Water, Water, EverywhereThe Earth’s Oceans and Seas

Jamel ThomasEarth Science 203

Four oceans: Pacific, Atlantic, Indian, and Arctic

• Pacific is largest and deepest • 64, 186, 300 square miles• 12, 925 feet average depth

Fifth ocean delimited in 2000

• Southern Ocean north of Antarctica

Major bodies of Water

•Form in shallow, warm seas•Made of coral polyp’s skeletons

Grow on top of old skeletons

•Spend adult lives fixed to same spot•Coral diseases increasing dramatically past 10 years

Responding to onset of bacteria of bacteria, fungi, viruses

•Sunlit (down to 650 feet) Sea plants and many animals

•Twilight (down to 3, 300 feet Many different fish

•Sunless (down to 13, 100 feetAnimals feed on dead food from above

Ocean Zones