From single celled algea to the very large Minke whale. All together, there are 1,500 species of marine fish, 360 species of hard corals, 600 species of echinoderms (starfish, sea urchins, sea cucumbers), and 500 species of seaweed. Coral is made of small organisms called Coral Polyps. Read More. Holding the world's largest collection of corals (more than 400 different kinds), coral sponges, molluscs, rays, dolphins, over 1500 species of tropical fish, more than 200 types of birds, around 20 types of reptiles including sea turtles and giant clams over 120 years old. The Great Barrier Reef has 1/3 of the worlds soft coral. Green Turtle. Examples include:-Zooxanthellae lives inside the polyps in coral. Animals. If the Great Barrier Reef has one predator it would be the Crown of Thorns Starfish. Corals provide essential habitat structure and energy in coral reef systems, facilitating the existence of numerous reef associated species. Plants: Animals: Sea Grasses Shoal Grass and Turtle Grass are two types of plants that live in the coral reef. Shoal grass is the most grass-like looking out of the other types of sea grass. Indo-Pacific coral reefs are home to over 600 species of hard corals (also called stony corals or scleractinian corals), and 4000-5000 species of reef fishes (Veron 2000, Lieske and Myers 2001). In fact, there are over 2,800 plant species in the World Heritage-listed area, 700 of which are endemic to the Wet Tropics, meaning they can’t be found anywhere else in the world. Manta Ray. There are 400 different species of coral in the Great Barrier Reef. In order to collect the sunlight needed for photosynthesis, plants in coral reefs have larger cells. The Great Barrier Reef is home to thousands of plants and animals that all contribute to its rich diversity. Plants have also created many symbiotic relationships with other animals in order to survive. Hawaii’s Maro Coral Reef Credit: ... “Lembeh Strait is a fantastic place to find species that have evolved to resemble other animals or plants to survive. The blades of Shoal grass are stiff and flattened. A study looking at surgeonfish (Ctenochaetus striatus) on the Lizard Island reef, in the northern end of the Great Barrier Reef, found these fish ate somewhere between 8 and 66 grams of sediment per fish per day. Like the parrotfish, it is essential in the process of sediment removal. The surgeonfish is another important reef-dweller. Because of the lens I was using, I had to get really close to this crab. The Great Barrier Reef is the largest coral reef in the world. It is made up of a collection of over 2,900 individual coral reefs and 600 idyllic islands that stretch for 2,300 km along the north-eastern coast of Queensland, Australia in the Coral Sea in the Pacific Ocean. Tiny algae (zooxanthellae) uses photosynthesis to give energy to the coral when the coral Red algae is very important. ... and they have done great damage on Australia's Great Barrier Reef. The Great Barrier Reef is home to some of the most unique creatures on the planet. Learn about new Great Barrier Reef experiences, the latest holiday package deals and exclusive offers. Unlike algae, seaweed are natural flowering plants like normal land plants. With the largest brain to body ratio of any living fish, these gentle giants are under threat. There are Hard Coral Polyps and Soft Coral Polyps. Animals: The animals that live in the Great Barrier Reef vary greatly. In terms of size, it is as big as Germany or Japan and half as big as Texas. They form crusts that cement together the coral and make up the framework of the reef. These threatened species need your help. Bizarre and Beautiful Coral Reef Animals.