Kahina Djaoudi

Postdoctoral Research Associate, Molecular and Cellular Biology
Department: 
MCB

My research interests include:
- Nutrients cycle and controlling processes.
- Enzymatic activities and consequences on remineralization rates and C:N:P ratios.
- Preferential remineralization in surface waters.
- Export and fate of marine organic matter.

My Main scientific achievements include;
- Quantification of atmospheric fluxes of organic matter including organic carbon, organic nitrogen and organic phosphate to the Mediterranean Sea.
- Quantification of the labile organic fraction of phosphate in atmospheric deposition and surface sea waters simultaneously, through enzymatic hydrolysis by alkaline phosphatase.
- Sensitive determination of the dissolved phosphate pool (including dissolved inorganic and organic phosphate) in the upper Mediterranean Sea with potential evidences on its important dynamic in the upper waters.
- Evidence of the bioavailability to marine heterotrophic prokaryotes of aerosol-derived organic matter from anthropogenic and desert sources.

Education
October 2014 - March 2018: PhD candidate in Oceanography
- Role of atmospheric deposition on biodegradation processes and stoichiometry of the dissolved organic matter pool in the upper waters of the Mediterranean Sea.
Supervisors: Elvira Pulido-Villena and France Van Wambeke.
Mediterranean Institute of Oceanography, CNRS & Aix-Marseille University, France.

2012 - 2014: Master’s degree in marine biogeochemistry and physics
Internship topics:
- Biogeochemistry of dissolved organic matter pool at the ocean-atmosphere interface: role of atmospheric inputs. (2014).
Supervisor: Elvira Pulido-Villena.
- Methodological development: wet oxidation and nutrient analysis (nitrogen, phosphate et silicate) by using the conventional colorimetric automated procedure (2013).
Supervisors: Thierry Moutin and Sandra Helias-Nunige.
Mediterranean Institute of Oceanography, CNRS & Aix-Marseille University, France.

2007 - 2012 : Marine engineer diploma, Ecole nationale supérieure des sciences de la mer et de l’aménagement du littoral (ENSSMAL), Algiers, Algeria.
Internship topic :
- Study of the carbonate system in the Bou-Ismail bay: role of the zone as a source or sink of CO2 to the atmosphere.
Supervisor: Nadira Ait Ameur
Ecole nationale supérieure des sciences de la mer et de l’aménagement du littoral (ENSSMAL), Algiers, Algeria.

My Field and Laboratory Work:

- Participation to the Peacetime cruise in the Mediterranean Sea (10 May 2017 – 12 June 2017). Duration: 32 days. http://peacetime-project.org/
- Monthly cruises in the North Western Mediterranean Sea (2015-2016): temporal monitoring of the marine biogeochemistry at the fixed observation station: MOOSE Antares. Duration: 1.5 years. http://www.moose-network.fr/
- Participation to the MOOSE-Ge cruises in the Western Mediterranean Sea (July 2014 and 2015). Duration: 40 days. http://www.moose-network.fr/
- Experimental work in the framework of minicosms (during the Peacetime cruise) and microcosms (in the laboratory) experiments. Preparation of natural inoculum and artificial seawater.