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ICES Journal of Marine Science: Journal du Conseil Advance Access originally published online on June 8, 2009
ICES Journal of Marine Science: Journal du Conseil 2009 66(9):1837-1845; doi:10.1093/icesjms/fsp152
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© 2009 International Council for the Exploration of the Sea. Published by Oxford Journals. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

Prevalence and seasonality of Hematodinium (Alveolata: Syndinea) in a Scottish crustacean community

K. M. Hamilton1,2, P. W. Shaw1 and D. Morritt1

1 School of Biological Sciences, Royal Holloway, University of London, Egham TW20 0EX, UK
2 Environmental and Molecular Biosciences, University of Swansea, Singleton Park, Swansea SA2 8PP, UK

Correspondence to K. M. Hamilton: tel: +44 1792 295 362; fax: +44 1792 295 157; e-mail: hamilton_biol{at}yahoo.co.uk

Hamilton, K. M., Shaw, P. W., and Morritt, D. 2009. Prevalence and seasonality of Hematodinium (Alveolata: Syndinea) in a Scottish crustacean community. – ICES Journal of Marine Science, 66: 1837–1845.

Protist parasites of the genus Hematodinium were detected in seven crustacean species (Cancer pagurus, Carcinus maenas, Liocarcinus depurator, Munida rugosa, Necora puber, Pagurus bernhardus, and Pagurus prideaux) from the Clyde Sea in Scotland. Seasonal screening of different tissues with sensitive molecular probes showed average infection of 3–23%, with prevalence reaching almost 60% in hermit crabs (P. bernhardus) and brachyuran hosts in spring and >30% in C. pagurus and N. puber in autumn. During summer, Hematodinium infections were rare. Hematodinium seemed to be present in all host sizes sampled. The infection was equally distributed between males and females in most host species, except C. maenas, where males seemed to be more susceptible to infection. PCR amplification of the Hematodinium ribosomal RNA gene in crustacean tissue detected the parasite most frequently in muscle, gills, and heart throughout the 2-year sampling period.

Keywords: Clyde Sea, crustaceans, prevalence, Hematodinium, rDNA, seasonality, tissue specificity

Received 20 November 2008; accepted 16 February 2009; advance access publication 8 June 2009.


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