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  Complementary impact of copepods on phytoplankton.

Sommer, U., Sommer, F., Santer, B., Jamieson, C., Boersma, M., Becker, C., et al. (2001). Complementary impact of copepods on phytoplankton. Ecology Letters, 4(6), 545-550.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-DE44-3 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-DE45-1
Genre: Journal Article

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Sommer, U., et al., 2001, S- 37729.pdf (Publisher version), 214KB
 
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Sommer, U., et al., 2001, S- 37729.pdf
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 Creators:
Sommer, Ulrich1, Author              
Sommer, Frank, Author
Santer, Barbara1, Author              
Jamieson, Colleen1, Author              
Boersma, Maarten1, Author              
Becker, Claes1, Author              
Hansen, Thomas, Author
Affiliations:
1Department Ecophysiology, Max Planck Institute for Limnology, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_976547              

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Free keywords: Cladocera; Copepoda; herbivory; phytoplankton; size spectrum; top-down control; zooplankton
 Abstract: The differences in the impact of two major groups of herbivorous zooplankton (Cladocera and Copepoda) on summer phytoplankton in a mesotrophic lake were studied. Field experiments were performed in which phytoplankton were exposed to different densities of two major types of herbivorous zooplankton, cladocerans and copepods. Contrary to expectation, neither of the two zooplankton groups significantly reduced phytoplankton biomass. However, there were strong and contrasting impacts on phytoplankton size structure and on individual taxa. Cladocerans suppressed small phytoplankton, while copepods suppressed large phytoplankton. The unaffected size classes compensated for the loss of those affected by enhanced growth. After contamination of the copepod mesocosms with the cladoceran Daphnia, the combined impact of both zooplankton groups caused a decline in total phytoplankton biomass

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Language(s): eng - English
 Dates: 2001-11
 Publication Status: Published in print
 Pages: -
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 Rev. Method: -
 Identifiers: eDoc: 114933
Other: 2032/S37729
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Title: Ecology Letters
Source Genre: Journal
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Pages: - Volume / Issue: 4 (6) Sequence Number: - Start / End Page: 545 - 550 Identifier: ISSN: 1461-023X