Marine ecology is a branch of biology that focuses on understanding the relationships between organisms and their habitats in the marine environment. It helps us study how the different organisms in the ocean, such as fish, corals, and seaweeds, interact with each other and the physical and chemical factors of their surroundings. Marine ecologists also investigate how human activities impact marine ecosystems and work towards conserving the biodiversity and health of oceanic habitats.

By studying marine ecology, scientists gain insight into how marine species adapt to their environments, how they find food, reproduce, and survive in sometimes challenging conditions. They also examine how changes in temperature, salinity, pollution, and other factors affect the delicate balance of marine ecosystems. This knowledge is crucial for developing effective strategies to protect and manage ocean resources sustainably.