Coral reef a protective area, or it may lie between the reef and the shore, and in this case is a flat, rocky area. Fish tend to prefer it when it is present. The reef lagoon is an entirely enclosed region, which creates an area less affected by wave action and often contains small reef patches. However, the "topography of coral reefs is constantly changing. Each reef is made up of irregular patches of algae, sessile invertebrates, and bare rock and sand. The size, shape and relative abundance of these patches changes from year to year in response to the various factors
Coral Reef Adventure Coral Reef Adventure Coral Reef Adventure is a 70mm American documentary film released in 2003 to IMAX theaters. It is narrated by actor Liam Neeson, and directed by Greg MacGillivray. Embarking on a 10-month expedition through the islands of the South Pacific, husband and wife underwater photography-duo Michele and Howard Hall explore the declining reefs and failing health of the world's oceans. From Australia's Great Barrier Reef, to a friend's coral reef-sustained village in Fiji, the diving expeditions show a range of coral reefs, from flourishing ones filled with unusual and exotic inhabitants, to vast stretches of bleached coral decline