The genus Eunotia on the volcanic island Ile Amsterdam (TAAF, southern Indian ocean).

• Published in: Nova Hedwigia
• Main Authors: Van De Vijver, Bart, Beyens, Louis, Lebouvier, Marc
• Other Authors: Department of Bryophyta and Thallophyta - National Botanic Garden of Belgium, National Botanic Garden of Belgium, Universiteit Antwerpen, Dept Biol, Universiteit Antwerpen, Ecosystèmes, biodiversité, évolution Rennes (ECOBIO), Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), IPEV, programme 136
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2008
• Subjects: [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces; environment; Indian; Île Amsterdam
• Online Access: https://hal.archives-ouvertes.fr/hal-00335217; https://doi.org/10.1127/0029-5035/2008/0087-0113

International audience During a preliminary survey of the non-marine diatom flora of the volcanic island, Île Amsterdam (southern Indian Ocean), five species belonging to the genus Eunotia have been found. Apart from Eunotia paludosa var. paludosa and E. muscicola var. muscicola, three appear to be new to science and are described as E. pugilistica Van de Vijver sp. nov., E. lecohui Van de Vijver sp. nov. and E. cocquytiae sp. nov. All species are fully investigated using both LM and SEM techniques. The new taxa are compared with similar species. Notes on their ecology and associated diatom communities are added. Finally, the biogeographical position of Île Amsterdam based on the genus Eunotia is briefly discussed.