Spatial analysis and identification of environmental risk factors affecting the distribution of Indoplanorbis and Lymnaea species in semi-arid and irrigated areas of Haryana, India

Sangwan, A. K.; Jackson, Ben; Glanville, William A. de; Pfeiffer, Dirk U.; Stevens, Kim

doi:10.1016/j.parepi.2016.05.005

Cited by 15 publications

(10 citation statements)

References 19 publications

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“…A non-operculate snail Indoplanorbis exustus (Deshayes, 1834) (Gastropoda: Planorbidae), which is passably morphologically similar to the non-native snail P. corneus, was considered as an alternative prey. The native planorbid snail, I. exustus is common in different parts of India, including West Bengal, bearing significance in helminth disease transmission (Malek & Cheng 1974;Biswas 1991;Sangwan et al 2016) as well as multifunctional roles in the maintenance of the community structure functions (Raut 1981). Therefore, it would be appealing to study how native predatory G. weberi interact with non-native P. corneus prey when presented with native I. exustus prey in the same habitat.…”

Section: Introductionmentioning

confidence: 99%

Choosing exotic over the familiar taste: habitat-specific preferences of a malacophagous leech for freshwater snails as prey gastropod establishment?

Paul¹,

Karmakar²,

Aditya³

2020

EuroJEcol

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The spread of freshwater invasive species through aquarium trade poses a threat to the ecosystem, economy and human health. The availability of the exotic freshwater gastropod mollusc, Planorbarius corneus (Linnaeus, 1758) (Gastropoda: Planorbidae), in pet shops in Kolkata, West Bengal, India, raises concern for its potential establishment as an invasive species. Assuming the role of the native predators as a potential biotic barrier for invasion, observations on the predation pattern of the malacophagous leech, Glossiphonia weberi (Blanchard, 1897) (Clitellata: Glossiphoniidae) against P. corneus was made in single as well as in combination with the native snail Indoplanorbis exustus (Deshayes, 1834) (Gastropoda: Planorbidae). Using varying size classes and densities of P. corneus, the predation potential of G. weberi was estimated after a 24 hour period. In another set of experiments, the predation of G. weberi against the snail P. corneus was observed in the presence of I. exustus under four different habitat conditions. The purpose was to justify - (1) the effect of conspecific and heterospecific conditions of the prey availability and (2) the effect of habitat complexity on the predatory efficacy of G. weberi. The results indicated that G. weberi consumed varied numbers of P. corneus, depending on the size and the densities of the prey and predator. Although the prey heterogeneity and complex habitats caused significant reduction of predation on both of the prey species, G. weberi significantly preferred P. corneus over I. exustus in open (P < 0.0001), macrophyte (P = 0.002) and pebbles and macrophyte containing habitats (P < 0.0001). Apparently, G. weberi preferred the exotic snail P. corneus in presence of alternative prey snail I. exustus, under different habitat conditions. Therefore, G. weberi may act as a significant biotic resistance against the colonization and establishment of P. corneus in the Indian context. However, further studies including the multiple prey and predators are required to ascertain the food web level impact of the exotic snail P. corneus in invaded freshwater ecosystems.

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Section: Introductionmentioning

confidence: 99%

Choosing exotic over the familiar taste: habitat-specific preferences of a malacophagous leech for freshwater snails as prey gastropod establishment?

Paul¹,

Karmakar²,

Aditya³

2020

EuroJEcol

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“…The snail species such as L. natalensis were found in 38 sites of the total sampling sites in all land-use types while L. truncatula was collected from seven sampling sites of Omo-Gibe river basin in all land-use types except in Forest and Shrubs land. This was supported by Sangwan et al[39] that Lymnaea species is prevalence at Settlements areas. Moreover, from this study, B. pfefferi was found frequently from Farmland followed by Settlement areas.…”

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confidence: 57%

Effects of land use on intermediate snail host fauna, abundance, distribution and cercariae infection rate in Omo-Gibe river basin, Ethiopia

