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| Titel |
High tolerance of microzooplankton to ocean acidification in an Arctic coastal plankton community |
| VerfasserIn |
N. Aberle, K. G. Schulz, A. Stuhr, A. M. Malzahn, A. Ludwig, U. Riebesell |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1726-4170
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| Digitales Dokument |
URL |
| Erschienen |
In: Biogeosciences ; 10, no. 3 ; Nr. 10, no. 3 (2013-03-05), S.1471-1481 |
| Datensatznummer |
250018136
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| Publikation (Nr.) |
 copernicus.org/bg-10-1471-2013.pdf |
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| Zusammenfassung |
| Impacts of ocean acidification (OA) on marine biota have been observed in a
wide range of marine systems. We used a mesocosm approach to study the
response of a high Arctic coastal microzooplankton community during the
post-bloom period in Kongsfjorden (Svalbard) to direct and indirect
effects of high pCO2/low pH. We found almost no direct effects of OA
on microzooplankton composition and diversity. Both the relative shares of
ciliates and heterotrophic dinoflagellates as well as the taxonomic
composition of microzooplankton remained unaffected by changes in
pCO2/pH. Although the different pCO2 treatments affected food
availability and phytoplankton composition, no indirect effects (e.g. on the
total carrying capacity and phenology of microzooplankton) could be observed.
Our data point to a high tolerance of this Arctic microzooplankton community
to changes in pCO2/pH. Future studies on the impact of OA on plankton
communities should include microzooplankton in order to test whether the
observed low sensitivity to OA is typical for coastal communities where
changes in seawater pH occur frequently. |
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