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dc.contributor.authorBerdalet, Elisa-
dc.contributor.authorLlaveria, Gisela-
dc.contributor.authorArtigas, Mireia L.-
dc.contributor.authorQuesada, R.-
dc.contributor.authorPiera, Jaume-
dc.contributor.authorEstrada, Marta-
dc.identifierissn: 1538-182X-
dc.identifier.citationGEOHAB modelling: linking observations to predictions: a workshop report: 67 (2011)-
dc.identifier.citationGEOHAB Report 8: 67 (2011)-
dc.descriptionGlobal Ecology and Oceanography of Harmful Algal Blooms (GEOHAB) Modelling Workshop Galway, Ireland, June 2009.-- 1 page-
dc.description.abstractLaboratory studies have shown that small-scale turbulence may interfere with different physiological processes on phytoplankton cells. Relevant observations include: 1) changes in the metabolite fluxes in and out of the cell, 2) changes in the morphology and cellular volume, 3) alterations of the cellular content of DNA, toxins or DMSP, 4) modifications of the cell division and live cycles (cyst formation) and of motility patterns, 5) interferences with predator-prey and parasite-host interactions, and 6) cell death. Altogether, these results point to the particular sensitivity of dinoflagellates to small-scale turbulence, although the fundamental mechanisms of these responses are not known. One challenge now is to ascertain to what extent experimental laboratory designs and setups approximate natural conditions and how the physiological capacities of the organisms interact with other biological factors, environmental forcings and water circulation at a variety of spatio-temporal scales, to determine the dynamics of dinoflagellate populations in nature. With this objective in mind, we are conducting a multidisciplinary study in the Alfacs Bay (Ebro Delta, NW Mediterranean). Velocity data have been almost continuously recorded during 2 years by a 2MHz acoustic Doppler current profiler deployed on a fixed station (6 m depth). Additional physical (using a CTD and a SCAMP microstructure probe) and biological (chlorophyll concentration, phytoplankton species composition) parameters have been obtained from several sampling points. Meteorological data are provided by a nearby station. We will show our preliminary results on the main scenarios under which several HABs have occurred during this period.-
dc.publisherInternational Council of Scientific Unions. Scientific Committee on Oceanic Research-
dc.publisherIntergovernmental Oceanographic Commission-
dc.relation.isversionofPublisher's version-
dc.titleEcophysiology of phytoplankton under small scale turbulence: From the laboratory to the modulation of natural blooms-
dc.typeinforme técnico-
Appears in Collections:(ICM) Informes y documentos de trabajo
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