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Increased appendicularian zooplankton alter carbon cycling under warmer more acidified ocean conditions
Stockholm University, Faculty of Science, Department of Ecology, Environment and Plant Sciences.
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Number of Authors: 14
2017 (English)In: Limnology and Oceanography, ISSN 0024-3590, E-ISSN 1939-5590, Vol. 62, no 4, 1541-1551 p.Article in journal (Refereed) Published
Abstract [en]

Anthropogenic atmospheric loading of CO2 raises concerns about combined effects of increasing ocean temperature and acidification, on biological processes. In particular, the response of appendicularian zooplankton to climate change may have significant ecosystem implications as they can alter biogeochemical cycling compared to classical copepod dominated food webs. However, the response of appendicularians to multiple climate drivers and effect on carbon cycling are still not well understood. Here, we investigated how gelatinous zooplankton (appendicularians) affect carbon cycling of marine food webs under conditions predicted by future climate scenarios. Appendicularians performed well in warmer conditions and benefited from low pH levels, which in turn altered the direction of carbon flow. Increased appendicularians removed particles from the water column that might otherwise nourish copepods by increasing carbon transport to depth from continuous discarding of filtration houses and fecal pellets. This helps to remove CO2 from the atmosphere, and may also have fisheries implications.

Place, publisher, year, edition, pages
2017. Vol. 62, no 4, 1541-1551 p.
National Category
Biological Sciences Earth and Related Environmental Sciences
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URN: urn:nbn:se:su:diva-145332DOI: 10.1002/lno.10516ISI: 000404993100016OAI: oai:DiVA.org:su-145332DiVA: diva2:1128801
Available from: 2017-07-28 Created: 2017-07-28 Last updated: 2017-07-28Bibliographically approved

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Winder, Monika
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