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  Seasonal variability in the gut ultrastructure of the parasitic copepod Neoergasilus japonicus (Copepoda, Poecilostomatoida)

Baud, A., Cuoc, C., Grey, J., Chappaz, R., & Alekseev, V. (2004). Seasonal variability in the gut ultrastructure of the parasitic copepod Neoergasilus japonicus (Copepoda, Poecilostomatoida). Canadian Journal of Zoology, 82(10), 1655-1666. doi:10.1139/Z04-149.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-DA7B-B Version Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-DA7C-9
Genre: Journal Article

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 Creators:
Baud, A., Author
Cuoc, C., Author
Grey, J.1, Author              
Chappaz, R., Author
Alekseev, V.1, Author              
Affiliations:
1Department Ecophysiology, Max Planck Institute for Limnology, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_976547              

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 Abstract: The gut structure and ultrastructure of Neoergasilus japonicus (Harada, 1930), a copepod from the family Ergasilidae (Copepoda, Poecilostomatoida) and a parasite of fish, were compared at different periods of the life cycle: in free-living specimens in October and after attaching to fish in January and June. Differences in the depth of the intestinal epithelium were prominent and other cellular characteristics appeared seasonally variable. We relate these to changes in the physiological activity. Preliminary data from stable-isotope analyses of attached specimens suggest nutritional contribution from parasitism. The possibility of a diapause in the life cycle, as well as the relationship between the morphology of the gut and early evolutionary parasitism of N. japonicus, are discussed.

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Language(s): eng - English
 Dates: 2004-10
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: eDoc: 229816
DOI: 10.1139/Z04-149
Other: 2361/S 38376
 Degree: -

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Title: Canadian Journal of Zoology
  Alternative Title : Can. J. Zool.
Source Genre: Journal
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Affiliations:
Publ. Info: -
Pages: - Volume / Issue: 82 (10) Sequence Number: - Start / End Page: 1655 - 1666 Identifier: ISSN: 0008-4301