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Water, Water; Everywhere The Earth’s Oceans and Seas. Jamel Thomas Earth Science 203. Major Bodies of Water. Four Oceans: Pacific, Atlantic, Indian, and Artic Pacific is largest and deepest 64,186,300 square miles 12,925 feet average depth Fifth ocean delimited in 2000
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Water, Water; EverywhereThe Earth’s Oceans and Seas Jamel Thomas Earth Science 203
Major Bodies of Water • Four Oceans: Pacific, Atlantic, Indian, and Artic • Pacific is largest and deepest • 64,186,300 square miles • 12,925 feet average depth • Fifth ocean delimited in 2000 • Southern ocean north of Antartica
Coral Reefs • Form in shallow, warm seas • Made of coral polyps’ skeletons • Grow on top of old skeletons • Spend adult lives affixed to the same spot • Coral diseases increasing dramatically past 10 years • Responding to onset of bacteria, fungi, viruses
Ocean Zones • Sunlit (down to 650 feet) • Sea plants and many animals • Twilight (down to 3,300 feet) • Many different fish • Sunless (down to 13,100 feet) • Animals feed on dead food from above