Essay On Coral Reefs

Coral Reefs Decaying All over the world coral reefs play an important part in our environment. Not only are the reefs colorful and beautiful to look at but the coral reefs house several different types of fish and other sea creatures. Coral reefs have started to decline over the years due to “climate change, El Nino events, overfishing, pollution and other pressures” (Newnham 1). A healthy coral reef can also collapse due to a natural disaster (Newnham 2). There can be several different reasons why a coral reef has started to decline or has been destroyed. Coral reefs “form the foundation of all atolls are composed of the skeletons of marine animals which have become fastened onto a rocky substrate in shallow warm water, rich in the calcium used for construction of the skeletons. Most often this attachment is to the skeletons of preceding

The reef is the is “also the largest structure on Earth made by living organisms” (Zimmermann). The Great Barrier Reef has many different types of reefs. Nearby Lizard Island, Great Barrier Reef Marine Park and Swain Reefs is a cresentic reef. A cresentic reef “shaped like crescents” (Zimmermann). The crescentic reefs are commonly found in the middle of the reef system. Bordering Cape York Peninsula, Princess Charlotte Bay and Cairns flat reefs can be found. Planar reefs which are the same as flat reefs can be found in the north and south parts Cape York Peninsula, Princess Charlotte Bay and Cairns. To the north of the Great Barrier Reef, the reef is twisty and narrow. When a reef is twisty and narrow, it is called a ribbon reef. The south of the Great Barrier Reef is a fringing reef. The south of the reef is very unusual, due to the fact the fringing reef is attached to the Whitsunday islands. Usually fringing reefs are not attached to any islands. Also, found all over the reefs are lagoonal reefs