Marine systems refer to the complex networks of living organisms and their physical environment in oceans, seas, and coastal areas. These systems include various habitats such as coral reefs, mangroves, and open ocean, each supporting diverse species of plants and animals. The interactions among these organisms, along with factors like water temperature, salinity, and currents, play a crucial role in maintaining ecological balance. Human activities, such as fishing, pollution, and climate change, can significantly impact marine systems. Overfishing threatens fish populations, while plastic waste and chemicals can harm marine life. Protecting marine systems is essential for sustaining biodiversity and ensuring the health of our planet's oceans, which are vital for global climate regulation and food security.