Trematode diversity reflecting the community structure of Danish freshwater systems: molecular clues

Abstract Background Digenean trematodes are parasitic platyhelminths that use several hosts in their life cycles and are thereby embedded in various ecosystems affected by local environmental conditions. Their presence in a habitat will reflect the presence of different host species and, as such, th...

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Main Authors: Yajiao Duan, Azmi Al-Jubury, Per Walter Kania, Kurt Buchmann
Format: Article
Language:English
Published: BMC 2021-01-01
Series:Parasites & Vectors
Subjects:
Online Access:https://doi.org/10.1186/s13071-020-04536-x
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author Yajiao Duan
Azmi Al-Jubury
Per Walter Kania
Kurt Buchmann
author_facet Yajiao Duan
Azmi Al-Jubury
Per Walter Kania
Kurt Buchmann
author_sort Yajiao Duan
collection DOAJ
description Abstract Background Digenean trematodes are parasitic platyhelminths that use several hosts in their life cycles and are thereby embedded in various ecosystems affected by local environmental conditions. Their presence in a habitat will reflect the presence of different host species and, as such, they can serve as ecological indicators. Only limited information on the occurrence of trematodes and their link to other trophic levels in the Danish freshwater ecosystems is currently available.Therefore, the main aim of the present study was to increase our knowledge in this field. Methods Snails were sampled from 21 freshwater lakes in Denmark, following which shedding procedures were performed, cercariae were recoved and the released parasites were identified using molecular tools (PCR and sequencing). Results A total of 5657 snail hosts belonging to ten species were identified, revealing a highly diverse parasite fauna comprising 22 trematode species. The overall trematode prevalence was 12.6%, but large variations occurred between host species. The snail host Lymnaea stagnalis showed the highest prevalence and also exhibited the highest diversity, accounting for 47.6% of the species richness. Conclusions This survey contributes updated information on parasite–host relations and compatibility and may assist in describing the ecological structure of the investigated Danish freshwater ecosystems.
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spelling doaj.art-2e95c0b61347470d8c1e4f72d857b6a02022-12-21T19:02:34ZengBMCParasites & Vectors1756-33052021-01-0114111510.1186/s13071-020-04536-xTrematode diversity reflecting the community structure of Danish freshwater systems: molecular cluesYajiao Duan0Azmi Al-Jubury1Per Walter Kania2Kurt Buchmann3Laboratory of Aquatic Pathobiology, Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of CopenhagenLaboratory of Aquatic Pathobiology, Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of CopenhagenLaboratory of Aquatic Pathobiology, Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of CopenhagenLaboratory of Aquatic Pathobiology, Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of CopenhagenAbstract Background Digenean trematodes are parasitic platyhelminths that use several hosts in their life cycles and are thereby embedded in various ecosystems affected by local environmental conditions. Their presence in a habitat will reflect the presence of different host species and, as such, they can serve as ecological indicators. Only limited information on the occurrence of trematodes and their link to other trophic levels in the Danish freshwater ecosystems is currently available.Therefore, the main aim of the present study was to increase our knowledge in this field. Methods Snails were sampled from 21 freshwater lakes in Denmark, following which shedding procedures were performed, cercariae were recoved and the released parasites were identified using molecular tools (PCR and sequencing). Results A total of 5657 snail hosts belonging to ten species were identified, revealing a highly diverse parasite fauna comprising 22 trematode species. The overall trematode prevalence was 12.6%, but large variations occurred between host species. The snail host Lymnaea stagnalis showed the highest prevalence and also exhibited the highest diversity, accounting for 47.6% of the species richness. Conclusions This survey contributes updated information on parasite–host relations and compatibility and may assist in describing the ecological structure of the investigated Danish freshwater ecosystems.https://doi.org/10.1186/s13071-020-04536-xTrematodeSnailsDiversityMolecular identificationFreshwater lakes
spellingShingle Yajiao Duan
Azmi Al-Jubury
Per Walter Kania
Kurt Buchmann
Trematode diversity reflecting the community structure of Danish freshwater systems: molecular clues
Parasites & Vectors
Trematode
Snails
Diversity
Molecular identification
Freshwater lakes
title Trematode diversity reflecting the community structure of Danish freshwater systems: molecular clues
title_full Trematode diversity reflecting the community structure of Danish freshwater systems: molecular clues
title_fullStr Trematode diversity reflecting the community structure of Danish freshwater systems: molecular clues
title_full_unstemmed Trematode diversity reflecting the community structure of Danish freshwater systems: molecular clues
title_short Trematode diversity reflecting the community structure of Danish freshwater systems: molecular clues
title_sort trematode diversity reflecting the community structure of danish freshwater systems molecular clues
topic Trematode
Snails
Diversity
Molecular identification
Freshwater lakes
url https://doi.org/10.1186/s13071-020-04536-x
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AT azmialjubury trematodediversityreflectingthecommunitystructureofdanishfreshwatersystemsmolecularclues
AT perwalterkania trematodediversityreflectingthecommunitystructureofdanishfreshwatersystemsmolecularclues
AT kurtbuchmann trematodediversityreflectingthecommunitystructureofdanishfreshwatersystemsmolecularclues