Reference : Exploring a Mediterranean mesozooplankton 13 year time-series.
Scientific congresses and symposiums : Poster
Life sciences : Aquatic sciences & oceanology
Exploring a Mediterranean mesozooplankton 13 year time-series.
Fullgrabe, Lovina [Université de Liège - ULiège > > Océanologie > >]
Richir, Jonathan mailto [Université de Liège > Département de Biologie, Ecologie et Evolution > Océanographie biologique >]
Batigny, Antoine [U Mons > > > >]
Leduc, Michele [STARESO > > > >]
Dauby, Patrick mailto [Université de Liège > Département de Biologie, Ecologie et Evolution > Systématique et diversité animale >]
Lejeune, Pierre [STARESO > > > >]
Grosjean, Philippe [U Mons > > > >]
Gobert, Sylvie mailto [Université de Liège > Département de Biologie, Ecologie et Evolution > Océanographie biologique >]
23rd Congress of Zoology
16-17 december 2016
Belgian and Dutch Royal Societies of Zoology
[en] Zooplankton ; Global changes ; Mediterranean Sea ; Corsica ; ZooImage
[en] Zooplankton plays diverse crucial roles within the marine ecosystem and can also be used as bio- indicator of climate changes since it is very sensitive to environmental changes. Therefore it is essential to consider long-term plankton series. Given the analysis of plankton samples is time- consuming, it requires an effective and rapid analytical method. We have used in this work a supervised learning approach adapted for the semi-automatic classification of digital images of the mesozooplankton of the Bay of Calvi (Corsica, France) by using the Zoo/PhytoImage software. Together with a 11-years long zooplankton time-series, a set of nine environmental variables were monitored in order to identify controlling factors and determine whether the communities were sensitive to global environmental changes. The main components of the mesozooplankton community were characterized by both seasonal and inter-annual variability. Additionally, variation of holoplankton and meroplankton differentiated one from each other. The holoplanktonic community could be split into two subgroups according to its variation in function of the environment: cladocerans and appendicularians, and to a lesser extent, copepods on one hand, and cnidarians, chaetognathes and thaliaceans, on the other hand. Regarding inter-annual variation, one year (2007) showed particularly low production of total zooplankton which was also the case for all the different holoplanktonic taxa. Accounting for that phenomenon were identified some potentially underlying environmental factors. Finally, although water temperature increased significantly over the last years along with the frequency of marine heat wave events, no evident change in the global zooplankton composition was observed yet.
EcoNum UMONS, Océanologie ULg, STARESO SAS
La Collectivité Territoriale de Corse et l'Agence de l'Eau Française (PACA-Corsica)
Researchers ; Professionals ; Students

File(s) associated to this reference

Fulltext file(s):

Open access
Lovina Fullgrabe poster Zoology 2016 final version.pdfAuthor postprint10.11 MBView/Open
Open access
2016-12-14_10h30ZOOLOGY 2016_abstract_book.pdfPublisher postprint2.58 MBView/Open

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.