwater snails from Senegal, including intermediate hosts of schistosomes.

PLoS Negl Trop Dis 2021 Sep 13;15(9):e0009725. Epub 2021 Sep 13.

IHU-Méditerranée Infection, Marseille, France.

Freshwater snails of the genera Biomphalaria, Bulinus, and Oncomelania are intermediate hosts of schistosomes that cause human schistosomiasis, one of the most significant infectious neglected diseases in the world. Identification of freshwater snails is usually based on morphology and potentially DNA-based methods, but these have many drawbacks that hamper their use. MALDI-TOF MS has revolutionised clinical microbiology and has emerged in the medical entomology field. Read More

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September 2021

Molluscicides against the snail-intermediate host of Schistosoma: a review.

Parasitol Res 2021 Oct 6;120(10):3355-3393. Epub 2021 Sep 6.

Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China.

Schistosomiasis, a neglected tropical disease (NTD), is one of the most prevalent parasitoses in the World. Certain freshwater snail species are the intermediate host in the life cycle of schistosome species. Controlling snails employing molluscicides is an effective, quick, and convenient intervention strategy to prevent the spread of Schistosoma species in endemic regions. Read More

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October 2021

Bold Behavior Is Associated with Genes That Regulate Energy Use but Does Not Covary with Body Condition in Food-Restricted Snails.

Physiol Biochem Zool 2021 Nov-Dec;94(6):366-379

AbstractTheoretical models about the relationship between food restriction and individual differences in risk-taking behavior (i.e., boldness) have led to conflicting predictions: some models predict that food restriction increases boldness, while other models predict that food restriction decreases boldness. Read More

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September 2021

infection of freshwater crab and melaniid snails in Cadacan River in Irosin, Sorsogon, Philippines.

J Parasit Dis 2021 Sep 8;45(3):634-642. Epub 2021 Jan 8.

Animal Biology Division, Institute of Biological Sciences, University of the Philippines Los Baños, Los Banos, 4031 Laguna Philippines.

Paragonimiasis, the disease caused by , is transmitted primarily by freshwater crabs in the Philippines. Human infection has been recorded, but there is a dearth of published information on the extent of infection in animal reservoirs, particularly in crabs and snails. This study aimed to investigate the infection status and risk factors of in freshwater crabs and melaniid snails collected in an endemic village along Cadacan River in Irosin, Sorsogon, where human cases of paragonimiasis were previously reported. Read More

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September 2021

Reproductive aspects of the poorly known and critically endangered freshwater snail (Gastropoda: Truncatelloidea).

PeerJ 2021 17;9:e11550. Epub 2021 Aug 17.

Departamento de Ciencias Básicas, Facultad de Ciencias, Universidad del Bío-Bío, Chillán, Chile.

Knowing the reproductive biology of threatened species is essential for conservation and to establish proper management plans. , a freshwater snail only known from two locations in the Atacama Saltpan, northern Chile, is currently classified as Data Deficient on the IUCN Red List and Critically Endangered by the Ministerio del Medio Ambiente of Chile. Based on size-frequency distribution, multivariate analysis of shell measurements, and microdissections, we studied the reproductive strategy, recruitment period, sex ratio and sexual dimorphism in this species. Read More

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Genetic characterisation of cercarial stages of Jue Sue and Platt, 1998 (Digenea: Choanocotylidae) in a native Australian freshwater snail, (Tryon).

Int J Parasitol Parasites Wildl 2021 Dec 12;16:48-51. Epub 2021 Aug 12.

School of Animal and Veterinary Sciences, Charles Sturt University, Wagga, Wagga, 2678, Australia.

(Tryon, 1866) is a native freshwater snail, belonging to the family Planorbidae, commonly found on aquatic vegetation in south eastern parts of Australia. In the present study, we report natural infection with a species of Jue Sue and Platt, 1998 (Digenea: Choanocotylidae) parasite in inland Australia for the first time, followed by characterisation of the parasite using both morphological and molecular approaches. Snails (n = 150) were collected from recently drained, natural ponds at a local fish farm located in the Riverina region, New South Wales, Australia. Read More

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December 2021

Invasive snails, parasite spillback, and potential parasite spillover drive parasitic diseases of Hippopotamus amphibius in artificial lakes of Zimbabwe.

