Preferential presence in harbours confirms the non-indigenous species status of Ammonia confertitesta (Foraminifera) in the English Channel
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Date | 2023-09-13 | ||||||||||||||||||||||||
Language | English | ||||||||||||||||||||||||
Author(s) | Pavard Jean-Charles1, Bouchet Vincent M. P.1, Richirt Julien2, Courleux Apolyne1, Armynot Du Châtelet Eric1, Duong Gwendoline1, Abraham Romain1, Pezy Jean-Philippe3, Dauvin Jean-Claude3, Seuront Laurent1, 4, 5 | ||||||||||||||||||||||||
Affiliation(s) | 1 : Université de Lille, CNRS, ULCO, IRD, UMR8187, LOG, Laboratoire d’Océanologie et de Géosciences, Station Marine de Wimereux, F-59000 Lille, France 2 : X-star, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15 Natsushima-cho, Yokosuka 237-0061, Japan 3 : Normandie Université, UNICAEN, UNIROUEN, Laboratoire Morphodynamique Continentale et Côtière, CNRS UMR 6143 M2C, 24 rue des Tilleuls, 14000 Caen, France 4 : Department of Marine Resources and Energy, Tokyo University of Marine Science and Technology, 4-5-Konan, Minato-ku, Tokyo, 108-8477, Japan 5 : Department of Zoology and Entomology, Rhodes University, Grahamstown, 6140, South Africa |
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Source | Aquatic Invasions (1798-6540) (Regional Euro-Asian Biological Invasions Centre Oy (REABIC)), 2023-09-13 , Vol. 18 , N. 3 , P. 351-369 | ||||||||||||||||||||||||
DOI | 10.3391/ai.2023.18.3.106635 | ||||||||||||||||||||||||
Keyword(s) | benthic foraminifera, Ammonia species, exotic species, Northeast Atlantic, International commercial harbours | ||||||||||||||||||||||||
Abstract | Though the morphological discrimination of the three pseudo-cryptic Ammonia species, A. aberdoveyensis, A. confertitesta and A. veneta, has been recently established, information on their ecology and habitats are still relatively scarce. This study aims to define distribution patterns of these species at eight sites scattered along the French coasts of the English Channel, over a total of 39 stations. These sites were classified into two habitats, either harbours (heavily modified sites) or less impacted (moderately influenced sites). The use of IndVal index (an index based on how a species is statistically specific to a habitat) clearly indicates that A. confertitesta is recorded preferentially in or close to harbours. Considering its non-indigenous species (NIS) status in Europe, we investigated its reported occurrences in Europe in the literature. It almost always showed a proximity to major European harbours. Sometimes, this species occurred relatively far away from these harbours, suggesting a secondary spread. Finally, this work interprets A. confertitesta being a NIS in the eastern English Channel with assumptions of being invasive regarding its dominance over the indigenous species A. aberdoveyensis and A. veneta. Complementary works such as retrospective core studies of fossil faunas are needed to quantitatively assess when and where A. confertitesta was introduced in Europe and potentially started to replace its congenerics A. veneta and A. aberdoveyensis. |
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