Strand 4 : Understanding complex interactions between animal, environment, pathogens and health for risk assessment

The objective of this 4th axis is to better identify the health situation of the shells, finding new symptoms that could help identifying earlier the sick animals. This axis will also explore the impact on environmental conditions on the development of diseases. Models of dissemination and transmission of diseases will be established in an attempt to control the diseases.

Marine bivalves are typically reared in estuarine environments frequently subjected to fluctuations of environmental factors such as temperature, salinity and pollution. The effects of environmental parameters and different stressors will be explored in this working group and associated alterations on pathogens and host metabolism will be investigated. This will enable a better understanding of host/pathogen/environment interactions. There will also be a focus on the development of bivalve pathogen dissemination and disease transmission models.


  • Health status and modification of animal behaviour during infection
  • Effects of environmental parameters and stressors on bivalve diseases
  • Pathogen dissemination and disease transmission modelling in marine ecosystems

Main expected deliverables:

  • Construction of pathogen dissemination and disease transmission models
  • Identification of health bioindicators
  • Synthesis of the impact of environmental factors on pathogen evolution