Issue |
Parasite
Volume 2, Number 2S, June 1995
Helminthes de Poissons / Fish Helminths
|
|
---|---|---|
Page(s) | 195 - 202 | |
DOI | https://doi.org/10.1051/parasite/199502s2195 | |
Published online | 26 September 2014 |
Mémoire
The life-cycle and biology of Hemiurus communis Odhner, 1905 (Digenea, Hemiuridae)
Cycle et biologie d'Hemiuris communis Odhner, 1905 (Digenea, Hemiuridae)
Marine Biological Laboratory, University of Copenhagen, DK-3000 Helsingør, Denmark. Tel. + 45 49 21 33 - Fax + 45 49 26 11 65.
Accepted: 19 January 1995
Previously undescribed cystophorous cercariae which develop in sporocyst germinal sacs in the opisthobranch snail Retusa truncatula (Bruguiére) are shown to be the cercariae of Hemiurus communis Odhner, 1905 (Hemiuridae), a common stomach parasite of non-clupeid fishes off the north-western coasts of Europe. The free-swimming cercaría is ingested by calanoid copepods. The cerca-rial body is injected into the copepod haemocoel via the delivery tube. The cystophorous cercaria and life-cycle of H. communis are compared with those of other hemiurids from the North-East Atlantic and the known biology of this species is reviewed.
Résumé
Il est démontré que des cercaires cystophores non encore décrites qui se développent dans les sacs germinaux du Mollusque opistobranche Retusa truncaluta (Bruguière) sont celles de Hemiurus communis Odhner, 1905 (Hemiuridae), parasite stomacal de Poissons des côtes nord-occidentales d'Europe. La cercaire nageante est ingérée par des Copépodes calanoïdes. Le corps cercarien est injecté dans l'hémocoele du Copépode par le tube inoculateur. La cercaire cystophore et le cycle biologique de H. communis sont comparés avec ceux des autres Hémiurides de l'Atlantique nord-oriental et la biologie des espèces connues est passée en revue.
Key words: Digenea / Trematoda / Hemiuridae / cercaria / life-cycle / Hemiurus / Retusa / copepod / fish
Mots clés : Digenea / Trémalode / Hemiuride / cercaire / cycle de vie / Hemiurus / Retusa / poisson / copépode
© PRINCEPS Editions, Paris, 1995, transferred to Société Française de Parasitologie
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