Amazigh Ouaksel | Milieux aquatiques | Young Scientist Award

Dr. Amazigh Ouaksel | Milieux aquatiques | Young Scientist Award

Dr. Amazigh Ouaksel, CEREGE – Aix Marseille université, France

Dr. Amazigh Ouaksel is a researcher in environmental chemistry, specializing in the risks associated with (nano)particle exposure in freshwater ecosystems. He holds a PhD (2020–2023) from Aix-Marseille University, focusing on the environmental impacts of tungsten-based nanomaterials. With research experience at CEREGE, France, and the University of Bejaia, Algeria, he has investigated nanoparticle aggregation, bio-lixiviation, and pollutant fate. He has presented at SETAC and Goldschmidt conferences and co-authored studies on nuclear dismantling exposure. Currently, he serves as an ATER at Aix-Marseille University. 🌍🔬📚

Publication Profile

Scopus

🎓 Educational Background

Dr. Amazigh Ouaksel holds a PhD in Environmental Chemistry (2020–2023) from Aix-Marseille University, where he focused on the environmental risks associated with the life cycle of energy technologies, particularly the exposure and impacts of tungsten-based (nano)particles. He earned a Master’s degree (2018–2020) in Waste Management and Polluted Sites (GSDP, MAEVA) from Aix-Marseille University, conducting research at CEREGE. Prior to that, he completed a Master’s in Mineral Resource Valorization (2015–2017) at the University of Bejaia, Algeria. His academic journey has equipped him with expertise in environmental risk assessment, nanoparticle behavior, and sustainable resource management. 🌍🔬📚

🔬 Research Experience

Dr. Amazigh Ouaksel has gained extensive research experience in environmental chemistry and nanoparticle behavior. In 2020, he conducted a six-month research internship at CEREGE, Aix-en-Provence, France, studying the fate of TiO₂ and CeO₂ nanoparticles in freshwater ecosystems. In 2019, during a three-month internship at the same institute, he analyzed the hetero-aggregation kinetics of metal oxide nanoparticles with clays. Earlier, in 2017, he undertook a three-month research project at the BBBS Laboratory, University of Bejaia, Algeria, optimizing the physico-chemical parameters of bioleaching for gold ore mineralization. His work contributes to understanding environmental risks and nanoparticle interactions. 🌍🧪🔎

📚 Scientific Training

Dr. Amazigh Ouaksel is actively engaged in scientific training and outreach. Since 2020, he has participated in the Fête de la Science in Aix-en-Provence, France, presenting on nanoparticle properties 🧪🌍. In 2022, he completed the Aster’X training on X-ray spectroscopy, tomography, and emission analysis (32.5 hours) 🔬📊. Since 2023, he has been leading interactive workshops, including Fresques du Sol, de l’Économie Circulaire, Ma Terre en 180 Minutes, and Ma Terre en Classe, fostering environmental awareness and education 🌱📖. His contributions bridge scientific research and public engagement, promoting sustainability and technological understanding.

🎓 Teaching Experience

Dr. Amazigh Ouaksel has extensive teaching experience in environmental chemistry and geosciences. From 2020 to 2023, he served as a Teaching Associate (CME) at IUT d’Aix-Marseille, delivering practical chemistry courses in general and organic chemistry 🧪📚. He also developed a professional simulation project on water analysis 💧🔬. Since 2023, as a Temporary Lecturer and Researcher (ATER) at Aix-Marseille University (OSU Pythéas), he has been teaching biogeochemical cycles, soil science, ecotoxicology, and water chemistry 🌍📊. His expertise spans data analysis, GIS, and environmental risk assessment, integrating fieldwork and laboratory experiments to enhance student learning.

🔬 Research Focus

Dr. Amazigh Ouaksel specializes in environmental chemistry and nanoparticle ecotoxicology 🌍🧪. His research focuses on the behavior, fate, and environmental risks of metallic and engineered nanoparticles (e.g., tungsten, titanium dioxide, and cerium dioxide) in freshwater ecosystems 💧⚛️. He investigates nanoparticle aggregation, mobility, bioavailability, and toxicity in aquatic environments, assessing their impact on benthic organisms and water quality 🦠🦐. His work also contributes to nuclear decommissioning impact studies and sustainable waste management. His expertise spans biogeochemical cycles, soil-water interactions, and environmental risk assessment, advancing knowledge in pollution mitigation and ecosystem safety 🌱.

