docThe Laboratory for Oceanology – MARE Center
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The Laboratory for Oceanology – MARE Center
The Laboratory for Oceanology – MARE Center Krishna K i h D Das – PhD F.R.S. – FNRS Research Associate http://www.ulg.ac.be/oceanbio/ • • • • • One academic Six permanent scientists post-doctoral fellow One p Ten PhD students Around 10 Master students per year Contact information • • • • • • [email protected] (Sylvie Gobert) [email protected] (Krishna Das) G Lepoint@ulg ac be (Gilles Lepoint) [email protected] M.Gré[email protected] (Marilaure Grégoire) [email protected] (Anne Goffart) JH Hecq@ulg ac be (Jean-Henri Hecq) [email protected] http://www2 ulg ac be/oceanbio/ http://www2.ulg.ac.be/oceanbio/ Laboratory for Oceanology Seagrass ecology Modelling Plankton, ecohydrodynamisms Trophic chains Ecotoxicology Laboratory for Oceanology Seagrass ecology 5. Modelling 2. Trophic chains 4. Plankton, 4 Plankton ecohydrodynamis ms 3. Ecotoxicology 1. Ecology of Seagrass STARESO Unique benthic ecosystem: oligotrophic environment • Spatio-temporal structure g dynamics y • Nitrogen • Anthropogenic activities Laboratory for Oceanology Seagrass ecology 5. Modelling 4. Plankton, ecohydrodynamisms 2. Trophic chains 3. Ecotoxicology 2. Trophic chains “You You are what you eat …plus plus a few per mille” De Niro and Epstein. 1976. Geol. Soc. Am. Abs. Prog. 8 : 834-835 Carnivorous mammal Trophic T hi position δ15N 0.5 – 1 ‰ 1–3‰ Fish Zooplancton Algae δ13C indicator of primary productivity Trophic ecology of seagrass ecosystems Diversity and trophic ecology of benthic amphipods Isotope ratios I t ti mass spectrometry Laboratory for Oceanology Seagrass ecology Modelling Plankton, ecohydrodynamisms Trophic chains Ecotoxicology Toxicity of pollutants in the marine environment populations? individuals? Metals POPs ecosystems? Other organic pollutants Pollutant levels? Pollutant effects? ff t ? Toxicokinetics and transfer to offspring Trace elements EA-IRMS Homogeneisation Eth D Ethos tissue • Microwave assisted digestion DMA M Mercury analyzer l ELAN DRCII • Results ¾ Zn, Cu, Se, Cd, Pb, Fe ¾ T-Hg, T Hg MeHg Organic pollutants y PBDEs - Polybrominated diphenyl ethers y and metabolites (University of Antwerp) y PCBs -Polychlorobiphenyls and metabolites (U i (University i off A Antwerp)) y Other pesticides (CART (CART, University of Liege) y Dioxins, furans (CART, University of Liege) Pollutant impact y Environnemental contamination y Diet (δ13C and δ15N) y But also key-period Migration Gestation Lactation Spawning Fasting (linked to lactation, molting, migration) Northern Elephant p seal Mirounga g angustirostris g ~ 25 da ays Early lactation x4 x 1/3 Pictures from Pr. Cathy Debier, UCL Late lactation Northern Elephant p seal Mirounga g angustirostris g @Sarah Habran Sarah Habran, F.R.S. – FNRS Research Fellow Northern Elephant p seal Mirounga g angustirostris g Rookery ► Wild animals Blood Milk Blubber • representative of the wild population • less invasive sampling techniques ► Easily accessible Pictures from Pr. Cathy Debier, UCL Biomarkers y Metallothioneins MTs y Thyroid hormones T3 et T4 y Vitamin A (UCL) y glutathion-peroxydase GPx (UCL) y Histology Hi t l y Proteomics Laboratory for Oceanology Seagrass ecology Modelling Plankton, ecohydrodynamisms Trophic chains Ecotoxicology The Dynamic and Diversity of the plankton AUSTRAL OCEAN MEDITERRANEAN, CORSICAN SHELF Laboratory for Oceanology Presented by Pr. J.-M. B k Beckers Seagrass ecology Modelling Plankton, ecohydrodynamisms Trophic chains Ecotoxicology Thanks for your attention! And if you wish further reading… Please run and connect to: http://orbi.ulg.ac.b p g e/ The Laboratory for Oceanology – MARE Center Krishna K i h D Das – PhD F.R.S. – FNRS Research Associate http://www.ulg.ac.be/oceanbio/
