Changes in marine dinoflagellate and diatom abundance under climate change

Hinder, Stephanie L., Hays, Graeme C., Edwards, Martin, Roberts, Emily C., Walne, Anthony W. and Gravenor, Mike B. 2012, Changes in marine dinoflagellate and diatom abundance under climate change, Nature climate change, vol. 2, pp. 271-275, doi: 10.1038/NCLIMATE1388.

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Title Changes in marine dinoflagellate and diatom abundance under climate change
Author(s) Hinder, Stephanie L.
Hays, Graeme C.ORCID iD for Hays, Graeme C.
Edwards, Martin
Roberts, Emily C.
Walne, Anthony W.
Gravenor, Mike B.
Journal name Nature climate change
Volume number 2
Start page 271
End page 275
Total pages 5
Publisher Nature Publishing Group
Place of publication New York, N.Y.
Publication date 2012
ISSN 1758-678X
Keyword(s) biodiversity and ecosystems
biological sciences
Summary Marine diatoms and dinoflagellates play a variety of key ecosystem roles as important primary producers (diatoms and some dinoflagellates) and grazers (some dinoflagellates). Additionally some are harmful algal bloom (HAB) species and there is widespread concern that HAB species may be increasing accompanied by major negative socio-economic impacts, including threats to human health and marine harvesting1, 2. Using 92,263 samples from the Continuous Plankton Recorder survey, we generated a 50-year (1960–2009) time series of diatom and dinoflagellate occurrence in the northeast Atlantic and North Sea. Dinoflagellates, including both HAB taxa (for example, Prorocentrum spp.) and non-HAB taxa (for example, Ceratium furca), have declined in abundance, particularly since 2006. In contrast, diatom abundance has not shown this decline with some common diatoms, including both HAB (for example, Pseudo-nitzschia spp.) and non-HAB (for example, Thalassiosira spp.) taxa, increasing in abundance. Overall these changes have led to a marked increase in the relative abundance of diatoms versus dinoflagellates. Our analyses, including Granger tests to identify criteria of causality, indicate that this switch is driven by an interaction effect of both increasing sea surface temperatures combined with increasingly windy conditions in summer.
Language eng
DOI 10.1038/NCLIMATE1388
Field of Research 069999 Biological Sciences not elsewhere classified
Socio Economic Objective 970106 Expanding Knowledge in the Biological Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2002, Nature Publishing Group
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