Tropical Rainforest
![Picture](/uploads/3/0/2/4/30249603/7105847.jpg?438)
One of two major land biomes found in the National Park of American Samoa is the tropical rainforest. Only 6% of the Earth’s total land surface are tropical rainforests. Tropical rainforest climates are very warm and have an average annual temperature of greater than 20 degrees celsius. Plant growth is very favorable because of very little seasonal variation in temperature and day length. The tropical rainforest temperatures range from 20 to 25 degrees celsius while having more than 250 centimeters of annual rainfall. Latitude is the main climate control of the tropical rainforest found here in the American Samoa. The tropical rainforest is found between 10° North and 10° South latitude with elevations below 3,000 feet. There are three major, disjunct formations: African (Zaire Basin with an outlier in West Africa; also eastern Madagascar), Indo-Malaysian (west coast of India, Assam, southeast Asia, New Guinea and Queensland, Australia), and Neotropical (Amazonia into Central America). The National Park of American Samoa is an Indo-Malaysian tropical rainforest.
Marine Ocean
![Picture](/uploads/3/0/2/4/30249603/2072803.jpg?456)
The marine ocean is the largest ecosystem on Earth. Oceans are very large bodies of water that dominate the Earth’s surface. The ocean regions are separated into separate zones called pelagic, intertidal, benthic, and abyssal. For which all four zones contain a great diversity of species. The pelagic zone includes waters further from the land, the intertidal zone is where the ocean meets the land, the benthic zone is the area below the pelagic zone, and the abyssal zone is the deepest parts of the ocean. Coral reefs are widely distributed in warm shallow waters. They can be found as barriers along continents, fringing islands, and atolls.