Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 438920
Title Long-Term Trends in Calcifying Plankton and pH in the North Sea
Author(s) Beare, D.J.; McQuatters-Gollop, A.; Hammen, T. van der; Machiels, M.A.M.; Teoh, S.J.
Source PLoS One 8 (2013)5. - ISSN 1932-6203 - 10 p.
DOI https://doi.org/10.1371/journal.pone.0061175
Department(s) IMARES Visserij
IMARES Vis
IMARES
Publication type Refereed Article in a scientific journal
Publication year 2013
Keyword(s) ocean acidification - carbonate chemistry - climate-change - atlantic - impacts - calcification - consistency - recorder - pacific
Abstract Relationships between six calcifying plankton groups and pH are explored in a highly biologically productive and data-rich area of the central North Sea using time-series datasets. The long-term trends show that abundances of foraminiferans, coccolithophores, and echinoderm larvae have risen over the last few decades while the abundances of bivalves and pteropods have declined. Despite good coverage of pH data for the study area there is uncertainty over the quality of this historical dataset; pH appears to have been declining since the mid 1990s but there was no statistical connection between the abundance of the calcifying plankton and the pH trends. If there are any effects of pH on calcifying plankton in the North Sea they appear to be masked by the combined effects of other climatic (e.g. temperature), chemical (nutrient concentrations) and biotic (predation) drivers. Certain calcified plankton have proliferated in the central North Sea, and are tolerant of changes in pH that have occurred since the 1950s but bivalve larvae and pteropods have declined. An improved monitoring programme is required as ocean acidification may be occurring at a rate that will exceed the environmental niches of numerous planktonic taxa, testing their capacities for acclimation and genetic adaptation.
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