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Microhabitat characteristics and reproductive status of male Euchordodes nigromaculatus (Nematomorpha)

Published online by Cambridge University Press:  11 April 2024

F. Thomas ,
A. Schmidt-Rhaesa  and
R. Poulin
F. Thomas
Affiliation:
Department of Zoology, University of Otago, PO Box 56, Dunedin, New Zealand
A. Schmidt-Rhaesa
Affiliation:
Department of Biology, University of South Florida, 4202 East Fowler Avenue, LIF 136, Tampa, FL 33620-5150, USA
R. Poulin*
Affiliation:
Department of Zoology, University of Otago, PO Box 56, Dunedin, New Zealand
*
*Author for correspondence. Fax: 64 3 479 7584 E-mail: [email protected]
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Abstract

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In a sample of 61 free-living, postparasitic male Euchordodes nigromaculatus collected from a mountain stream in New Zealand, we found that only large males are found in areas of high current velocity. Thirty-five of the 61 males still contained gametes; these worms were found in wider, deeper, and slower-flowing parts of the stream relative to worms that had released their gametes. These results suggest that the physical characteristics of the immediate microhabitat of male worms can determine their probability of mating.

Type
Research Article
Information
Journal of Helminthology , Volume 73 , Issue 1 , January 1999 , pp. 91 - 93
Copyright
Copyright © Cambridge University Press 1999

References

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