Nematode eel parasite found inside acanthocephalan cysts - a "Trojan horse" strategy?
BackgroundThe invasive eel parasite Anguillicoloides crassus (syn. Anguillicola crassus) is considered one of the major causes for the decline of the European eel (Anguilla anguilla) panmictic population. It impairs the swim bladder function and reduces swimming performance of its host. The life cyc...
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Online Access: | https://doi.org/10.1186/s13071-014-0504-8 https://napier-repository.worktribe.com/file/178493/1/Nematode%20Eel%20Parasite%20Found%20Inside%20Acanthocephalan%20Cysts http://researchrepository.napier.ac.uk/id/eprint/7313 |
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ftnapieruniv:oai:repository@napier.ac.uk:178493 2024-05-19T07:28:35+00:00 Nematode eel parasite found inside acanthocephalan cysts - a "Trojan horse" strategy? Emde, Sebastian Rueckert, Sonja Kochmann, Judith Knopf, Klaus Sures, Bernd Klimpel, Sven 2014-11-18 https://doi.org/10.1186/s13071-014-0504-8 https://napier-repository.worktribe.com/file/178493/1/Nematode%20Eel%20Parasite%20Found%20Inside%20Acanthocephalan%20Cysts http://researchrepository.napier.ac.uk/id/eprint/7313 English eng BMC http://researchrepository.napier.ac.uk/id/eprint/7313 doi:https://doi.org/10.1186/s13071-014-0504-8 https://napier-repository.worktribe.com/file/178493/1/Nematode%20Eel%20Parasite%20Found%20Inside%20Acanthocephalan%20Cysts 1756-3305 10.1186/s13071-014-0504-8 openAccess http://creativecommons.org/licenses/by/4.0/ Parasitology Infectious Diseases 577.6 Freshwater ecology QH301 Biology Journal Article publishedVersion 2014 ftnapieruniv https://doi.org/10.1186/s13071-014-0504-8 2024-04-30T23:56:30Z BackgroundThe invasive eel parasite Anguillicoloides crassus (syn. Anguillicola crassus) is considered one of the major causes for the decline of the European eel (Anguilla anguilla) panmictic population. It impairs the swim bladder function and reduces swimming performance of its host. The life cycle of this parasite involves different intermediate and paratenic hosts. Despite an efficient immune system of the paratenic fish hosts acting against infections with A. crassus, levels of parasitized eels remain high in European river systems. Recently, the round goby Neogobius melanostomus (Gobiidae) has become dominant in many rivers in Europe and is still spreading at a rapid pace. This highly invasive species might potentially act as an important, so far neglected paratenic fish host for A. crassus.MethodsBased on own observations and earlier single sightings of A. crassus in N. melanostomus, 60 fresh individuals of N. melanostomus were caught in the Rhine River and examined to assess the infection levels with metazoan parasites, especially A. crassus. Glycerin preparations were used for parasite identification.ResultsThe parasite most frequently found in N. melanostomus was the acanthocephalan Pomphorhynchus sp. (subadult stage) which occurred mainly encysted in the mesenteries and liver. Every third gobiid (P = 31.7%) was infected by A. crassus larvae (L3) which exclusively occurred inside the acanthocephalan cysts. No intact or degenerated larvae of A. crassus were detected elsewhere in the goby, neither in the body cavity and mesenteries nor in other organs. Affected cysts contained the acanthocephalan larvae and 1-12 (mI =3) living A. crassus larvae. Additionally, encysted larvae of the nematode Raphidascaris acus were detected in the gobies, but only in the body cavity and not inside the acanthocephalan cysts.ConclusionsBased on our observations, we suggest that A. crassus might actively bypass the immune response of N. melanostomus by invading the cysts of acanthocephalan parasites of the genus ... Article in Journal/Newspaper Anguilla anguilla European eel Edinburgh Napier Repository (Napier University Edinburgh) Parasites & Vectors 7 1 |
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Edinburgh Napier Repository (Napier University Edinburgh) |
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ftnapieruniv |
language |
English |
topic |
Parasitology Infectious Diseases 577.6 Freshwater ecology QH301 Biology |
