The symposium will be split in four sessions, each organized around a specific topic and starting with a plenary lecture by an invited keynote speakers (35 minutes for presentation, 10 minutes for questions). These topics are:

1. General theory/ formal aspects of DEB theory. This topic will deal with the chemical and physical (or thermodynamical) basis of DEB theory. Future developments might be indicated. If needed contributions can be mathematically oriented.

2. Perturbation studies/ (eco)toxity. Focus is on effects of disturbances on budgets, especially by toxic compounds; toxicokinetics, metabolic transformations.

3. Eco-physiology: the individual level. Here applications of DEB theory to individual species (especially fish, bivalves, crustaceans) are discussed. Issues of interest are, for example, estimation of parameter values, tests of theory against data, interspecies comparisons.

4. Population, ecosystem and evolutionary aspects. For this topic one may think of issues such as the coupling of structure and functioning of ecosystems, stoichiometric constraints on production, phyto- zooplankton interactions, syntrophy, etc. Contributions on adaptive dynamics, evolution of homeostasis, metabolic pathways, origins of life, development and maintenance of biodiversity are welcomed.

Oral communications by the symposium participants will last 20 minutes (15 minutes for the talk, 5 minutes for questions).

Concerning the symposium audio-visual modalities, participants giving Power Point presentations should bring their presentations on USB keys or CDROMs (preferably two different supports to avoid any incompatibilities). The presentation should be loaded onto the hard drive of the dedicated PC connected to the video-projector well before the beginning of the session, i.e. prior to the previous session.