Eye fluke infection changes diet composition in juvenile European perch (Perca fluviatilis)

Abstract Intraspecific diet specialization, usually driven by resource availability, competition and predation, is common in natural populations. However, the role of parasites on diet specialization of their hosts has rarely been studied. Eye flukes can impair vision ability of their hosts and have...

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Autores principales:	Jenny C. Vivas Muñoz, Christian K. Feld, Sabine Hilt, Alessandro Manfrin, Milen Nachev, Daniel Köster, Maik A. Jochmann, Torsten C. Schmidt, Bernd Sures, Andrea Ziková, Klaus Knopf
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a015510155614b0e94810ab483aa1728
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spelling	oai:doaj.org-article:a015510155614b0e94810ab483aa17282021-12-02T12:09:32ZEye fluke infection changes diet composition in juvenile European perch (Perca fluviatilis)10.1038/s41598-021-81568-y2045-2322https://doaj.org/article/a015510155614b0e94810ab483aa17282021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-81568-yhttps://doaj.org/toc/2045-2322Abstract Intraspecific diet specialization, usually driven by resource availability, competition and predation, is common in natural populations. However, the role of parasites on diet specialization of their hosts has rarely been studied. Eye flukes can impair vision ability of their hosts and have been associated with alterations of fish feeding behavior. Here it was assessed whether European perch (Perca fluviatilis) alter their diet composition as a consequence of infection with eye flukes. Young-of-the-year (YOY) perch from temperate Lake Müggelsee (Berlin, Germany) were sampled in two years, eye flukes counted and fish diet was evaluated using both stomach content and stable isotope analyses. Perch diet was dominated by zooplankton and benthic macroinvertebrates. Both methods indicated that with increasing eye fluke infection intensity fish had a more selective diet, feeding mainly on the benthic macroinvertebrate Dikerogammarus villosus, while less intensively infected fish appeared to be generalist feeders showing no preference for any particular prey type. Our results show that infection with eye flukes can indirectly affect interaction of the host with lower trophic levels by altering the diet composition and highlight the underestimated role of parasites in food web studies.Jenny C. Vivas MuñozChristian K. FeldSabine HiltAlessandro ManfrinMilen NachevDaniel KösterMaik A. JochmannTorsten C. SchmidtBernd SuresAndrea ZikováKlaus KnopfNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jenny C. Vivas Muñoz Christian K. Feld Sabine Hilt Alessandro Manfrin Milen Nachev Daniel Köster Maik A. Jochmann Torsten C. Schmidt Bernd Sures Andrea Ziková Klaus Knopf Eye fluke infection changes diet composition in juvenile European perch (Perca fluviatilis)
description	Abstract Intraspecific diet specialization, usually driven by resource availability, competition and predation, is common in natural populations. However, the role of parasites on diet specialization of their hosts has rarely been studied. Eye flukes can impair vision ability of their hosts and have been associated with alterations of fish feeding behavior. Here it was assessed whether European perch (Perca fluviatilis) alter their diet composition as a consequence of infection with eye flukes. Young-of-the-year (YOY) perch from temperate Lake Müggelsee (Berlin, Germany) were sampled in two years, eye flukes counted and fish diet was evaluated using both stomach content and stable isotope analyses. Perch diet was dominated by zooplankton and benthic macroinvertebrates. Both methods indicated that with increasing eye fluke infection intensity fish had a more selective diet, feeding mainly on the benthic macroinvertebrate Dikerogammarus villosus, while less intensively infected fish appeared to be generalist feeders showing no preference for any particular prey type. Our results show that infection with eye flukes can indirectly affect interaction of the host with lower trophic levels by altering the diet composition and highlight the underestimated role of parasites in food web studies.
format	article
author	Jenny C. Vivas Muñoz Christian K. Feld Sabine Hilt Alessandro Manfrin Milen Nachev Daniel Köster Maik A. Jochmann Torsten C. Schmidt Bernd Sures Andrea Ziková Klaus Knopf
author_facet	Jenny C. Vivas Muñoz Christian K. Feld Sabine Hilt Alessandro Manfrin Milen Nachev Daniel Köster Maik A. Jochmann Torsten C. Schmidt Bernd Sures Andrea Ziková Klaus Knopf
author_sort	Jenny C. Vivas Muñoz
title	Eye fluke infection changes diet composition in juvenile European perch (Perca fluviatilis)
title_short	Eye fluke infection changes diet composition in juvenile European perch (Perca fluviatilis)
title_full	Eye fluke infection changes diet composition in juvenile European perch (Perca fluviatilis)
title_fullStr	Eye fluke infection changes diet composition in juvenile European perch (Perca fluviatilis)
title_full_unstemmed	Eye fluke infection changes diet composition in juvenile European perch (Perca fluviatilis)
title_sort	eye fluke infection changes diet composition in juvenile european perch (perca fluviatilis)
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/a015510155614b0e94810ab483aa1728
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Eye fluke infection changes diet composition in juvenile European perch (Perca fluviatilis)

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