Marine laboratories in the Caribbean, with the support of the IAEA, are working to understand the critical link between healthy sea life and sedimentation. Sedimentation, the process of particulate matter settling at the bottom of bodies of water, can have both positive and negative impacts on marine ecosystems. While some level of sedimentation is natural and supports certain organisms, excessive sedimentation, often caused by human activities, can smother coral reefs and other vital habitats.
Using nuclear and isotopic techniques, scientists are able to trace the sources and pathways of sediment, allowing them to pinpoint the causes of increased sedimentation. These techniques provide crucial insights into how land-based activities, such as deforestation and agriculture, contribute to the problem. By analysing the isotopic composition of sediment samples, researchers can identify their origins and track their movement through the marine environment.
This research is essential for developing effective strategies to mitigate the negative impacts of sedimentation and protect the region’s valuable marine resources. The findings are informing policy decisions aimed at reducing land degradation and promoting sustainable coastal management practices. By understanding the complex interplay between sedimentation and marine life, the IAEA and its partner laboratories are helping to ensure the long-term health and resilience of Caribbean ecosystems.