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Survey on limnic gastropods: relationships between human health and conservation
Coelho, P.R.S.; Ker, F.T.O.; Araujo, A.D.; Pinto, H.A.; Negrão-Corrêa, D.A.; Caldeira, R.L.; Geiger, S.M. (2022). Survey on limnic gastropods: relationships between human health and conservation. Pathogens 11(12): 1533. https://dx.doi.org/10.3390/pathogens11121533
In: Pathogens. MDPI: Basel. e-ISSN 2076-0817
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| Trefwoorden |
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| Author keywords |
malacofauna; freshwater snails; diversity; environmental characterization; trematodes; cercariae |
| Auteurs | | Top |
- Coelho, P.R.S.
- Ker, F.T.O.
- Araujo, A.D.
- Pinto, H.A.
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- Negrão-Corrêa, D.A.
- Caldeira, R.L.
- Geiger, S.M.
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| Abstract |
The present work aimed to study ecological aspects related to the distribution pattern of medically important and native freshwater mollusks, found in a rural municipality in the state of Minas Gerais, Brazil. Malacological captures were carried out in aquatic environments (lentic and lotic) from 46 locations between October 2018 and September 2019. The collected specimens were subjected to taxonomic identification and evaluation for infection with trematode larvae. Qualitative data were used to analyze the similarity and the odds ratios between the environmental variables. In total, 1125 specimens were sampled, belonging to the following species: Biomphalaria glabrata, B. tenagophila, B. straminea, B. kuhniana, B. cousini, Biomphalaria sp., and Drepanotrema cimex (Planorbidae), Stenophysa marmorata (Physidae), Omalonyx sp. (Succineidae), Pseudosuccinea columella (Lymnaeidae), and Pomacea sp. (Ampullaridae). Echinostome, strigeocercaria, and xiphidiocercaria types of larval trematodes were detected in S. marmorata and D. cimex. Of note was the similarity in the distribution of S. marmorata, a supposedly endangered species, with that of the medically important Biomphalaria species, with the two sharing environments. This complex scenario led us to reflect on and discuss the need for the control of important intermediate hosts, as well as the conservation of endangered species. This relevant issue has not yet been discussed in detail, in Brazil or in other countries that recommend snail control. |
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