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The influence of Phaeocystis globosa on microscale spatial patterns of chlorophyll a and bulk-phase seawater viscosity
Seuront, L.; Lacheze, C.; Doubell, M.J.; Seymour, J.R.; Van Dongen-Vogels, V.; Newton, K.; Alderkamp, A.-C.; Mitchell, J.G. (2007). The influence of Phaeocystis globosa on microscale spatial patterns of chlorophyll a and bulk-phase seawater viscosity, in: Van Leeuwe, M.A. et al. (Ed.) (2007). Phaeocystis, major link in the biogeochemical cycling of climate-relevant elements. Biogeochemistry, 83(1-3): pp. 173-188
In: Van Leeuwe, M.A. et al. (Ed.) (2007). Phaeocystis, major link in the biogeochemical cycling of climate-relevant elements. Biogeochemistry, 83(1-3). Springer: Dordrecht. ISBN 978-1-4020-6213-1. 330 pp., more
In: Biogeochemistry. Springer: Dordrecht. ISSN 0168-2563, more
Peer reviewed article

Also published as
  • Seuront, L.; Lacheze, C.; Doubell, M.J.; Seymour, J.R.; Van Dongen-Vogels, V.; Newton, K.; Alderkamp, A.-C.; Mitchell, J.G. (2007). The influence of Phaeocystis globosa on microscale spatial patterns of chlorophyll a and bulk-phase seawater viscosity. Biogeochemistry 83(1-3): 173-188. dx.doi.org/10.1007/s10533-007-9097-z, more

Available in Authors 
  • VLIZ: Aquatic communities PBC [132103]
  • VLIZ: Open Repository 132137 [ OMA ]
Document type: Conference paper

Keywords
    Patchiness; Plankton; Rheology; Turbulence; Viscosity; Phaeocystis globosa Scherffel, 1899 [WoRMS]; ANE, English Channel [Marine Regions]; Marine

Authors  Top 
  • Seuront, L.
  • Lacheze, C.
  • Doubell, M.J.
  • Seymour, J.R.
  • Van Dongen-Vogels, V.
  • Newton, K.
  • Alderkamp, A.-C.
  • Mitchell, J.G.

Abstract
    A two-dimensional microscale (5 cm resolution) sampler was used over the course of a phytoplankton spring bloom dominated by Phaeocystis globosa to investigate the structural properties of chlorophyll a and seawater excess viscosity distributions. The microscale distribution patterns of chlorophyll a and excess viscosity were never uniform nor random. Instead they exhibited different types and levels of aggregated spatial patterns that were related to the dynamics of the bloom. The chlorophyll a and seawater viscosity correlation patterns were also controlled by the dynamics of the bloom with positive and negative correlations before and after the formation of foam in the turbulent surf zone. The ecological relevance and implications of the observed patchiness and biologically induced increase in seawater viscosity are discussed and the combination of the enlarged colonial form and mucus secretion is suggested as a competitive advantage of P. globosa in highly turbulent environments where this species flourishes.

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