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Can differences in life cycle explain differences in invasiveness? – A study on Anguillicola novaezelandiae in the European eel

Published online by Cambridge University Press:  19 August 2013

K. C. DANGEL ,
M. KEPPEL  and
B. SURES
K. C. DANGEL
Affiliation:
Department of Aquatic Ecology and Centre for Water and Environmental Research, University of Duisburg-Essen, Universitaetsstrasse 5, 45141 Essen, Germany
M. KEPPEL
Affiliation:
Department of Aquatic Ecology and Centre for Water and Environmental Research, University of Duisburg-Essen, Universitaetsstrasse 5, 45141 Essen, Germany
B. SURES*
Affiliation:
Department of Aquatic Ecology and Centre for Water and Environmental Research, University of Duisburg-Essen, Universitaetsstrasse 5, 45141 Essen, Germany
*
*Corresponding author: Department of Aquatic Ecology and Centre for Water and Environmental Research, University of Duisburg-Essen, Universitaetsstrasse 5, 45141 Essen, Germany. E-mail: bernd.sures@uni-due.de
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Summary

Anguillicola crassus is the most invasive species of its genus and it is a successful colonizer of different eel species worldwide. It is so far the only species of the genus Anguillicola whose life cycle has been studied completely. To analyse whether differences in life cycle may explain differences in invasiveness, we infected European eels with Anguillicola novaezelandiae under laboratory conditions. Anguillicola novaezelandiae shows a synchronized development in the European eel. Eggs with second-stage larvae appeared 120 days after infection. No density-dependent effect in parasite development could be found for A. novaezelandiae. The present study shows that the life cycle of A. novaezelandiae differs on final host level compared with A. crassus in ways which result in a less successful invasion of new host species.

Keywords

Life cycleAnguilla anguillaeelinvasive speciesAnguillicola crassusAnguillicola novaezelandiae
Type
Research Article
Information
Parasitology , Volume 140 , Issue 14 , December 2013 , pp. 1831 - 1836
Copyright
Copyright © Cambridge University Press 2013 

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