SUR QUELQUES CURIOSITÉS D'HISTOIRE NATURELLE DANS LES PERTUIS CHARENTAIS : FAUNE DES INVERTÉBRÉS MARINS

Eight invertebrate species, rediscovered, demographically expanding or newly observed are reported from the Pertuis Charentais Sea. They were sampled from intertidal rocky shores (Alpheus macrocheles, Aslia lefevrei, Epitonium clathrulatum and Haliotis tuberculata), intertidal sand flats (Africorchestia spinifera and Arcuatula senhousia) and subtidal bottoms (Aslia lefevrei and Rapana venosa). One species is pelagic (Lepas anatifera). Most of them are within their natural range. However, R. venosa, native to Southeast Asia, has been introduced in the Pertuis Charentais since the 2010s and its populations are currently expanding. The new northern limit of Africorchestia spinifera along the Atlantic coast is defined as the Ré Island. Phoresis of Crepidula fornicata on Carcinus maenas is noted but was already described in European waters whereas it is a hitherto undescribed and unexpected association with the gastropod R. venosa.< Réduire

Mots clés

Invertébrés marins

Nouveaux signalements

Espèce introduite

Limite de répartition

Mots clés en anglais

Pertuis Charentais Marine invertebrates

new records

allochthonous species

geographic distribution

Pertuis Charentais Sea

URI

https://oskar-bordeaux.fr/handle/20.500.12278/188682

Unités de recherche

EPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805

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