Avian schistosome species in Danish freshwater lakes: relation to biotic and abiotic factors
| Autor: | Petr Horák, Yajiao Duan, P. W. Kania, Anette Bygum, Louise von Gersdorff Jørgensen, Azmi Al-Jubury, Kurt Buchmann, Eva Susanna Tracz |
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| Rok vydání: | 2021 |
| Předmět: |
0301 basic medicine
Denmark 030231 tropical medicine Snails Zoology Cercarial Dermatitis Birds 03 medical and health sciences 0302 clinical medicine Schistosomatidae parasitic diseases medicine Animals Schistosomiasis Swimmer's itch Trichobilharzia regenti Abiotic component Larva Biotic component biology Host (biology) Bird Diseases Intermediate host General Medicine biology.organism_classification medicine.disease Lakes 030104 developmental biology Animal Science and Zoology Parasitology |
| Zdroj: | Al-Jubury, A, Duan, Y, Kania, P, Tracz, E S, Bygum, A, Jørgensen, L V G, Horák, P & Buchmann, K 2021, ' Avian schistosome species in Danish freshwater lakes relation to biotic and abiotic factors ', Journal of Helminthology, vol. 95, e22 . https://doi.org/10.1017/S0022149X21000122 Al-Jubury, A, Duan, Y, Kania, P W, Tracz, E S, Bygum, A, Jørgensen, L V G, Horák, P & Buchmann, K 2021, ' Avian schistosome species in Danish freshwater lakes : relation to biotic and abiotic factors ', Journal of Helminthology, vol. 95, e22 . https://doi.org/10.1017/S0022149X21000122 |
| ISSN: | 1475-2697 |
| Popis: | Due to the increased prevalence of human infections with bird schistosome larvae (cercarial dermatitis) associated with bathing in Danish lakes, a nationwide survey of infected intermediate host snails was conducted in 2018–2020. Pulmonate snails (10,225 specimens) were collected from 39 freshwater lakes (in the four major geographic regions in Denmark) and subjected to shedding. Released schistosome cercariae were isolated and identified by polymerase chain reaction and sequencing whereby Trichobilharzia regenti, Trichobilharzia franki, Trichobilharzia szidati and Trichobilharzia anseri were recorded. Infections were primarily determined by biotic factors such as the presence of final host birds and intermediate host snails and water temperature was noted as an important abiotic parameter associated with the infection. No clear connection with other abiotic factors (conductivity, alkalinity, pH, nitrogen, phosphorous) was seen. The widespread occurrence of infected snails, when compared to previous investigations, suggests that climate changes at northern latitudes could be responsible for the increased risk of contracting cercarial dermatitis. |
| Databáze: | OpenAIRE |
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