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An environmental assessment of the parasite fauna of the reefassociated grouper Epinephelus areolatus from Indonesian waters
Autor: Kleinertz, S.; Damriyasa, I.M.; Hagen, W.; Theisen, S.; Palm, H.W.
In:
Journal of Helminthology
Auflage: 88
Ergaenzung: http://journals.cambridge.org/abstract_S0022149X12000715
ISBN: 1475-2697
DOI: 10.1017/S0022149X12000715
Seite: 50 - 63
Jahr: 2014
Einordung:
Institut: Professur Aquakultur und Sea-Ranching
Abstract:
Sixty Epinephelus areolatus were examined for metazoan fish parasites in
Indonesia, off Segara Anakan lagoon, Java and in Balinese waters. The study
revealed 21 different parasite species, and 14 new host and locality records. The
anisakid nematodes Anisakis typica and, for the first time in Indonesia, Anisakis
sp. HC-2005 were identified by using molecular methods. Ecological parameters
were calculated for both sites off the anthropogenically influenced Segara
Anakan lagoon and the relatively undisturbed reference site at the southern
Balinese coast. The fish from Segara Anakan demonstrated a significantly higher
enzymatic activity (Hepatosomatic index) and a significantly reduced number of
heteroxenous gut helminths (e.g. the digenean Didymodiclinus sp., the nematode
Raphidascaris sp. and the acanthocephalan Serrasentis sagittifer). Other regional
differences for E. areolatus included ecto-/endoparasite ratio, endoparasite
diversity, the parasite species composition and prevalence of infection of the
respective parasite species. We applied the stargraph method to visualize
observed regional differences using grouper parasites as biological indicators for
the sampled coastal ecosystems at both sampling sites. Ansprechpartner Weitere Information im WWW
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Letzte Änderung des Eintrages:
01.02.2017
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