The extent to which the microbial carbon pump contributes to the generation of marine refractory dissolved organic matter (RDOM) remains a matter of debate. Here, the authors report results from a 3-year mesocosm study, and show that most of the microbial DOM is different from RDOM in the ocean.
- Helena Osterholz
- Jutta Niggemann
- Thorsten Dittmar
