Ambient fauna impairs parasite transmission in a marine parasite-host system
SUMMARY To understand possible factors controlling transmission of trematode larvae between first and second intermediate hosts we examined the impact of ambient fauna on parasite transmission in a marine intertidal parasite-host association. Cockle hosts ( Cerastoderma edule ) kept together with se...
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Cambridge University Press (CUP)
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Online Access: | http://dx.doi.org/10.1017/s0031182008004526 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0031182008004526 |
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crcambridgeupr:10.1017/s0031182008004526 2024-06-16T07:39:33+00:00 Ambient fauna impairs parasite transmission in a marine parasite-host system THIELTGES, D. W. BORDALO, M. D. CABALLERO HERNÁNDEZ, A. PRINZ, K. JENSEN, K. T. 2008 http://dx.doi.org/10.1017/s0031182008004526 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0031182008004526 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Parasitology volume 135, issue 9, page 1111-1116 ISSN 0031-1820 1469-8161 journal-article 2008 crcambridgeupr https://doi.org/10.1017/s0031182008004526 2024-05-22T12:55:33Z SUMMARY To understand possible factors controlling transmission of trematode larvae between first and second intermediate hosts we examined the impact of ambient fauna on parasite transmission in a marine intertidal parasite-host association. Cockle hosts ( Cerastoderma edule ) kept together with selected co-occurring macrozoobenthic species in mesocosms acquired a lower parasite load compared to cockles kept alone, when targeted by cercariae of the trematode Himasthla elongata . The reduction of parasite load in the cockles differed between the 7 macrozoobenthic species tested and was between 35 and 91%. Three different types of reduction could be distinguished: (1) predators ( Carcinus maenas, Crangon crangon ) actively preying upon cercariae, (2) non-host filter feeders ( Crepidula fornicata , Mya arenaria, Crassostrea gigas ) filtering cercariae but not becoming infected and (3) alternative hosts ( Mytilus edulis, Macoma balthica ) becoming infected by the cercariae and thus distracting cercariae from the target hosts. In addition, interference competition may occur in the form of disturbance of cockles by ambient organisms resulting in lower filtration rates and subsequently lower parasite loads. Our results suggest that the species composition and relative abundance of the ambient fauna of parasite-host systems play an important role in controlling trematode transmission rates in benthic marine systems. Article in Journal/Newspaper Crassostrea gigas Cambridge University Press Parasitology 135 9 1111 1116 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
SUMMARY To understand possible factors controlling transmission of trematode larvae between first and second intermediate hosts we examined the impact of ambient fauna on parasite transmission in a marine intertidal parasite-host association. Cockle hosts ( Cerastoderma edule ) kept together with selected co-occurring macrozoobenthic species in mesocosms acquired a lower parasite load compared to cockles kept alone, when targeted by cercariae of the trematode Himasthla elongata . The reduction of parasite load in the cockles differed between the 7 macrozoobenthic species tested and was between 35 and 91%. Three different types of reduction could be distinguished: (1) predators ( Carcinus maenas, Crangon crangon ) actively preying upon cercariae, (2) non-host filter feeders ( Crepidula fornicata , Mya arenaria, Crassostrea gigas ) filtering cercariae but not becoming infected and (3) alternative hosts ( Mytilus edulis, Macoma balthica ) becoming infected by the cercariae and thus distracting cercariae from the target hosts. In addition, interference competition may occur in the form of disturbance of cockles by ambient organisms resulting in lower filtration rates and subsequently lower parasite loads. Our results suggest that the species composition and relative abundance of the ambient fauna of parasite-host systems play an important role in controlling trematode transmission rates in benthic marine systems. |
format |
Article in Journal/Newspaper |
author |
THIELTGES, D. W. BORDALO, M. D. CABALLERO HERNÁNDEZ, A. PRINZ, K. JENSEN, K. T. |
spellingShingle |
THIELTGES, D. W. BORDALO, M. D. CABALLERO HERNÁNDEZ, A. PRINZ, K. JENSEN, K. T. Ambient fauna impairs parasite transmission in a marine parasite-host system |
author_facet |
THIELTGES, D. W. BORDALO, M. D. CABALLERO HERNÁNDEZ, A. PRINZ, K. JENSEN, K. T. |
author_sort |
THIELTGES, D. W. |
title |
Ambient fauna impairs parasite transmission in a marine parasite-host system |
title_short |
Ambient fauna impairs parasite transmission in a marine parasite-host system |
title_full |
Ambient fauna impairs parasite transmission in a marine parasite-host system |
title_fullStr |
Ambient fauna impairs parasite transmission in a marine parasite-host system |
title_full_unstemmed |
Ambient fauna impairs parasite transmission in a marine parasite-host system |
title_sort |
ambient fauna impairs parasite transmission in a marine parasite-host system |
publisher |
Cambridge University Press (CUP) |
publishDate |
2008 |
url |
http://dx.doi.org/10.1017/s0031182008004526 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0031182008004526 |
genre |
Crassostrea gigas |
genre_facet |
Crassostrea gigas |
op_source |
Parasitology volume 135, issue 9, page 1111-1116 ISSN 0031-1820 1469-8161 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0031182008004526 |
container_title |
Parasitology |
container_volume |
135 |
container_issue |
9 |
container_start_page |
1111 |
op_container_end_page |
1116 |
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1802006305780531200 |