First records of Aoroides longimerus Ren and Zheng, 1996, and A. semicurvatus Ariyama, 2004 (Crustacea, Amphipoda), in the English Channel, France

• Published in: BioInvasions Records
• Main Authors: Dauvin, Jean-Claude, Pezy, Jean-Philippe, Raoux, Aurore
• Other Authors: Morphodynamique Continentale et Côtière (M2C), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2020
• Subjects: introduced species; Le Havre harbour; non-native species; fouling; Bay of Seine; envir; scipo; Havre; Le Havre; Pacific; Crassostrea gigas; ren
• Online Access: https://doi.org/10.3391/bir.2020.9.4.10; https://hal-normandie-univ.archives-ouvertes.fr/hal-03018822/file/BIR_2020_Dauvin_etal.pdf; https://hal-normandie-univ.archives-ouvertes.fr/hal-03018822

International audience Two Pacific amphipod species, Aoroides longimerus (94 individuals) and A. semicurvatus (three individuals), were recorded for the first time in 2019 in the English Channel. Aoroides longimerus was found in four sites along the Normandy coast (Granville, Cherbourg, Saint-Vaast-La-Hougue, and Le Havre) while A. semicurvatus was found only in two sites (Granville and Saint-Vaast-La-Hougue). Because both species were recorded (2009-2014) from the French Atlantic coast, they have probably been introduced to the English Channel through the accumulated fouling of the hulls of ships used primarily for recreational purposes or by transfer of the Japanese oyster Crassostrea gigas between oyster farms along the French oyster production intertidal zones.