ABOUT ME

I'm a young researcher interested in aquatic ecosystems monitoring and fish species conservation. I studied marine sciences during my Bachelor and Master degrees then my PhD and postdoc works were freshwater ecosystems centered.  For a few years, I work in close collaboration with environmental managers to apply my research work to environmental monitoring, population dynamics and conservation biology.

RESEARCH & EDUCATION

RESEARCH INTERESTS

Population dynamics and conservation biology

Funded by the French National Agency for Water and Aquatic Environment (ONEMA), we assess abundance, biomass and fish length trends of most common fish species in France over the last 22 years. Our work aims at detecting declining species or life-traits related to species declines to improve river conservation and management.

Freshwater ecology; Bayesian analysis ; fish life history traits; anthropogenic pressures

2014 - January 2016 : Postdoctorate

Centre d'Ecologie Fonctionnelle et Evolutive (CEFE)

UMR 5175 EPHE/CNRS, France

 

Time trends assessment of fish populations in French rivers, relationships between trends, species life traits and anthropogenic pressures.

 

Supervision: Dr. Aurélien Besnard

2009 - 2013 : Ph.D degree

Laboratoire d'Ecologie des Hydrosystèmes Naturels et Anthropisés (LEHNA),

UMR 5023 INRA, USC LEHNA, ENTPE, France

Institut National de l’Environnement Industriel et des Risques (INERIS), Unité d’écotoxicologie in vitro et in vivo (ECOT), France

 

A biomarker of genotoxicity in three-spined stickleback (Gasterosteus aculeatus): application to environmental monitoring and predictive value in Ecotoxicology

 

Supervision: Dr. Alain Devaux and Dr. Wilfried Sanchez

 

Environmental monitoring, ecological risks assessment and reproductive toxicology

In the European Water Framework Directive context which aims at reaching the good chemical status of European water bodies, we investigated a battery of biomarkers in a fish species to assess ecological risks of river contamination for fish populations. We focused our work on a genotoxicity biomarker and demonstrated the relationship between fish parental exposure to genotoxicants and detrimental effects transmitted to their offspring which could lead to long-term population disturbances.

Comet assay and other biochemical biomarkers; Field and laboratory experiments; Freshwater ecotoxicology

2006 - 2008 : Master degree in Marine biology at the European Institute of Marine Studies (IUEM; Brest, France)

 

Research projects:

Insular Research Centre and Environment Observatory (CRIOBE-CBETM); CNRS-EPHE-UPVD, Moorea, French Polynesia (8 months)

Larval colonization of crustacea decapoda and stomatopoda in Rangiroa atoll (French Polynesia).

Supervision: Dr. David Lechini and Christophe Brié

 

Ecophysiological Adaptation and Ontogenesis, UMR 5119, University of Montpellier II, France (3 months).

Description of Dicentrarchus labrax embryo-larval development  

Supervision: Dr. Patricia Cucchi

 

Marine Sciences and Coral reef species ecology

Thanks to my master degree and my research projects in marine biology, I get in-depth knowledge in marine and coastal environmental sciences.

Objectives of my research project in French Polynesia were the identification and description of Crustacea species captured as post-larvae during coral reef post-larval colonization. We aimed at understand reef colonization patterns linked to environmental factors (lunar cycle) to apply our scientific finding to aquaculture. The final goal of this work was to capture valuable Crustacea species before early life stage mortality to develop aquaculture projects and thus, to protect natural adult fisheries.

My study on the marine fish Dicentrarchus labrax embryo-larval development aims at describing key stages during early life stage development. 

Marine sciences and aquaculture

Ecotoxicology, ecology and conservation biology

Master courses focused on ecology and conservation biology gave me a scientific background and awareness in conservation biology I nowadays use working in collaboration with environmental managers.

My research project trained me to aquatic ecotoxicology and genotoxicity biomarkers. We also developed the assessment of hydrolase epoxide activity as a new biomarker of fish exposure to PAH.

Genotoxicity biomarkers and biomarker development

2008 - 2009 : Master degree in Environment and Biodiversity management at the Ecole Pratique des Hautes Etudes (EPHE ; Paris/Sorbonne, France)

 

Research project:

At the French Research Institute for Exploitation of the Sea (IFREMER), Nantes, France (9 months).

 

Impact of polycyclic aromatic hydrocarbons (PAH) on enzymatic activity and DNA damages in Solea solea

 

Supervision: Dr. Farida Akcha

 

 
 
 

fish population dynamic, Ecological risk induced by human driven environmental changes and sediment management

We assess the impact of hydrological pressures and landscape use (urban and agricultural activities) on fish population dynamics as well as the impacts of dredging activities on fish species

 

Data Analysis; Hydrological pressures, population dynamics; Biomarkers; Ecophysiology

 

February 2016 – 2019: Postdoctorate

HEPIA,  University of Applied Sciences Western Switzerland

Ecology and engineering of aquatic ecosystems group, Geneve, Switzerland.

 

Impact of hydrological pressures and sediment dredging on fish species

 

Supervision:  Pr. Cattanéo

 

  • RG
  • RG

© 2015 by Raphael Santos