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Increased appendicularian zooplankton alter carbon cycling under warmer more acidified ocean conditions
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2017 (Engelska)Ingår i: Limnology and Oceanography, ISSN 0024-3590, E-ISSN 1939-5590, Vol. 62, nr 4, s. 1541-1551Artikel i tidskrift (Refereegranskat) 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.

Ort, förlag, år, upplaga, sidor
John Wiley & Sons, 2017. Vol. 62, nr 4, s. 1541-1551
Nationell ämneskategori
Klimatforskning Naturgeografi Oceanografi, hydrologi och vattenresurser
Identifikatorer
URN: urn:nbn:se:umu:diva-137976DOI: 10.1002/lno.10516ISI: 000404993100016OAI: oai:DiVA.org:umu-137976DiVA, id: diva2:1129249
Tillgänglig från: 2017-08-02 Skapad: 2017-08-02 Senast uppdaterad: 2018-06-09Bibliografiskt granskad

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Båmstedt, Ulf

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Institutionen för ekologi, miljö och geovetenskap
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Limnology and Oceanography
KlimatforskningNaturgeografiOceanografi, hydrologi och vattenresurser

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