Ocean ArtUp

Bringing the "Deserts" of the Oceans Back to Life

Ocean deserts are near-surface water layers in our world's oceans that have sufficient light irradiation and thus warm temperatures, but only low biological productivity due to nutrient depletion. What if we could transform these areas into thriving and productive ecosystems? The Ocean ArtUp project is addressing this question by investigating whether artificial upwelling devices in the ocean that pump nutrient-rich deep water to the surface can increase biological productivity. This approach could not only have a positive impact on biodiversity in the upper layers, but also help sequester additional CO2 from the atmosphere.

DNA Metabarcoding Helps Analyze Potential Consequences

To achieve this ambitious goal, it is critical to understand the plankton communities that will be established in the emerging ecosystems. This is where DNA metabarcoding comes into play. By analyzing water and cell samples, not only can the exact composition of plankton communities be determined, but their evolution over time can also be recorded. This allows precise predictions to be made about how the newly formed ecosystems will develop. DNA metabarcoding allows the plankton communities to be analyzed down to the smallest detail, thus avoiding possible undesirable effects such as toxic algal blooms or excessive jellyfish growth. By knowing the exact species composition, we can ensure that the emerging ecosystems provide suitable food sources for ecologically important species such as fish. When combined with other measurements, metabarcoding allows us to make accurate predictions about how the oceans might be transformed into thriving and productive systems. Through long-term monitoring, we can track the evolution of plankton communities and ensure that set goals are met.