BMC Biol 2021 08 20;19(1):160. Epub 2021 Aug 20.

Department of Biology, Royal Museum for Central Africa, Tervuren, Belgium.

Background: Humans impose a significant pressure on large herbivore populations, such as hippopotami, through hunting, poaching, and habitat destruction. Anthropogenic pressures can also occur indirectly, such as artificial lake creation and the subsequent introduction of invasive species that alter the ecosystem. These events can lead to drastic changes in parasite diversity and transmission, but generally receive little scientific attention. Read More

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Efficacy and Nontarget Effects of a Spinosad-Based Larvicide in Minnesota Vernal Pools and Cattail Marshes.

J Am Mosq Control Assoc 2021 Sep;37(3):125-131

Larvicides that contain spinosad, a bacterial metabolite, are used to control mosquitoes in diverse aquatic habitats. These same habitats are home to other invertebrates, including Crustacea-fairy shrimp, isopods, and amphipods-and mollusks-fingernail clams and freshwater snails. A double-blind study evaluated the effects of Natular® G, a granular treatment containing spinosad, on spring Aedes spp. Read More

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September 2021

Revisiting a 135-year-old Taxonomic Account of the Freshwater Snail : Designating its Lectotype and Describing a New Species of the genus (Mollusca: Gastropoda: Semisulcospiridae).

Zool Stud 2021 17;60:e7. Epub 2021 Mar 17.

Department of Zoology, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan. E-mail: (Nakano).

The type series of Boettger, 1886 was found in the Malacological Collection at the Senckenberg Naturmuseum for the first time ca. 135 years after its original description. The syntypes consisted of 38 specimens that can be classified into four species. Read More

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The impacts of past, present and future ocean chemistry on predatory planktonic snails.

R Soc Open Sci 2021 Aug 4;8(8):202265. Epub 2021 Aug 4.

Plankton Diversity and Evolution, Naturalis Biodiversity Center, Leiden, The Netherlands.

The atlantid heteropods represent the only predatory, aragonite shelled zooplankton. Atlantid shell production is likely to be sensitive to ocean acidification (OA), and yet we know little about their mechanisms of calcification, or their response to changing ocean chemistry. Here, we present the first study into calcification and gene expression effects of short-term OA exposure on juvenile atlantids across three pH scenarios: mid-1960s, ambient and 2050 conditions. Read More

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Effects of the anxiolytic benzodiazepine oxazepam on freshwater gastropod reproduction: a prospective study.

Ecotoxicology 2021 Aug 11. Epub 2021 Aug 11.

Biochimie et Toxicologie des Substances Bioactives, EA 7417, INU Champollion, Albi, France.

Psychoactive drugs have emerged as contaminants over the last few decades. These drugs are frequently prescribed and poorly eliminated by wastewater treatment plants, and many are present at non-negligible concentrations in surface waters. Several studies have investigated the non-target organism toxicity of one such drug, oxazepam, a benzodiazepine anxiolytic frequently detected in rivers. Read More

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Are Freshwater Snails, sp. and Invasive (Gastropoda: Thiaridae) Suitable Intermediate Hosts for (Trematoda: Paramphistomoidea)? An Experimental Study.

Front Vet Sci 2021 21;8:705954. Epub 2021 Jul 21.

School of Life Science, College of Agriculture, Engineering and Science, University of KwaZulu-Natal, Westville Campus, Durban, South Africa.

Prosobranch snails and adult Paramphistomoidea flukes were collected from water bodies and cattle abattoir located in Mpumalanga province of South Africa, respectively. The snails were identified based on morphological characters as well as the ITS-2 and 16S markers as sp. and , respectively, and the Paramphistomoidea flukes were identified as using the ITS-1/5. Read More

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The relationship between Schistosoma and glycolipid metabolism.

