Skip to main content
×
Home
    • Aa
    • Aa

A review on swimmer's itch and the occurrence of bird schistosomes in Iceland

  • K. Skírnisson (a1), J.A. Aldhoun (a2) and L. Kolářová (a3)
Abstract
Abstract

In the past decade, swimmer's itch (SI) has repeatedly occurred in people who have been wading or bathing in ponds or lakes in Iceland where water birds and snails are abundant. Some of the affected sites were warmed by geothermal activity, and others were not. A search for the causative agent of SI, ocellate furcocercariae that have been found in Iceland only in Radix peregra snails, revealed an average infection prevalence of 1.4% (n = 12,432). Locally, infection rates commonly exceeded 6%, the highest value observed being 24.5%. A search for adult schistosomes in visceral organs and the nasal cavities of 110 water birds belonging to the orders Gaviiformes, Podicipediformes and Anseriformes revealed eggs, miracidia or adult stages of at least seven previously identifiable schistosome species in four anseriform bird species. A previously unknown species of schistosome, Allobilharzia visceralis, was detected in whooper swans (Cygnus cygnus), and classified in a new genus. In mallards (Anas platyrhynchos) a nasal Trichobilharzia sp. and the visceral schistosome T. franki were identified. In red-breasted merganser (Mergus serrator), distinct egg types belonging to two species of the genus Trichobilharzia have been found. In grey-lag goose (Anser anser) two different egg types were also found – a large Trichobilharzia sp. and small eggs of a Dendritobilharzia sp. Additionally, unidentified cercariae, probably belonging to a previously undescribed genus were detected in R. peregra in Oslandsstjörn. Taken together, the data obtained by morphological examination of eggs and recent DNA sequencing results, indicate that at least eight species of bird schistosomes occur in Iceland.

Copyright
Corresponding author
*Fax: +354 5673979 E-mail: karlsk@hi.is
Linked references
Hide All

This list contains references from the content that can be linked to their source. For a full set of references and notes please see the PDF or HTML where available.

J.A. Aldhoun , L. Kolářová , K. Skírnisson & P. Horak (2009) Bird schistosome diversity in Iceland: molecular evidence. Journal of Helminthology.

M.D. Bargues , M. Vigo , P. Horák , J. Dvořák , R.A. Patzner , J.P. Pointier , M. Jackiewicz , C. Meier-Brook & S. Mas-Coma (2001) European Lymnaeidae (Mollusca: Gastropoda), intermediate hosts of trematodiases, based on nuclear ribosomal DNA ITS-2 sequences. Infection, Genetics and Evolution 1, 85107.

S.V. Brant (2007) The occurrence of the avian schistosome Allobilharzia visceralis Kolářová, Rudolfová, Hampl et Skírnisson, 2006 (Schistosomatidae) in the tundra swan Cygnus columbianus (Anatidae), from North America. Folia Parasitologica 54, 99104.

K.V. Galaktionov & K. Skírnisson (2000) Digeneans from intertidal molluscs of SW Iceland. Systematic Parasitology 47, 87101.

P. Horák & L. Kolářová (2005) Molluscan and vertebrate immune responses to bird schistosomes. Parasite Immunology 27, 247255.

P. Horák , L. Kolářová & C.M. Adema (2002) Biology of the schistosome genus Trichobilharzia. Advances of Parasitology 52, 155233.

D. Jouet , H. Ferté , C. Hologne & J. Depaquit (2009) Avian schistosomes in French aquatic birds: molecular approach. Journal of Helminthology.

L. Kolářová (2007) Schistosomes causing cercarial dermatitis: a mini review of current trends in systematics and of host specificity and pathogenicity. Folia Parasitologica 54, 8187.

L. Kolářová , J. Rudolfová , V. Hampl & K. Skírnisson (2006) Allobilharzia visceralis gen. nov., sp. nov. (Schistosomatidae – Trematoda) from Cygnus cygnus (L.) (Anatidae). Parasitology International 55, 179186.

P. Kouřilová , M. Syrucek & L. Kolářová (2004) The severity of mouse pathologies caused by the bird schistosome Trichobilharzia regenti in relation to host immune status. Parasitology Research 93, 816.

M. Pfenninger , M. Cordellier & B. Streit (2006) Comparing the efficacy of morphologic and DNA-based taxonomy in the freshwater gastropod genus Radix (Basommatophora, Pulmonata). BMC Evolutionary Biology 6, 100. Available athttp://www.biomedcentral.com/1471-2148/6/100(accessed January 2008).

K. Skírnisson & K.V. Galaktionov (2002) Life cycles and transmission patterns of seabird digeneans in SW Iceland. Sarsia 87, 144151.

K. Skírnisson & L. Kolářová (2008) Diversity of bird schistosomes in anseriform birds in Iceland based on egg measurements and egg morphology. Parasitology Research 103, 4350.

K. Skírnisson , K.V. Galaktionov & E.V. Kozminsky (2004) Factors influencing the distribution of digenetic trematode infections in a mudsnail (Hydrobia ventrosa) population inhibiting salt marsh ponds in Iceland. Journal of Parasitology 90, 5059.

Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Journal of Helminthology
  • ISSN: 0022-149X
  • EISSN: 1475-2697
  • URL: /core/journals/journal-of-helminthology
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×