The influence of wind-induced mixing on the vertical distribution of buoyant and sinking phytoplankton species

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dc.contributor.author Moreno-Ostos, Enrique
dc.contributor.author Cruz-Pizarro, Luis
dc.contributor.author Basanta, Ana
dc.contributor.author George, D. Glen
dc.date.accessioned 2011-06-27T09:18:42Z
dc.date.available 2011-06-27T09:18:42Z
dc.date.issued 2009-06-01
dc.identifier.citation Moreno-Ostos , E , Cruz-Pizarro , L , Basanta , A & George , D G 2009 , ' The influence of wind-induced mixing on the vertical distribution of buoyant and sinking phytoplankton species ' Aquatic Ecology , vol 43 , no. 2 , pp. 271-284 . en
dc.identifier.issn 1573-5125
dc.identifier.other PURE: 168284
dc.identifier.other dspace: 2160/7104
dc.identifier.uri http://hdl.handle.net/2160/7104
dc.description Moreno-Ostos, E., Cruz-Pizarro, L., Basanta, A., George, D. G. (2009). The influence of wind-induced mixing on the vertical distribution of buoyant and sinking phytoplankton species. Aquatic Ecology, 43 (2), 271-284. en
dc.description.abstract In this study we exploit recent advances in high-resolution autonomous monitoring to investigate the impact of short-term variations in wind-induced mixing on the surface biomass and vertical distribution of buoyant and sinking phytoplankton species. An autonomous platform (the Automatic Water Quality Monitoring Station) moored in a Mediterranean reservoir provided minute-by-minute records of wind speed and the phytoplankton fluorescence during winter and summer. This information was then used here to quantify the impact of short-term changes in the weather on the vertical distribution of diatoms and cyanobacteria. Additionally, we apply an empirical model to determine the extent of entrainment of diatoms and cyanobacteria within the turbulent upper layers of the water column. During winter, the surface time series of fluorescence was positively correlated with the short-term variations in wind speed. In contrast, during the summer, fluorescence was negatively correlated with wind speed. In the latter case, turbulence overcame the flotation velocity of buoyant cyanobacteria, thus homogenizing their vertical distribution and decreasing surface biomass. In both cases, the dynamic response of surface phytoplankton biomass to short-term changes in wind stress was rapid, within the minute scale. As far as we know from the literature, this is the first study in which the interaction between wind stress and surface phytoplankton fluorescence has been quantified on such a fine temporal scale. Finally, relevance for forecasting and reservoir management is pointed out. en
dc.format.extent 14 en
dc.language.iso eng
dc.relation.ispartof Aquatic Ecology en
dc.subject automatic monitoring en
dc.subject cyanobacteria en
dc.subject diatoms en
dc.subject El Gergal reservoir en
dc.subject entrainment en
dc.subject wind stress en
dc.title The influence of wind-induced mixing on the vertical distribution of buoyant and sinking phytoplankton species en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.identifier.doi http://dx.doi.org/10.1007/s10452-008-9167-x
dc.contributor.institution Institute of Geography & Earth Sciences en
dc.contributor.institution Other IGES Research en
dc.description.status Peer reviewed en


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