Publications Top Notes

1️⃣ Ouaksel A., Vidal V., Proux O., Pailles C., Rose J., Auffan M. (2023) – Coupling High-Energy Resolution Fluorescence Detected X-ray Absorption Spectroscopy with Microfluidic Cells for in Situ Monitoring of Tungsten Nanoparticles Redox Transformation. ACS Earth and Space Chemistry.

2️⃣ Ouaksel A., Carboni A., Slomberg D., Vidal V., Proux O., Santella C., Brousset L., Angeletti B., Thiéry A., Rose J., Auffan M. (2025) – Behavior and fate of ITER-like tungsten nanoparticles potentially released into freshwater ecosystems during tokamak reactor operation and maintenance. Journal of Hazardous Materials.

3️⃣ Slomberg D., Auffan M., Payet M., Carboni A., Ouaksel A., Brousset L., Angeletti B., Thiéry A., Grisolia C., Rose J. (2023) – Tritiated stainless steel (nano)particle release following a nuclear dismantling incident scenario: Significant exposure of freshwater ecosystem benthic zone. Journal of Hazardous Materials.

F. Patricio Ojeda | Marine ecology | Best Researcher Award

Prof. Dr. F. Patricio Ojeda | Marine ecology | Best Researcher Award

Faculty of Biological Sciences, Pont. Universidad Católica de Chile, Chile

Federico Patricio Ojeda Rossi is a distinguished Chilean marine ecologist and a Professor Titular at the Faculty of Biological Sciences at the Pontificia Universidad Católica de Chile . He earned his Licentiate degree in Biology from the University of Chile 🏫 (1973-1981) and later pursued his Ph.D. in Zoology at the University of Maine 🇺🇸 (1983-1987). His career is marked by his significant contributions to the study of marine community ecology and eco-physiology of coastal fish . Throughout his tenure at the university, he has dedicated himself to advancing research in marine ecosystems, focusing on fish population dynamics, coastal recruitment processes, and larval transport mechanisms .

Publication Profile

ORCID

Education:

Federico’s academic journey began with his studies in Biology at the University of Chile, where he earned his Licentiate in Biology in 1981. He then moved to the University of Maine in the USA, obtaining his Ph.D. in Zoology in 1987, where his dissertation explored rocky subtidal community structures 🧠.

Experience:

Professor Ojeda Rossi has held several academic positions at the Pontificia Universidad Católica de Chile, starting as an Auxiliary Professor in 1988 and advancing to Full Professor in 2004 . His research has primarily focused on marine ecology, especially fish species in Chilean coastal environments .

Awards and Honors:

Federico’s work has been recognized with prestigious awards, including the Presidential Scholarship and the University Research Fellowship from the University of Maine . His significant contributions to marine science have earned him respect and admiration within the scientific community.

Research Focus:

Professor Ojeda Rossi’s research is primarily centered on the ecology and eco-physiology of coastal fish , with particular focus on long-term studies of population dynamics, recruitment phenomena, and larval distribution in the Chilean coast . His work is essential for understanding the effects of climate events like El Niño (ENSO) on marine life .

Conclusion:

Federico Patricio Ojeda Rossi has made significant strides in marine biology, with decades of research dedicated to understanding the complex dynamics of coastal ecosystems. His work continues to influence the study of marine communities and fish eco-physiology worldwide 🌎.

Publications:

Morfometría y nicho trófico de Coelorhynchus patagoniae (Pisces: Macrouridae). Boletín del Museo Nacional de Historia Natural, Santiago, 35, 99-104. Link

Nuevos registros para la ictiofauna de Arica, Chile. Noticiero Mensual del Museo Nacional de Historia Natural, Santiago, 22(261), 7-9. Link

Apterygopectus avilesi nuevo género y especie de lenguado para aguas australes chilenas (Pisces: Pleuronectiformes). Noticiero Mensual del Museo Nacional de Historia Natural, Santiago, 23(267), 3-10. Link

Proporciones corporales y utilización del hábitat en doce especies de Liolaemus de Chile central (Lacertilia: Iguanidae). Anales del Museo de Historia Natural de Valparaiso, 12, 59-68. Link

Utilización diferencial de recursos alimenticios por dos poblaciones simpátricas de Scomber japonicus peruanus y Sarda sarda chiliensis en el norte de Chile (Pisces: Teleostei). Medio Ambiente, 4, 19-23. Link

Trophic ecology of the clingfish Gobiesox marmoratus (Gobiesocidae): experimental evaluation of constraints to foraging behaviour. Marine Biology Research, 2025-01-02. Link 🔗

Presettlement schooling behaviour of a rocky fish in a shallow area. Is it related to local environmental conditions? Scientia Marina, 2020-09-04. Link 🔗