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  Responses of Phytoplankton and Submerged Aquatic Macrophytes to Experimental Nutrient Enrichment in the Pantanal, Mato Grosso (Brazil): First Results

Adler, M., & Junk, W. J. (2002). Responses of Phytoplankton and Submerged Aquatic Macrophytes to Experimental Nutrient Enrichment in the Pantanal, Mato Grosso (Brazil): First Results. In R. Lieberei, H. Bianchi, V. Boehm, & C. Reisdorff (Eds.), Neotropical Ecosystems: Proceedings of the German-Brazilian Workshop, Hamburg 2000 (pp. 899-902). Geesthacht: GKSS-Forschungszentrum.

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 Creators:
Adler, Maren, Author
Junk, Wolfgang Johannes1, Author           
Affiliations:
1Working Group Tropical Ecology, Max Planck Institute for Limnology, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_976549              

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Free keywords: Pantanal of Mato Grosso; Algae; Aquatic macrophytes; Competition; Enclosure experiments; Nutrients
 Abstract: As one of the largest wetlands in the world, the Pantanal, located in the NW-Brazil, is mainly influenced by the seasonal changes of dryness and flooding. During low water level, large amounts of nutrients become available and high phytoplankton concentrations are observed. Submersed aquatic macrophytes are strongly reduced. During the period of high water level the concentration of available nutrients in the water is very low and the nutrients are mostly incorporated by free floating and submersed macrophytes. The competition between submersed macrophytes and phytoplankton under different nutrient conditions was examined using enclosures with and without addition of nutrients in order to determine limiting factors. Aquatic macrophytes dominated under most experimental conditions except high ammonia concentration. However, starting conditions had a strong influence on the result of the experiments. In addition to nutrients, competition for light seems to be important for the dominance of algae or aquatic macrophyte communities. The results are expected to contribute to environmental assessment and sustainable management of the Pantanal.

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Language(s): eng - English
 Dates: 2002
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: eDoc: 31807
Other: 2194/S 37926
 Degree: -

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Title: Neotropical Ecosystems. Proceedings of the German-Brazilian Workshop, Hamburg 2000
Place of Event: Hamburg
Start-/End Date: 2000-09-03 - 2000-09-08

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Title: Neotropical Ecosystems : Proceedings of the German-Brazilian Workshop, Hamburg 2000
Source Genre: Proceedings
 Creator(s):
Lieberei, Reinhard, Editor
Bianchi, Helmut, Editor
Boehm, Vera, Editor
Reisdorff, Christoph, Editor
Affiliations:
-
Publ. Info: Geesthacht : GKSS-Forschungszentrum
Pages: book with abstracts and CD-ROM with fulltexts Volume / Issue: - Sequence Number: - Start / End Page: 899 - 902 Identifier: ISBN: 3-00-010691-X