Marine Biogeochemistry and Ecosystems

Marine biogeochemistry is the study of the chemical, biological, and physical processes that control the distribution and cycling of elements and compounds in the marine environment. It involves understanding how living organisms interact with the physical and chemical properties of seawater and sediment to create complex biogeochemical cycles that impact global biogeochemical processes and climate.

Marine ecosystems are complex, interconnected systems that are affected by biogeochemical processes, such as nutrient cycling, carbon and oxygen exchange, and energy flow. These processes are vital for the functioning of marine ecosystems, as they support the growth and survival of primary producers such as phytoplankton and seaweed, which in turn provide food and habitat for a wide range of marine organisms.

Research in marine biogeochemistry and ecosystems includes understanding how these processes are impacted by human activities, such as pollution and climate change. For example, increasing levels of atmospheric carbon dioxide (CO2) are leading to ocean acidification, which can have significant impacts on the ability of marine organisms to build shells and skeletons. Climate change is also leading to changes in ocean temperatures and currents, which can impact the distribution and abundance of marine organisms and alter the functioning of marine ecosystems.

Efforts to manage and conserve marine ecosystems require an understanding of the complex interactions between biogeochemical processes, marine organisms, and the physical environment. This involves developing strategies to protect and restore marine ecosystems, as well as reducing the impacts of human activities on the marine environment. Research in marine biogeochemistry and ecosystems is helping to provide the knowledge and tools needed to develop effective management and conservation strategies, and to ensure the long-term sustainability of marine ecosystems and the services they provide.