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Acta Parasitologica

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Volume 59, Issue 1


Anisakids of seals found on the southern coast of Baltic Sea

Michał Skrzypczak
  • Department of Invertebrate Zoology and Parasitology, Laboratory of Parasitology and General Zoology, University of Gdansk, Faculty of Biology, Wita Stwosza 59, 80-308, Gdańsk, Poland
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/ Jerzy Rokicki
  • Department of Invertebrate Zoology and Parasitology, Laboratory of Parasitology and General Zoology, University of Gdansk, Faculty of Biology, Wita Stwosza 59, 80-308, Gdańsk, Poland
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/ Iwona Pawliczka / Katarzyna Najda
  • Department of Invertebrate Zoology and Parasitology, Laboratory of Parasitology and General Zoology, University of Gdansk, Faculty of Biology, Wita Stwosza 59, 80-308, Gdańsk, Poland
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/ Joanna Dzido
  • Department of Invertebrate Zoology and Parasitology, Laboratory of Parasitology and General Zoology, University of Gdansk, Faculty of Biology, Wita Stwosza 59, 80-308, Gdańsk, Poland
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Published Online: 2014-02-26 | DOI: https://doi.org/10.2478/s11686-014-0226-2


In the present study 5 grey seals (Halichoerus grypus), 3 common seals (Phoca vitulina) and 1 ringed seal (Pusa hispida) bycaught or stranded on the Polish Baltic Sea coast in years 2000-2006 were investigated for the infestation of parasitic anisakid nematodes. 749 of anisakids were found. The most common were: Contracaecum osculatum (59.3%) and Pseudoterranova decipiens (31.0%). There were also small numbers of Anisakis simplex (0.8%). After performing RFLP three sibling species were found. C. osculatum was identified as C. osculatum C, P decipiens was identified as P. decipiens sensu stricto and A. simplex — A. simplex sensu stricto. Nematodes found in seals were mostly in L4 and adult life stage — both of them were equal with some minor variations among the specimens. Sex ratio was also equal, but there was slight excess of males in some cases. There was a minority of L3 larvae belonging to A. simplex species (0.8%).

Keywords: Anisakid nematodes; seal; Baltic Sea

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About the article

Published Online: 2014-02-26

Published in Print: 2014-03-01

Citation Information: Acta Parasitologica, Volume 59, Issue 1, Pages 165–172, ISSN (Online) 1896-1851, DOI: https://doi.org/10.2478/s11686-014-0226-2.

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© 2014 W. Stefański Institute of Parasitology, PAS. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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