Titre :

The invasive Asian benthic foraminifera Trochammina hadai Uchio, 1962: identification of a new local in Normandy (France) and a discussion on its putative introduction pathways

Auteur(s) :

Bouchet, Vincent [Auteur]
Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 [LOG]
Université de Lille
Pavard, Jean-Charles [Auteur]
Holzmann, Maria [Auteur]
Mcgann, Mary [Auteur]
Armynot Du Châtelet, Eric [Auteur]
Courleux, Apolyne [Auteur]
Pezy, Jean-Philippe [Auteur]
Dauvin, Jean-Claude [Auteur]
Seuront, Laurent [Auteur]

Titre de la revue :

Aquatic Invasions

Pagination :

23 - 38

Éditeur :

Regional Euro-Asian Biological Invasions Centre

Date de publication :

2023-04-18

ISSN :

1798-6540

Mot(s)-clé(s) en anglais :

English Channel harbor non-indigenous species ballast waters benthic unicellular eukaryote competitor
English Channel
harbor
non-indigenous species
ballast waters
benthic unicellular eukaryote
competitor

Résumé en anglais : [en]

<div><p>The invasive benthic foraminifera Trochammina hadai has been found for the first time in Europe along the coast of Normandy. Its native range of distribution is in Asia (Japan and Korea), and it has also been ...
Lire la suite ><div><p>The invasive benthic foraminifera Trochammina hadai has been found for the first time in Europe along the coast of Normandy. Its native range of distribution is in Asia (Japan and Korea), and it has also been introduced along the coasts of western North America, Brazil and Australia. Morphological and molecular assessments confirm that specimens found in Le Havre and Caen-Ouistreham harbors belong to the Asiatic type. Like in Asia, T. hadai was found in transitional waters with muddy sediments. It exhibited high relative abundances (up to about 40%) confirming that T. hadai is a highly competitive species. In the present study, it was nearly absent from natural transitional waters and very abundant in heavily modified habitats like harbors, suggesting that ballast waters may likely be the vector of introduction. It was not recorded farther north along the coast of the Hauts-de-France. It is further hypothesized that the finding of a few specimens outside the harbor may facilitate the expansion of T. hadai in the English Channel by means of propagules dispersion.</p></div>Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Collections :

• Laboratoire d'Océanologie et de Géosciences (LOG) - UMR 8187

Source :

Harvested from HAL

Date de dépôt :

2025-01-23T17:13:09Z