Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 425287
Title Consequences of acclimation to Microcystis on the selective feeding behavior of the calanoid copepod Eudiaptomus gracilis
Author(s) Ger, K.A.; Panosso, R.; Lürling, M.F.L.L.W.
Source Limnology and Oceanography 56 (2011)6. - ISSN 0024-3590 - p. 2103 - 2114.
DOI http://dx.doi.org/10.4319/lo.2011.56.6.2103
Department(s) Aquatic Ecology and Water Quality Management
WIMEK
Publication type Refereed Article in a scientific journal
Publication year 2011
Keyword(s) eurytemora-affinis - toxic cyanobacteria - daphnia-pulicaria - green-alga - zooplankton communities - pseudodiaptomus-forbesi - nodularia-spumigena - population-growth - acartia-bifilosa - food selection
Abstract We tested the hypothesis that calanoid copepods would adapt to extended periods of Microcystis exposure by increasing selective feeding on alternative food. Copepod (Eudiaptomus gracilis) clearance rates were compared before and after a 5-d acclimation to Microcystis aeruginosa using paired food mixtures containing a microcystin-producing (MC+) or -lacking (MC-) strain and the green alga Chlamydomonas reinhardtii. Acclimation reduced the ingestion of Microcystis, increased ingestion of Chlamydomonas, and subsequently increased feeding selectivity. The effect of acclimation was more pronounced for food mixtures with MC+ Microcystis, suggesting that E. gracilis uses a strain-specific cue related to microcystin or microcystin itself to avoid harmful food. The results indicate that exposure to sublethal abundances of Microcystis may increase copepod tolerance to blooms, given sufficient alternative food. Zooplankton grazing behavior should, therefore, be viewed as flexible and adaptive to extended periods of cyanobacteria blooms.
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