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Parasitology Infectious Diseases 577.6 Freshwater ecology QH301 Biology Emde, Sebastian Rueckert, Sonja Kochmann, Judith Knopf, Klaus Sures, Bernd Klimpel, Sven Nematode eel parasite found inside acanthocephalan cysts - a "Trojan horse" strategy? |
topic_facet |
Parasitology Infectious Diseases 577.6 Freshwater ecology QH301 Biology |
description |
BackgroundThe invasive eel parasite Anguillicoloides crassus (syn. Anguillicola crassus) is considered one of the major causes for the decline of the European eel (Anguilla anguilla) panmictic population. It impairs the swim bladder function and reduces swimming performance of its host. The life cycle of this parasite involves different intermediate and paratenic hosts. Despite an efficient immune system of the paratenic fish hosts acting against infections with A. crassus, levels of parasitized eels remain high in European river systems. Recently, the round goby Neogobius melanostomus (Gobiidae) has become dominant in many rivers in Europe and is still spreading at a rapid pace. This highly invasive species might potentially act as an important, so far neglected paratenic fish host for A. crassus.MethodsBased on own observations and earlier single sightings of A. crassus in N. melanostomus, 60 fresh individuals of N. melanostomus were caught in the Rhine River and examined to assess the infection levels with metazoan parasites, especially A. crassus. Glycerin preparations were used for parasite identification.ResultsThe parasite most frequently found in N. melanostomus was the acanthocephalan Pomphorhynchus sp. (subadult stage) which occurred mainly encysted in the mesenteries and liver. Every third gobiid (P = 31.7%) was infected by A. crassus larvae (L3) which exclusively occurred inside the acanthocephalan cysts. No intact or degenerated larvae of A. crassus were detected elsewhere in the goby, neither in the body cavity and mesenteries nor in other organs. Affected cysts contained the acanthocephalan larvae and 1-12 (mI =3) living A. crassus larvae. Additionally, encysted larvae of the nematode Raphidascaris acus were detected in the gobies, but only in the body cavity and not inside the acanthocephalan cysts.ConclusionsBased on our observations, we suggest that A. crassus might actively bypass the immune response of N. melanostomus by invading the cysts of acanthocephalan parasites of the genus ... |
format |
Article in Journal/Newspaper |
author |
Emde, Sebastian Rueckert, Sonja Kochmann, Judith Knopf, Klaus Sures, Bernd Klimpel, Sven |
author_facet |
Emde, Sebastian Rueckert, Sonja Kochmann, Judith Knopf, Klaus Sures, Bernd Klimpel, Sven |
author_sort |
Emde, Sebastian |
title |
Nematode eel parasite found inside acanthocephalan cysts - a "Trojan horse" strategy? |
title_short |
Nematode eel parasite found inside acanthocephalan cysts - a "Trojan horse" strategy? |
title_full |
Nematode eel parasite found inside acanthocephalan cysts - a "Trojan horse" strategy? |
title_fullStr |
Nematode eel parasite found inside acanthocephalan cysts - a "Trojan horse" strategy? |
title_full_unstemmed |
Nematode eel parasite found inside acanthocephalan cysts - a "Trojan horse" strategy? |
title_sort |
nematode eel parasite found inside acanthocephalan cysts - a "trojan horse" strategy? |
publisher |
BMC |
publishDate |
2014 |
url |
https://doi.org/10.1186/s13071-014-0504-8 https://napier-repository.worktribe.com/file/178493/1/Nematode%20Eel%20Parasite%20Found%20Inside%20Acanthocephalan%20Cysts http://researchrepository.napier.ac.uk/id/eprint/7313 |
genre |
Anguilla anguilla European eel |
genre_facet |
Anguilla anguilla European eel |
op_relation |
http://researchrepository.napier.ac.uk/id/eprint/7313 doi:https://doi.org/10.1186/s13071-014-0504-8 https://napier-repository.worktribe.com/file/178493/1/Nematode%20Eel%20Parasite%20Found%20Inside%20Acanthocephalan%20Cysts 1756-3305 10.1186/s13071-014-0504-8 |
op_rights |
openAccess http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1186/s13071-014-0504-8 |
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Parasites & Vectors |
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