Change search
ReferencesLink to record
Permanent link

Direct link
Temperature effects on phytoplankton diversity - The zooplankton link
Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences.
2014 (English)In: Journal of Sea Research, ISSN 1385-1101, Vol. 85, 359-364 p.Article in journal (Refereed) Published
Abstract [en]

Recent climate warming is expected to affect phytoplankton biomass and diversity in marine ecosystems. Temperature can act directly on phytoplankton (e.g. rendering physiological processes) or indirectly due to changes in zooplankton grazing activity. We tested experimentally the impact of increased temperature on natural phytoplankton and zooplankton communities using indoor mesocosms and combined the results from different experimental years applying a meta-analytic approach. We divided our analysis into three bloom phases to define the strength of temperature and zooplankton impacts on phytoplankton in different stages of bloom development. Within the constraints of an experiment, our results suggest that increased temperature and zooplankton grazing have similar effects on phytoplankton diversity, which are most apparent in the post-bloom phase, when zooplankton abundances reach the highest values. Moreover, we observed changes in zooplankton composition in response to warming and initial conditions, which can additionally affect phytoplankton diversity, because changing feeding preferences of zooplankton can affect phytoplankton community structure. We conclude that phytoplankton diversity is indirectly affected by temperature in the post-bloom phase through changing zooplankton composition and grazing activities. Before and during the bloom, however, these effects seem to be overruled by temperature enhanced bottom-up processes such as phytoplankton nutrient uptake.

Place, publisher, year, edition, pages
Elsevier, 2014. Vol. 85, 359-364 p.
Keyword [en]
Climate warming, Mesocosms, Plankton, Diversity
National Category
Zoology Oceanography, Hydrology, Water Resources
URN: urn:nbn:se:umu:diva-86337DOI: 10.1016/j.seares.2013.07.003ISI: 000329884700036OAI: diva2:698680
Available from: 2014-02-24 Created: 2014-02-24 Last updated: 2014-02-24Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Lengfellner, Kathrin
By organisation
Department of Ecology and Environmental Sciences
In the same journal
Journal of Sea Research
ZoologyOceanography, Hydrology, Water Resources

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 80 hits
ReferencesLink to record
Permanent link

Direct link