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Trichodinid infections in internal organs of shorthorn sculpin (Myoxocephalus scorpius) collected around an industrial harbour in Nuuk, Greenland

Published online by Cambridge University Press:  25 October 2018

Mai Dang ,
Linda Basson ,
Lis Bach ,
Christian Sonne ,
Rasmus Nørregaard  and
Barbara Nowak Open the ORCID record for Barbara Nowak [Opens in a new window]
Mai Dang
Affiliation:
Institute for Marine and Antarctic Studies, University of Tasmania, Launceston, Tasmania, 7250, Australia Department of Bacteriology, Institute of Veterinary Research and Development of Central Vietnam, km 4, 2/4 Street, Vinh Hoa, Nha Trang, Khanh Hoa, Vietnam
Linda Basson
Affiliation:
Department of Zoology & Entomology, University of the Free State, P.O. Box 339, Bloemfontein, 9300 Republic of South Africa, South Africa
Lis Bach
Affiliation:
Department of Bioscience, Aarhus University, Faculty of Science and Technology, Arctic Research Centre, Frederiksborgvej 399, PO Box 358, DK-4000 Roskilde, Denmark
Christian Sonne
Affiliation:
Department of Bioscience, Aarhus University, Faculty of Science and Technology, Arctic Research Centre, Frederiksborgvej 399, PO Box 358, DK-4000 Roskilde, Denmark
Rasmus Nørregaard
Affiliation:
Department of Bioscience, Aarhus University, Faculty of Science and Technology, Arctic Research Centre, Frederiksborgvej 399, PO Box 358, DK-4000 Roskilde, Denmark
Barbara Nowak*
Affiliation:
Institute for Marine and Antarctic Studies, University of Tasmania, Launceston, Tasmania, 7250, Australia Department of Bioscience, Aarhus University, Faculty of Science and Technology, Arctic Research Centre, Frederiksborgvej 399, PO Box 358, DK-4000 Roskilde, Denmark
*
Author for correspondence: Barbara Nowak, E-mail: b.nowak@utas.edu.au
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Abstract

Trichodinids are parasites generally found on gills and skin of a broad number of aquatic animals. Only a small number of endozoic species has been reported from the urinary tract, intestine and urogenital system in some fish, amphibians and molluscs. This is the first report on the presence of endozoic trichodinids in the spleen, kidney and liver of shorthorn sculpin (Myoxocephalus scorpius). In the present study, trichodinids displayed some of the typical morphological characteristics of endozoic trichodinids with narrow blades and straight rays of adhesive disc denticles. The parasites were observed at a relatively high prevalence (23.9%). There was a positive correlation between intensity of endozoic trichodinids in the internal organs and ectozoic trichodinids on the gills (R = 0.5, n = 46, P < 0.001) whereas there was no correlation between intensity of endozoic trichodinids and the host's body length, body weight or liver weight. Infection levels of endozoic trichodinids were not dependent upon sculpin sex and there was no effect of sampling locations on prevalence and intensity of endozoic trichodinids.

Keywords

Endozoic trichodinidNuukparasiteshorthorn sculpin
Type
Research Article
Information
Parasitology , Volume 146 , Issue 4 , April 2019 , pp. 506 - 510
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Copyright
Copyright © Cambridge University Press 2018 

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