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New occurrence of Lecane decipiens (Murray, 1913) and some other alien rotifers in the Schelde estuary (Belgium)

Azémar, Frédéric and Van Damme, Stefan and Meire, Patrick and Tackx, Micky New occurrence of Lecane decipiens (Murray, 1913) and some other alien rotifers in the Schelde estuary (Belgium). (2007) Belgian Journal of Zoology, 137 (1). 75-83. ISSN 0777-6276

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Abstract

Three alien rotifers were found in the Schelde estuary in spring and summer 2002-2003. Lecane decipiens and Brachionus variabilis, with a maximum of respectively 6 and 4 ind L-1, were rare and quite localized in the freshwater tidal reach, corresponding to the stage III (non invasive species) in Colautti and Mac Isaac’s invasion terminology. This record of L. decipiens is the first confirmed one in Europe. Keratella tropica was generally present in the freshwater reach but, more tolerant to salinity, it was also found in brackish water. With its maximum abundance of 18 ind L-1, K. tropica appeared to be invasive, with a stage IVa (widespread but rare) at the scale of the Schelde estuary. A description with illustrations of these introduced species is given with some information about their ecology.

Item Type:Article
Additional Information:Thanks to The Royal Belgian Zoological Society editor. The definitive version is available at http://www.naturalsciences.be/institute/associations/rbzs_website/bjz/back/contents_137_1
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > Universiteit Antwerpen - UA (BELGIUM)
Laboratory name:
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Deposited By: Frédéric Azémar
Deposited On:16 May 2014 09:40

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