Marine ecology is the study of the relationships between organisms and their marine environment. It encompasses various ecosystems, such as coral reefs, mangroves, and open oceans, focusing on how species interact with each other and their surroundings. Understanding these interactions is crucial for conservation efforts and maintaining biodiversity. The health of marine ecosystems is vital for the planet, as they provide essential services like oxygen production and carbon sequestration. Threats such as pollution, climate change, and overfishing can disrupt these delicate systems, making marine ecology an important field for sustainable management and protection of ocean life.