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dc.contributor.authorBiggs, Tristan E Gen_UK
dc.contributor.authorAlvarez-Fernandez, Santiagoen_UK
dc.contributor.authorEvans, Claireen_UK
dc.contributor.authorMojica, Kristina D Aen_UK
dc.contributor.authorRozema, Patrick Den_UK
dc.contributor.authorVenables, Hugh Jen_UK
dc.contributor.authorPond, David Wen_UK
dc.contributor.authorBrussaard, Corina P Den_UK
dc.description.abstractClimate change at the Western Antarctic Peninsula (WAP) is predicted to cause major changes in phytoplankton community composition, however, detailed seasonal field data remain limited and it is largely unknown how (changes in) environmental factors influence cell size and ecosystem function. Physicochemical drivers of phytoplankton community abundance, taxonomic composition and size class were studied over two productive austral seasons in the coastal waters of the climatically sensitive WAP. Ice type (fast, grease, pack or brash ice) was important in structuring the pre-bloom phytoplankton community as well as cell size of the summer phytoplankton bloom. Maximum biomass accumulation was regulated by light and nutrient availability, which in turn were regulated by wind-driven mixing events. The proportion of larger-sized (> 20 µm) diatoms increased under prolonged summer stratification in combination with frequent and moderate-strength wind-induced mixing. Canonical correspondence analysis showed that relatively high temperature was correlated with nano-sized cryptophytes, whereas prymnesiophytes (Phaeocystis antarctica) increased in association with high irradiance and low salinities. During autumn of Season 1, a large bloom of 4.5-µm-sized diatoms occurred under conditions of seawater temperature > 0 °C and relatively high light and phosphate concentrations. This bloom was followed by a succession of larger nano-sized diatoms (11.4 µm) related to reductions in phosphate and light availability. Our results demonstrate that flow cytometry in combination with chemotaxonomy and size fractionation provides a powerful approach to monitor phytoplankton community dynamics in the rapidly warming Antarctic coastal waters.en_UK
dc.relationBiggs TEG, Alvarez-Fernandez S, Evans C, Mojica KDA, Rozema PD, Venables HJ, Pond DW & Brussaard CPD (2019) Antarctic phytoplankton community composition and size structure: importance of ice type and temperature as regulatory factors. Polar Biology, 42 (11), pp. 1997-2015.
dc.rights© The Author(s) 2019 This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (, which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.en_UK
dc.subjectCellular carbonen_UK
dc.subjectFlow cytometryen_UK
dc.subjectIce typeen_UK
dc.subjectSize fractionationen_UK
dc.titleAntarctic phytoplankton community composition and size structure: importance of ice type and temperature as regulatory factorsen_UK
dc.typeJournal Articleen_UK
dc.citation.jtitlePolar Biologyen_UK
dc.type.statusVoR - Version of Recorden_UK
dc.contributor.funderNetherlands Organisation for Scientific Researchen_UK
dc.contributor.affiliationUniversity of Amsterdamen_UK
dc.contributor.affiliationAlfred Wegener Institute, Helmholtz Centre for Polar and Marine Researchen_UK
dc.contributor.affiliationNational Oceanography Centreen_UK
dc.contributor.affiliationOregon State Universityen_UK
dc.contributor.affiliationUniversity of Groningenen_UK
dc.contributor.affiliationBritish Antarctic Surveyen_UK
dc.contributor.affiliationInstitute of Aquacultureen_UK
dc.contributor.affiliationUtrecht Universityen_UK
dc.description.refREF Compliant by Deposit in Stirling's Repositoryen_UK
Appears in Collections:Aquaculture Journal Articles

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