| one publication added to basket [59161] | Redescription des adultes et comparaison des divers stades ontogéniques des populations méditerranéennes et atlantiques de Scolelepis fuliginosa claparède (annélide polychète) = Redescription of adults and comparison of different ontogenic stages between Mediterranean and Atlantic populations of Scolelepis fuliginosa Claparede (Annelida, Polychaeta)
Guérin, J.P. (1975). Redescription des adultes et comparaison des divers stades ontogéniques des populations méditerranéennes et atlantiques de Scolelepis fuliginosa claparède (annélide polychète) = Redescription of adults and comparison of different ontogenic stages between Mediterranean and Atlantic populations of Scolelepis fuliginosa Claparede (Annelida, Polychaeta). Cah. Biol. Mar. 16(1): 21-37
In: Cahiers de Biologie Marine. Station Biologique de Roscoff: Paris. ISSN 0007-9723; e-ISSN 2262-3094, more
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| Abstract |
The rearing in lab culture of some specimens from the French coast of the Atlantic Ocean and Mediterranean allows for details regarding the morphology of uncini in these distinct populations to be considered. Though adults from both populations would be morphologically identical, the study of the ontogenic cycle shows noticeable differences between them. These differences concern reproductive behaviour, morphology of sexual products and larval morphology. On the Mediterranean coast of France, where no important tidal range occurs, S. fuliginosa lives in polluted areas, under waters of which the O2 content is depleted. These conditions were regarded as responsible for the biological modifications described. Nevertheless, comparison between observations on animals of both populations, and literature data about the whole fam of Spionidae, suggest that the observed differences are very important; so it appears likely that both the populations belong to 2 distinct spp, but the morphological similarity between adults does not allow for any discrimination. So it seems unjustified to denominate differently these populations until further information is available. |
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