Aquatic microbial ecology


Address: UMR iEES-Paris, Sorbonne Université, Tour 44-45, Campus Pierre et Marie Curie, 4 place Jussieu, 75005 Paris, France

Phone: +33 (0)1 44 27 38 26

Email: emma.rochelle-newall|DONTWANTSPAM|@ird.fr

Main fields of research and expertise

The central theme of the research of Emma Rochelle-Newall is the study of the ecology of heterotrophic bacteria in aquatic environments. She also looks at how anthropogenic impacts such as increasing inorganic and organic waste alter the transfer of carbon between the autotrophic and heterotrophic compartments in order to understand the impacts of human activities in aquatic systems. She has experience of working with a wide range of techniques (cultures, mesocosms, in situ) and in a wide range of situations (ship, field, laboratory) and countries (Vietnam, Laos, New Caledonia, Fiji, USA, and across Europe). Another, more recent aspect of her work concerns how pathogens disseminate and proliferate in aquatic ecosystems and how environmental degradation in developing countries is altering the ecology of these microbes. She also regularly gives courses on how to write scientific articles for scholarly journals. These classes are specifically aimed at building the research capacity of students and young researchers from developing countries.

Selected publications

Huong Thi Mai, N., G. Billen, J. Garnier, L. Thi Phuong Quynh, P. Quoc Long, S. Huon and E. Rochelle-Newall (2018). “Organic carbon transfers in the subtropical Red River system (Viet Nam): insights on CO2 sources and sinks.” Biogeochemistry 138(3): 277-295.

Le, H. T., E. Rochelle-Newall, Y. Auda, O. Ribolzi, O. Sengtaheuanghoung, E. Thebault, B. Soulileuth and T. Pommier (2018). “Vicinal land use change strongly drives stream bacterial community in a tropical montane catchment.” FEMS microbiology ecology 94(11).

Le, H. T., E. Rochelle-Newall, O. Ribolzi, J. L. Janeau, S. Huon, K. Latsachack and T. Pommier (2020). “Land use strongly influences soil organic carbon and bacterial community export in runoff in tropical uplands.” Land Degradation & Development 31(1): 118-132.

Manivanh, L., A. Pierret, S. Rattanavong, O. Kounnavongsa, Y. Buisson, I. Elliott, J. L. Maeght, K. Xayyathip, J. Silisouk, M. Vongsouvath, R. Phetsouvanh, P. N. Newton, G. Lacombe, O. Ribolzi, E. Rochelle-Newall and D. A. B. Dance (2017). “Burkholderia pseudomallei in a lowland rice paddy: seasonal changes and influence of soil depth and physico-chemical properties.” Scientific Reports 7.

Mügler, C., O. Ribolzi, J.-L. Janeau, E. Rochelle-Newall, K. Latsachack, C. Thammahacksa, M. Viguier, E. Jardé, T. Henri-Des-Tureaux, O. Sengtaheuanghoung and C. Valentin (2019). “Experimental and modelling evidence of short-term effect of raindrop impact on hydraulic conductivity and overland flow intensity.” Journal of Hydrology 570: 401-410.

Sengtaheuanghoung O., Ribolzi O., Rochelle-Newall E. J., Boithias L., Evrard O., Henri-des-Tureaux T., Huon S., Janeau J.-L., Latsachack K., Lefèvre I., Mouche E., Robain H., de Rouw A., Xayyathip K., Silvera N., Sisouvanh P., Soulileuth B., Sounyafong P., Thammahacksa C., Viguier M., Lacombe G., Valentin C. and P. A. (2018). Interactions between land use, fluxes of water and sediments, and the spread of bacterial contaminants in the uplands of northern Lao PDR. Proceedings of the Global Symposium on Soil Pollution 2018, Rome, Italy, FAO.

Thi Phuong Quynh, L., D. Viet Nga, E. Rochelle-Newall, J. Garnier, X. Lu, G. Billen, D. Thi Thuy, H. Cuong Tu, H. Etcheber, N. Thi Mai Huong, N. Thi Bich Ngoc, N. Bich Thuy, L. Nhu Da and P. Quoc Long (2017). “Total organic carbon fluxes of the Red River system (Vietnam).” Earth Surface Processes and Landforms 42(9): 1329-1341.

Thi Thuy, D., H. Thi Thu Hang, N. Trung Kien, L. Thi Phuong Quynh, L. Nhu Da, D. Dinh Kim, X. Lu, B. Manh Ha, T. Quang Huy, D. Thi Hai Van, P. Thi Dau and E. Rochelle-Newall (2019). “Factors structuring phytoplankton community in a large tropical river: Case study in the Red River (Vietnam).” Limnologica 76: 82-93.