Issue |
Parasite
Volume 18, Number 1, February 2011
|
|
---|---|---|
Page(s) | 71 - 78 | |
DOI | https://doi.org/10.1051/parasite/2011181071 | |
Published online | 15 February 2011 |
Original contribution
Gill ectoparasites of Barbus martorelli (Teleostean: Cyprinidae) from a tropical watercourse (Cameroon, Africa): conflict or coexistence?
Les ectoparasites branchiaux de Barbus martorelli (Telestoan : Cyprinidae) d’un cours d’eau tropical (Cameroun, Afrique) : conflit ou coexistence ?
1
Laboratory of Parasitology and Ecology, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
2
Institut des Sciences de l’Évolution, CNRS – UM2, CC65, Université de Monpellier 2, 34095 Montpellier, France
* Correspondence: Serge Morand. Tel.: 33 (0)4 67 14 40 67 – Fax: 33 (0)4 67 14 36 10. E-mail: serge.morand@univ-montp2.fr
Received:
31
January
2010
Accepted:
22
September
2010
The structure and stability of parasite communities have been mainly explained by high diversity and strong interactions among parasite species. During 16 months, 558 Barbus martorelli gill infracommunities were studied in a tropical zone to determine whether parasite infrapopulations interact. Three levels were retained: the infracommunity level, the gill filament level, and the filament fraction level. Single species infections in Barbus martorelli were very rare and only concerned the core species: Dactylogyrus bopeleti, D. insolitus, D. simplex and Myxobolus barbi. Mixed infections appeared as a general rule in this fish species. Interspecific interactions at all three levels were statistically non significant. Our results suggest that Barbus martorelli gill parasites are non interactive (isolationist).
Résumé
La structure et la stabilité des communautés de parasites sont expliquées principalement par la diversité spécifique ou par les interactions entre espèces parasites. Durant 16 mois, les infracommunautés parasitaires branchiales de 559 Barbus martorelli ont été étudiées dans une zone intertropicale afin de déterminer si les populations de ces parasites sont en interaction. Trois niveaux d’analyse ont été retenus : l’infra-communauté, le filament et la fraction du filament branchial. Les infections par une seule espèce de parasite sont rares et concernent les espèces dominantes : Dactylogyrus bopeleti, D. insolitus, D. simplex et Myxobolus barbi. Les infections multiples sont la règle chez ce poisson. Les interactions interspécifiques ne sont pas statistiquement soutenues, ce qui suggère que les populations de parasites branchiaux de Barbus martorelli forment des communautés non interactives ou isolationnistes.
Key words: Barbus martorelli / gill parasites / coexistence / infracommunity / filament / filament fraction / isolationist
Mots clés : Barbus martorelli / parasites branchiaux / infracommunauté / filament / fraction de filament / isolationniste
© PRINCEPS Editions, Paris, 2011, transferred to Société Française de Parasitologie
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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