World Oceans Day is celebrated on 8 June. The theme for World Oceans Day 2020 is “Innovation for a Sustainable Ocean.” The Marine Environments is divided up into three main ecosystems; Oceans, Coral Reefs and Estuaries.
There are the five major oceans that cover the world including the Atlantic, Pacific, Indian, Arctic, and Southern Oceans. Coral reefs are small in size when compared to the oceans, but around 25% of marine species live in the coral reefs ecosystems. Estuaries are areas where rivers and streams flow into the ocean. This area where freshwater and saltwater meets, creates an ecosystem diverse plant and animal life often called the ‘nurseries of the sea”.
Our oceans make up 71% of the earth’s surface and they contain the greatest diversity of life on Earth. Habitats range from the freezing polar regions to the warm waters of the coral reefs, deep sea hydrothermal vents to shallow seagrass beds and beautiful sponge gardens to giant kelp forests, marine organisms are found everywhere.