First and disturbing records of the bivalve molluscs Potamocorbula amurensis (Schrenck, 1861) and Mulinia lateralis (Say, 1822) in the Bay of Biscay (France)

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Identifiant documentaire 25-5460268
Identifiant OAI 5460268
Auteur(s): Latry Lise,Jourde J.,Bachelet Guy,Blanchet Hugues,Bocher Pierrick,Bujan Vaea,Chenu Audran,Donnez Marie,Fouet Marie,Gouillieux Benoît,Lavesque Nicolas,Zaragosi Lucille,Massé Cécile
Mots clés Espèces invasives Espèces non indigènes Estuaire de la Gironde Pertuis Charentais Dynamique rapide
Date de publication 01/01/2026
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Description
The bivalve mollusc Potamocorbula amurensis, a Corbulidae from the Asian coasts, was recorded for the first time in France in September 2023 in the Gironde estuary, and subsequently in September 2024 in Aiguillon Cove and Aytré Bay. In Aytré Bay, it was accompanied by another non-native bivalve not previously reported from French coasts, Mulinia lateralis, a Mactridae from the western Atlantic coasts. These two species were first recorded in Europe in 2018 in the Westerschelde (Netherlands, Belgium) and are known to be potentially highly invasive. Particular attention should be paid to monitor the spread and the establishment of these two euryoecious species along European coasts.
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