Issue |
Ann. Limnol. - Int. J. Lim.
Volume 33, Number 3, September 1997
|
|
---|---|---|
Page(s) | 197 - 203 | |
DOI | https://doi.org/10.1051/limn/1997019 | |
Published online | 15 March 2009 |
A new quantitative sediment corer for sampling invertebrates across the mud water interface and soil of shallow rice field
Un nouveau carottier pour échantillonner quantitativement les invertébrés de l'interface eau-vase et du sol d'une rizière
Laboratoire de Biologie Animale-Hydrobiologie, (U.P.R.E.S. -
E.A. n° 2152, Faculté des Sciences, 33 rue Louis Pasteur, F-84000
Avignon, France
A new corer is described which may be used in sediments of shallow standing waters, such as in rice fields, and which facilitates the study of the vertical distribution of the invertebrate fauna at 2 cm depth intervals. Its small surface area permits quantitative sampling of the sediment-dwelling fauna, particularly the chironomid larvae, around the roots of rice-plants. Results are presented and the efficiency of the sampling method is discussed.
Résumé
Description d'un carottier adapté aux eaux stagnantes peu profondes telles que les rizières et qui permet d'étudier la stratification de la faune invertébrée par tranches de 2 cm d'épaisseur. La surface réduite de l'appareil permet d'échantillonner quantitativement la faune fouisseuse, et plus particulièrement les larves de Chironomidés, dans la rhizosphère. Des résultats sont présentés et l'efficacité du carottier est discutée.
Key words: zoobenthos / chironomids / mud / rice field / sediment corer / vertical profile
Mots clés : zoobenthos / chironomidés / vase / rizière / carottier / profil vertical
© Université Paul Sabatier, 1997
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