Alexandra Lepoutre Ecotoxicology, biomonitoring

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Professional Experiences
2015 - 2018

PhD in Ecotoxicology UMRI-02 SEBIO
Université de Reims Champagne-Ardenne

I work on the study of the relevance of bivalves as bioindicators of the presence of cyanobacteria and cyanotoxins in aquatic ecosystems. To achieve this, I :
• Performed laboratory studies on the toxicokinetics of microcystins and β-N-methylamino-L-alanine (BMAA) in the zebra mussel Dreissena polymorpha and the duck mussel Anodonta anatina
• Performed filed studies with active caging of both species
• Participated in trials to improve the technique of total microcystin extraction in collaboration with Ifremer (Nantes)
• Had a 2-month stay in Wageningen (Netherlands) at the Aquatic Ecology and Water Quality Management Group to extract bivalve samples exposed to BMAA

Superviror : Dr Emilie Lance :

February - June 2015

Master 2 degree internship

Study of the viability of Toxoplasma gondii after bioaccumulation by Dreissena polymorpha. This was studied through :
• In vivo exposure of zebra mussels to T. gondii oocysts
• Realization of PMA-PCR and RT-PCR

Superviror : Dr Aurélie Bigot-Clivot :

May - June 2014 Master 1 degree internship

Effects of a Drug (carbamazepine) on the Physiological Responses of the zebra mussel (Mesocosm Study)
• Measurement of the relative expression of genes (qPCR) involved in digestion and byssal formation.

Superviror : Dr Aurélie Bigot-Clivot :

Junu - July 2013

Voluntary internship
Study of the impact of different contaminants on the immune system of the zebra mussel (flow cytometer study).
• Ex vivo exposure of mussels haemocytes to a drug substance (diclofenac), a component of the heavy metal family (cadmium) and a herbicide compound (glyphosate)
• Measurement of viability, ability and efficiency of phagocytosis as well as oxidative outburst of dreissenes hemocytes by flow cytometry

Superviror : Dr Aurélie Bigot-Clivot :



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