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. Biogeochemistry 83(1-3): 173-188. https://dx.doi.org/10.1007/s10533-007-9097-z
In: Biogeochemistry. Springer: Dordrecht; Lancaster; Boston. ISSN 0168-2563; e-ISSN 1573-515X, more
Also appears in:Van Leeuwe, M.A.; Stefels, J.; Belviso, S.; Lancelot, C.; Verity, P.G.; Gieskes, W.W.C. (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. https://dx.doi.org/10.1007/978-1-4020-6214-8, more
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| Keywords |
Aquatic communities > Plankton
Patchiness
Physics > Mechanics > Rheology
Properties > Physical properties > Mechanical properties > Viscosity
Turbulence
Phaeocystis globosa Scherffel, 1899 [WoRMS]
ANE, English Channel [Marine Regions]
Marine/Coastal |
| Author keywords |
Eastern English Channel; patchiness; Phaeocystic globosa; planktonrheology; turbulence |
| Authors | | Top |
- Seuront, L.
- Lacheze, C.
- Doubell, M.J.
- Seymour, J.R.
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- Van Dongen-Vogels, V.
- Newton, K.
- Alderkamp, A.-C.
- Mitchell, J.G.
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| 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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