Growth of Elodea canadensis and Elodea nuttallii in monocultures and mixture under different light and nutrient conditions

Author: Barrat-Segretain, Marie-Hélène

Source: Archiv für Hydrobiologie, Vol. 161 No. 1 2004 , pp. 133-144(12)

Publisher: E. Schweizerbart'sche Verlagsbuchhandlung

Buy & download fulltext article:

Price: $39.00 plus tax (Refund Policy)

Abstract:

Elodea canadensis and Elodea nuttallii were used in indoor experiments to compare their survival and growth in monocultures and mixture, (1) under different light intensities and (2) in water enriched or not enriched with phosphate. In all cases, E. nuttallii grew better than E. canadensis. The growth of E. canadensis was affected by a reduction in light intensity, contrary to that of E. nuttallii. Increasing phosphate-content of water did not affect the stem elongation of Elodea species, but increased the growth rate of E. nuttallii calculated on dry weight. It is hypothesised that the formation of a canopy of E. nuttallii shading E. canadensis is a key factor in explaining the success of E. nuttallii in the field particularly under eutrophic conditions, differences in nutrient uptake between the two species being of secondary importance.

Keywords: ELODEA; ENVIRONMENTAL FACTORS; GROWTH INTERACTIONS; INVASIVE PLANT SPECIES

Document Type: Research article

DOI: http://dx.doi.org/10.1127/0003-9136/2004/0161-0133

Publication date: 2004-09-01

More about this publication?

Archiv f�r Hydrobiologie has been relaunched under its new title Fundamental and Applied Limnology/Archiv f�r Hydrobiologie starting with Volume 168.
Editorial Board
Information for Authors
Submit a Paper
Subscribe to this Title
ingentaconnect is not responsible for the content or availability of external websites