Courses totalling 12 credits have to be chosen among:
| Code | Détails | Organisation | Théorie | Pratique | Autres | Crédits |
| OCEA0063-1
| Biology of Marine Mammals (anglais) | Q1 | | | | 6 |
| Part I : Ecology and ecotoxicology
| | 15 | - | - | |
| Part II : Pathology and necropsies
| | 15 | 10 | - | |
| OCEA0055-5
| Biogeochemical Cycles in the Ocean (anglais) | Q1 | | | | 6 |
| Biogeochemistry 1
| | 20 | - | - | |
| Biogeochemistry 2 (Advanced Marine Geochemistry)
| | 20 | - | - | |
| OCEA0082-1 | Carbon, nutrient, greenhouse gases dynamics in marine ecosystems and geological oceanography (anglais) | Q1 | | | | 6 |
| Carbon, nutrient, greenhouse gases dynamics in marine ecosystems
| | 20 | 5 | - | |
| Marine sediment geochemistry
| | 15 | 15 | - | |
| OCEA0229-1 | Mathematical analysis and modelling methods applied to the environment / Introduction to marine ecosystems modelling (anglais) | Q1 | | | | 6 |
| Introduction to marine ecosystems modelling
| | 15 | 15 | - | |
| Mathematical analysis and modelling methods applied to the environment
| | 20 | 20 | - | |
