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Why should we study Marine Science?

Why should we study Marine Science?. “How inappropriate to call this planet Earth, when clearly it is ocean.” Arthur Clark. If all that water was piled on top of the US, the US would be submerged under 88.2 miles of water. 71% of the Earth’s surface is covered by oceans.

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Why should we study Marine Science?

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  1. Why should we study Marine Science? “How inappropriate to call this planet Earth, when clearly it is ocean.”Arthur Clark

  2. If all that water was piled on top of the US, the US would be submerged under 88.2 miles of water 71% of the Earth’s surface is covered by oceans http://www.benthicorchid.com/Planet%20Earth.jpg

  3. Planet of Water • Average Depth = 3800m (~11,400ft) • Maximum Depth – 11,033 meters (36,201ft) • Mt Everest 8848m (26,544 ft)

  4. What is the world’s highest point? Hawaii 10,203 m (33,476 ft) from sea bed

  5. The Largest and Deepest Ocean • Pacific Ocean • Home of the Mariana Trench • Challenger Deep - Deepest part of the trench 11,033m • Average Depth -4,188m (13,740ft)

  6. Origin of chemical and hydrological cycles that create our atmosphere and climate. http://www.kidsgeo.com/images/earths-atmosphere.jpg

  7. Earth’s weather is generated by the ocean. http://www.katrina-hurricane.biz/images/katrina-hurricane-pic3.jpg

  8. The average depth of the ocean is 2 miles-all of which is habitable. http://www.imagequest3d.com/catalogue/deepsea/images/l043.jpg

  9. 36 Animal Phyla 34 live in the ocean 17 live on land 80% of known life forms are marine. “Wipe out all life on land and life would still exist in the ocean. Wipe out all life in the sea and nothing would be left on land.” Osha Gray Davidson

  10. Fish and other marine organisms have the potential to create life saving drugs. http://www.daviddarling.info/images/blue_blood.jpg

  11. The ocean floor contains some of the most important mineral, gas and oil deposits. http://images.google.com/imgres?imgurl=http://www.assioctg.com/images/oilcountryimages/oil_drilling_ocean_sunset.jpg&imgrefur

  12. HUGE CONTIBUTOR OF OXYGEN

  13. Alarming Trends

  14. 70% of fisheries are in trouble. http://images.google.com/imgres?imgurl=http://see-the sea.org/topics/commerce/OVERFISHINGfromPEW.

  15. 60% of the coral reefs are at medium to high risk. “The link between global warming and large-scale bleaching of corals, considered controversial only 10 to 15 years ago, is now universally accepted.” http://www.reeffutures.org/topics/bleach/images/whitecoral.jpg

  16. 50% of the world’s population lives within 50 miles of the coast http://pubs.usgs.gov/of/2004/1217/images/figures/high_density-lg.jpg

  17. 32 billion gallons of pollution enters the ocean everyday http://eprentice.sdsu.edu/J03CW/rutter/ocean/pollution_1.JPG http://www.ecofootage.com/tapes/water/VS38a.jpg http://www.culturechange.org/Moore-Trashed-PacificNov03a.jpg

  18. The ocean is on its way to becoming more acidic than it has been in the last 800,000 yrs http://www.dirnat.no/multimedia.ap?id=32407

  19. Challenges

  20. Global Climate Change http://science.hq.nasa.gov/oceans/images/CONVEYOR.jpg

  21. “The Arctic Ocean could be ice free in summer by 2050.” Arctic Climate Impact Assessment. 2004. Impacts of a Warming Arctic. Cambridge, UK: Cambridge University Press.

  22. “Global sea levels could rise by more than 20 feet with the loss of shelf ice in Greenland and Antarctica, devastating coastal areas worldwide.” Washington Post, "Debate on Climate Shifts to Issue of Irreparable Change," Juliet Eilperin, January 29, 2006, Page A1.

  23. Discovering life forms- we know less than 10% of what lives in the ocean http://images.google.com/imgres?imgurl=http://www.afsc.noaa.gov/abl/MarFish/coralscruise/aug3/080104dumbooctopus.jpg

  24. Shipping-50% of international trade is hazardous materials http://www.ibrrc.org/images/Treasure/penguins_oiled.jpg http://menlocampus.wr.usgs.gov/50years/accomplishments/images/PWS_tanker_oil_spill.jpg http://www.greenpeace.org/raw/image_full/international/photosvideos/photos/sea-otter-at-rehabilitation-ce-3.jpg

  25. NASA spent $820 million on missions to Mars to look for water Compared to the approximately $600 million spent on ocean research on our own planet. http://nssdc.gsfc.nasa.gov/image/spacecraft/viking_lander_model.jpg

  26. Opportunities • Pharmaceuticals • Energy • New materials (byssal threads) • Fresh water (the amount of which will be limited in the future) • Predicting climate • Biomimcry (regeneration)

  27. What is Marine Science? • The scientific study of ocean properties and all of its inhabitants

  28. Major Sub-disciplines • Marine Geology & Geophysics – Study of ocean floor, plate tectonics, etc • Physical Oceanography – study of waves, tides, currents, etc • Chemical Oceanography – study of salinity, pressure, water composition, etc • Marine Biology – Study of all life in the oceans • Marine Policy and Laws – Fishing regulations, pollution regulations

  29. Homework Assignment-due tomorrow • Write a response to our discussion.  • In your response, you may want to address the following questions-but don't feel limited to these questions: • Why do you want to study marine science? • Did you learn anything new during our discussion? Did anything surprise you? • What are you curious to learn more about?

  30. The Blue Planet

  31. The Earth – A Planet of Water~71% of the Earth’s surface are oceans (If all that water was piled on top of the US, the US would be submerged under 88.2 miles of water)

  32. Five oceans: • Atlantic –shallowest, greatest number of adjacent seas has the largest freshwater input (i.e. Amazon, Congo, Mississippi) • Pacific – largest, deepest • Indian – smallest, muddiest • Arctic – covers N. Pole, saltiest • Southern Ocean – coldest, most productive

  33. Planet of Water • Average Depth = 3800m (~11,400ft) • Maximum Depth – 11,033 meters (36,201ft) • Mt Everest 8848m (26,544 ft)

  34. The Largest and Deepest Ocean • Pacific Ocean • Home of the Mariana Trench • Challenger Deep • Deepest part of the trench 11,033m • What is the world’s highest point? • Hawaii 10,203 meters (33,476 ft) from sea bed

  35. The Vast Ocean • There is 300 times more space for life than land and freshwater combined • All known phyla originated in the sea and life on earth is believed to have begun in the ancient oceans • NASA scientists report “We know more about the backside of the moon than about the depths of the oceans”

  36. So why should we care living here in Charlotte? • Source of food valuable minerals • Vast highway for commerce

  37. Why Care? • Provided a place for both recreation and waste disposal

  38. Why Care? • Valuable source of energy (ex: tidal)

  39. Why Care? • Less Obvious Reasons • Harvesting fish that is then processed for livestock feed • Estimated that as much as 10% of human protein intake comes from the sea

  40. Less Obvious Reasons • Other biological products of the oceans are also commercially used. Ex: pearls taken from oysters are used in jewelry, shells and coral have been widely used as a source of building material • Ocean water is desalinated in areas to produce freshwater

  41. Less Obvious Reasons • Ocean water is processed to extract commercially valuable minerals such as salt, bromine and magnesium • Extensive deposits of petroleum-bearing sands have been

  42. Last but not Least HUGE CONTIBUTOR OF OXYGEN

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