Coastal ecosystems are vibrant areas where land meets the ocean, including habitats like mangroves, salt marshes, and coral reefs. These ecosystems are crucial for biodiversity, providing shelter and food for a variety of species, including fish, birds, and invertebrates. Additionally, coastal ecosystems play a vital role in protecting shorelines from erosion and filtering pollutants from the water. They also offer recreational opportunities and support local economies through activities like fishing and tourism, making their conservation essential for both environmental health and human well-being.