Salinity dependence of parasite infestation in the European eel Anguilla anguilla in northern Germany.

Jakob, Eva, Hanel, Reinhold, Klimpel, Sven and Zumholz, Karsten (2009) Salinity dependence of parasite infestation in the European eel Anguilla anguilla in northern Germany. Open Access ICES Journal of Marine Science, 66 . pp. 358-366. DOI 10.1093/icesjms/fsn160.

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Abstract

The aim of the study was to examine metazoan parasite communities of European eels (Anguilla anguilla) in fresh-water, brackish water and marine localities in northern Germany. In all, 29 parasite species/taxa were found in 170 eels: eight digeneans, one monogenean, five cestodes, ten nematodes, two acanthocephalans, and three crustaceans. Measures of diversity characteristics of the helminth communities included species richness, Shannon's diversity index and its evenness, and the Berger–Parker dominance index. The highest species diversity and lowest dominance values were calculated for the helminth communities of eels from the two Baltic Sea localities. Parasite communities of European eels clearly exhibit the habitat preferences of their hosts, salinity-dependent specificities, and a clustering into fresh-water, brackish, and marine groups. The highly pathogenic parasite species Anguillicola crassus and Pseudodactylogyrus spp. were found at all sampling sites in fresh water and brackish water, with high prevalence. Basic information is provided on the risks of restocking programmes solely focusing on fresh-water sites.

Document Type: Article
Keywords: Anguilla anguilla, Anguillicola crassus, diversity, Germany, parasite communities, Pseudodactylogyrus spp., salinity, silver index
Research affiliation: OceanRep > GEOMAR > FB3 Marine Ecology > FB3-EV Marine Evolutionary Ecology
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1093/icesjms/fsn160
ISSN: 1054-3139
Projects: Habitat Selection of the European Eel
Date Deposited: 09 Dec 2009 14:23
Last Modified: 02 Oct 2018 09:12
URI: http://oceanrep.geomar.de/id/eprint/487

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