Skip Navigation



JPR Advance Access published online on May 24, 2008
Journal of Plankton Research, doi:10.1093/plankt/fbn054
This Article
Right arrow Full Text (PDF)
Right arrow All Versions of this Article:
30/9/1027    most recent
fbn054v1
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Thyssen, M.
Right arrow Articles by Denis, M.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Thyssen, M.
Right arrow Articles by Denis, M.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

© The Author 2008. Published by Oxford University Press. All rights reserved. For permissions, please email: journals.permissions@oxfordjournals.org

Short-term variation of phytoplankton assemblages in Mediterranean coastal waters recorded with an automated submerged flow cytometer

Melilotus Thyssen1, Delphine Mathieu1, Nicole Garcia1 and Michel Denis1

1 Laboratoire de Microbiologie, Géochimie et Ecologie Marines, CNRS UMR 6117, Université de la Méditerranée, Centre d'Océanologie de Marseille, 163 avenue de Luminy, Case 901, 13288 Marseille cedex 09, France

CORRESPONDING AUTHOR: E-mail melilotus.thyssen{at}com.univmed.fr

Received on January 8, 2008; revised on May 15, 2008; accepted on May 21, 2008


  Abstract

Short-term variations of phytoplankton communities are poorly documented. To overcome these limitations and make observations on a short-time (hours) scale, we moored a submersible flow cytometer (CytoBuoy b.v.) in the Bay of Marseille. The CytoSub monitored phytoplankton every 30 min at a fixed site (2 m depth) during summer 2005. The data treatment, conducted on the basis of pulse-shape analysis, resolved 7 clusters. Daily sampling of nutrients (n and continuous information on salinity, temperature and wind speed allowed dist between distinction between diel cycles and the impact of environmental factors on phytoplankton communities. Autocorrelation of the time series showed a significant periodicity of about 24 h for most of the clusters during undisturbed meteorological conditions. Two clusters had regular daily abundance variations in the range 0– > 103 cells.cm–3. Two strong wind events revealed similar cluster succession patterns occurring over several days after the wind events. These results provided by the high frequency in situ analysis suggest that the flow cytometry resolved clusters, showing independent behaviour and distinct environment-correlated variations, which may be considered as functional groups. We point out its potential for global oceanic observing systems for which such systems could provide real biological information.

Key Words: phytoplankton • high frequency sampling • automated flow cytometry • functional groups

Communicating Editor: Dr William Li


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?




Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.