International Mixte Laboratory - EDIA

General topics

The major objectives of the Mixed International Laboratory "Evolution and domestication of the Amazonian Ichtyofauna" (LMI-EDIA) are:

  • To understand the evolutionary (speciation, dispersal, extinction, and adaptation) and ecological (life history traits, environmental variations) processes involved in the exceptional diversity of Amazonian fish species.
  • To provide the biological basis for improving fisheries management and conservation.
  • To contribute to sustainable aquaculture development of native fish species.
  • To develop a predictive approach about the impacts of natural and anthropogenic environmental changes on the diversity of Amazonian fish species.

During this second phase (2016-2020), the LMI EDIA will continue to develop an approach of integrative biology through the synergy of three research axis:

AXIS 1: Past, present and future dynamic of biodiversity.

AXIS 2: Variability of life history strategies between species and their populations.

AXIS 3: Biological basis and socio-economical approach for a sustainable aquaculture.

The LMI EDIA's research actions in natural environment are focused on i) the effects of past and present environmental factors on the structuration of Amazonian specific diversity, ii) the organization of fish communities and iii) the variation of species life history strategies in interaction with their genetic variability. The results of these researches contribute to studies aiming at predicting the effects of climate change and anthropogenic impacts on fish communities (loss of richness and functionality, genetic erosion). They also contribute to improving the biological knowledge of the main species of interest for aquaculture development.

The experimental researches (reproduction, larval rearing, nutrition, growth) of the LMI EDIA are focused on providing the biological basis for a sustainable aquaculture, but also on studying of the adaptive capabilities of species to face climate change and environmental perturbations. Therefore, they also contribute to feeding in the predictive models.

The core partnership of the LMI EDIA is now centered on a North-South-South cooperation axis between the IIAP in Peru, the UAGRM in Bolivia, and the IRD - UMR BOREA in France.

The LMI-EDIA also participates to the RIIA network activities, which foster multiple collaborations in all the scientific areas required for the development of the LMI’s research axis. As a first step action the LMI EDIA will contribute to strengthen already existing Masters programs at the UAGRM (Santa Cruz), which will constitute the foundation for a future doctoral program (PhD).


The Research Unit BOREA supported the following incentive project:

+ Axe transversal Communication chimique « Communication chimique et contrôle du comportement reproducteur chez Heterotis niloticus. Utilisation de la vitellogénine localisée dans le mucus pour faciliter le sexage des reproducteurs, pour permettre la détermination du stade de maturité des femelles et faciliter la formation de couples » (co-resp. Joël Henry, Eq2 Caen et Jésus Nuñez, Eq7 Bolivie) : 2016



Geographical distribution of the main partnership within the LMI-EDIA
Rives du Rio Negro en Amazonie. Photo IRD/L. Emperaire
Arahuana Photo J. Nunez
Aquaculture au Pérou. Etangs de pisiculture d'Arapaima, station de Quistococha. Photo IRD/J. Nunez
Paiche. Photo G. Davila C.