oceans and seas
DESCRIPTION
Oceans and Seas. Oceans: a belt of water circling Antarctica with 3 huge northward extensions- Pacific, Atlantic, and Indian. Climate and Continents. Plate tectonics drive the geographic regions of a continent such as river mouths and the size of the continental shelves. - PowerPoint PPT PresentationTRANSCRIPT
Oceans and Seas
Oceans: a belt of water circling Antarctica with 3 huge northward extensions- Pacific, Atlantic, and Indian
Climate and Continents
Waters stores and transport heat
Plate tectonics drive the geographic regions of a continent such as river mouths and the size of the continental shelves
Challenger Expedition1872 - 1875
Origin of Modern Oceanography
Collected data on:• Temperatures• Ocean chemistry• Currents• Marine life• Geology of the sea floor
Research vessel
3 Classes of Organisms
Plankton: drifters1. autotrophs2. heterotrophs
Nekton: swimmers
Benthos: bottom dwellers
Marginal Seas
Separate coastal zones from open waters.
Arctic Ocean
Smallest shallowest
Best Known Oceans
Inland Seas, Historic Shores
Strait- a narrow passage that connect two larger bodies of water.
Strait of Gibralter
Tethys Sea
• Caspian and Aral sea are the stranded remnants of the tethys sea.
• They are called endorheic because they lack a drainage outlet
• They are very salty
Famous Shores- Atlantic Ocean
Georges Bank- broad, shallow submarine plateau.
• Habitat for over 100 different species of fish.
• Lucrative fishing industry for the East coast.
Pacific Ocean- Western Seas
Pugent Sound- Washington- a large inlet from the Pacific Ocean- usually parallel with the coast.
Warm Ocean DesertsSargasso Sea
Underneath the sargassum- barren as a desert!
Northern Waters of the Indian Ocean
Mangrove forests support a large diversity of life.
Semi-Enclosed Marginal Seas
Cariaco Basin
Giant Squid
Data: 43 ft. long, may weigh as much as a ton. The inhabit the dark, deep regions of the oceans.
Line of LifeThe Indonesian
Archipelago has 1,700 islands. (W)
Galapagos Islands (E)
Galapagos Islands
Eastern Pacific Barrier
Southern Oscillation “ENSO”
A regularly occurring climate feature that affects weather around the world= changes in the temperature of the pacific waters.
Coral Reefs
Coral Reefs
Central Oceans: Pelagic realm
Living Relics
Unknown Oceans
Great Southern OceanWeddell Sea
Adaptations
Glycoprotein in the blood of certain fish protect them from freezing in these frigid waters.
Blood antifreeze