Microb Pathog 2021 Oct 4;159:105120. Epub 2021 Aug 4.

Department of Endocrinology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, 212001, China. Electronic address:

Diabetes and obesity have become the most popular metabolic diseases in the world. A large number of previous studies have shown that glucose and lipid metabolism disorder is an important risk factor and a main cause of diabetes and obesity. Schistosoma is a parasite transmitted by freshwater snails. Read More

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October 2021

Small-sized omnivorous fish induce stronger effects on food webs than warming and eutrophication in experimental shallow lakes.

Sci Total Environ 2021 Nov 13;797:148998. Epub 2021 Jul 13.

Department of Bioscience, Aarhus University, Silkeborg 8600, Denmark; Sino-Danish Centre for Education and Research (SDC), Beijing 100049, China; Limnology Laboratory, Department of Biological Sciences and Centre for Ecosystem Research and Implementation, Middle East Technical University, Ankara, Turkey; Institute of Marine Sciences, Middle East Technical University, Mersin, Turkey.

Warming, eutrophication, and increased omnivory by small-sized fish are global change processes that induce major effects on the food web structure and primary producers of shallow lakes. Despite the key relevance of phytoplankton and periphyton in freshwaters, the combined and potential synergistic effects of fish omnivory, warming and eutrophication, especially on periphyton, remains little addressed, particularly for subtropical shallow lakes. We experimentally tested the food web effects on phytoplankton and periphyton induced by small visually feeding omnivorous fish (Rhodeus ocellatus), high nutrient enrichment and warming (+4. Read More

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November 2021

Diversity of echinostomes (Digenea: Echinostomatidae) in their snail hosts at high latitudes.

Parasite 2021 28;28:59. Epub 2021 Jul 28.

Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, Branišovská 31, 370 05 České Budějovice, Czech Republic - Institute of Ecology, Nature Research Centre, Akademijos 2, 08412 Vilnius, Lithuania.

The biodiversity of freshwater ecosystems globally still leaves much to be discovered, not least in the trematode parasite fauna they support. Echinostome trematode parasites have complex, multiple-host life-cycles, often involving migratory bird definitive hosts, thus leading to widespread distributions. Here, we examined the echinostome diversity in freshwater ecosystems at high latitude locations in Iceland, Finland, Ireland and Alaska (USA). Read More

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The particle size distribution of environmental DNA varies with species and degradation.

Sci Total Environ 2021 Nov 20;797:149175. Epub 2021 Jul 20.

Department of Environmental Biology, Institute of Environmental Sciences, Leiden University, Einsteinweg 2, 2333 CC Leiden, Netherlands.

Environmental DNA (eDNA) analysis is frequently used as a non-invasive method to investigate species and biodiversity in ecosystems. However, such eDNA may represent both organisms currently present as well as species that released their DNA some point in the past, thereby representing a mix of current and historic biodiversity. This may lead to a false-positive detection of organisms' presence. Read More

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November 2021

Toxicity and genotoxicity of domestic sewage sludge in the freshwater snail Biomphalaria glabrata (Say, 1818).

Environ Sci Pollut Res Int 2021 Jul 22. Epub 2021 Jul 22.

Departamento de Biofísica e Radiobiologia, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil.

Waste produced in homes is one of the main sources of pollutants in freshwater ecosystems. Therefore, it is imperative to implement methodologies that aid in environmental monitoring procedures. The use of organisms as biomonitors has grown increasingly prevalent as they are models that provide data that can be adequately evaluated. Read More

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Eye fluke effects on Danish freshwater fish: Field and experimental investigations.

J Fish Dis 2021 Nov 21;44(11):1785-1798. Epub 2021 Jul 21.

Laboratory of Aquatic Pathobiology, Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg C, Denmark.

Eye flukes in fish are common in freshwater lakes. Fish become infected by the penetration of cercariae released from freshwater snails, and high infection pressures may be associated with mortalities in a Danish lake. Examination of two other freshwater lakes, combined with laboratory study, supported the notion. Read More

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November 2021