Biodiversity Marine Ecosystems Coral Reefs Ocean Ecosystems Climate Change Freshwater Ecosystems Impact of Noise Pollution Environmental Impact Marine Conservation Impact Studies Climate Change Effects Hydrothermal Vents Deep Sea Ecosystems Seabed Health Environmental Changes Impact of Pollution Climate Impact Antarctic Ecosystems Deep-Sea Mining Biodiversity Conservation Species Diversity Species Behavior Submarine Ecosystems Turtle Ecology Reef Ecology Marine Heatwaves Marine Mammals Ocean Health Marine Habitats Research Vessels Climate Effects Artificial Reefs Plankton Nutrient Cycling