Deribew

Jaleta

Mandefro

et al. 2020

Preprint

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Background: Land use and land cover change significantly affects biodiversity, abundance and distribution of intermediate snail host fauna. In Omo-Gibe river basin the extent of land-use change is high due to anthropogenic activities leading to habitat change of freshwater snail intermediate hosts. Most intermediate snail hosts of human Schistosome parasites belong to two genera, Biomphalaria and Bulinus. In Addition, Lymnea spp. is another important host of Fasciola which causes fasciolasis in domestic animals and human. This study aims to assess the effects of land-use on the distribution and abundance of freshwater snail intermediate hosts and cercariae infection rates of fresh water intermediate snail hosts in Omo-Gibe River basin, Ethiopia.Methods: This study was conducted in Omo-Gibe river basin in 130 sampling sites which include rivers, lakes, dams, stream, wetlands and irrigation ditches. At each site data on land use, anthropogenic activities, freshwater snail abundance and species diversity, and water samples were collected. Snails were collected from each sampling sites using a scoop (20cm x 30cm) with a mesh size of 300µm. Snails were sorted by genus on Enamel pan using forceps and preserved in labeled vials containing 75% ethanol. Live snails collected from the same habitat were sorted carefully and put in clean plastic buckets half filled with water. Afterwards, snails were provided with fresh lettuce leaves and maintained in the laboratory. Snails were then identified morphologically to family, genus and to species level. Each snail was examined for cercaria shedding by placing in a petri dish containing water and exposed to the sun for 2 hours. Cercariae were morphologically identified by microscopy. ArcGIS software of version 10.3.1 was used to map snail distribution and data were analysed using SPSS version-20.Results: The results obtained in this study shows clearly that land use change affect the distribution and abundance of fresh water snails in Omo-Gibe river basin. Fresh water snails were more abundant in farmland and settlement areas. Of the total 2,559 freshwater snails collected from 130 surveyed sites in Omo-Gibe river basin, 1749 (68.34%) belongs to medically important snail species. Biomphalaria spp.914 (35.7%),, Lymnea spp.439 (17.1%),, Physa spp. 343(13.4%) and Bulinus spp 53 (2%)). Sphaeriidae group accounted for 810 (31.6%) of the collected specimens. Biomphalaria pfeifferi was the predominant species of the total snail sampled from lakes, wetlands, rivers and irrigation ditches. Biomphalaria pfeifferi was the most infected snail species by different cercariae. Bulinus globosus and L.natalensis were infected by more than one and same type of cercariae. However, none of B. sudanica and P. acuta specimens was infected by trematode.Conclusions: The results of this study revealed that land use change altered the abundance, distribution and diversity of medically important fresh water snails in the study area. In general medically important freshwater snails which include: Biomphalaria spp, Bulinus spp and Lymnaea spp were collected from lakes, rivers, wetlands, irrigation ditches.. The medically important snail species found infected by cercaria are L. natalensis, B. pfeifferi and B. globosus. Biomphalaria pfefferi was the predominant species and highly infected by cercariae. Higher infection rate was observed in snails collected in Farmland (16.59%) and Grassland (36.6%).

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“…Faktor lingkungan tersebut meliputi suhu air, pH air, polutan dalam air dan vegetasi. Kelimpahan larva trematoda pada siput tergantung pada umur dan ukuran tubuh siput, densitas populasi siput dan komopatibilitas siput (Goedknegt et al, 2015;Sangwan et al, 2016;Smyth, 1962;Studer dan Poulin, 2013;Suhardono dan Copeman, 2000;Tigga et al, 2014) Pada penelitian Ni Made dan Ni Wayan (2019) menunjukkan bahwa gastropoda yang ditemukan di beberapa habitat persawahan dengan ketinggian Soenarwan Hery Poerwanto * , Dian Antika Kusuma Dewi , dan Giyantolin berbeda adalah sebanyak lima jenis yang tergolong kedalam empat famili (Lymnaea rubiginosa, 1-500 mdpl; Digoniostoma truncatum, 1-500 mdpl; Melanoides tuberculata, 1-300 mdpl; Melanoides maculata, 1-300 mdpl; P. canaliculata, < 100 mdpl). Penelitian lain telah dilakukan pada siput inang perantara, sebagian besar fokus pada spesies inang antara spesifik yang terinfeksi trematoda tertentu.…”

Section: Pendahuluanunclassified

Larva Trematoda Pada Siput Air Tawar Di Areal Persawahan Daerah Istimewa Yogyakarta

2020

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The life cycle of Digenea subclass trematodes that mostly involves snails as intermediate host in the larval stage in the form of sporocysts, redia and cercariae. This study aims to determine the species of freshwater snails, populations and stages of trematoda larvae that infect freshwater snails in the paddy fields and also the factors that influence the population of trematoda larvae. This research method uses purposive random sampling. Snails were collected from paddy fields in Sleman Regency, Yogyakarta City and Bantul Regency, Special Region of Yogyakarta. Snails and Trematodes larvae were identified based on morphological characters with a microscope. The results showed that the species of freshwater snail as an inang antara of Trematode was Lymnaea sp. (96.9%), Pomacea canaliculata (2.6%), and Brotia sp. (0.5%). The total population of trematoda larvae in freshwater snails was 4329 individuals with the largest population in Sleman Regency (2784 individuals). Trematode larval stages found were sporocysts (4.8%), redia (8.3%), Leptocercous type cercariae (35.2%), and Furcocercous type cercariae (51.7%). The most trematode larvae found in fresh water snail was Furcocercous type cercariae. Factor affecting trematode larvae population are the species and abundance of freshwater snail.

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Spatial analysis and identification of environmental risk factors affecting the distribution of Indoplanorbis and Lymnaea species in semi-arid and irrigated areas of Haryana, India

Cited by 15 publications

References 19 publications

Choosing exotic over the familiar taste: habitat-specific preferences of a malacophagous leech for freshwater snails as prey gastropod establishment?

Choosing exotic over the familiar taste: habitat-specific preferences of a malacophagous leech for freshwater snails as prey gastropod establishment?

Effects of land use on intermediate snail host fauna, abundance, distribution and cercariae infection rate in Omo-Gibe river basin, Ethiopia

Larva Trematoda Pada Siput Air Tawar Di Areal Persawahan Daerah Istimewa Yogyakarta

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