Ocean Resources

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Ocean Resources
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• Fishing Shipping Oxygen Production
• Ocean Resources
• Tourism Climate Buffer Mining

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Fishing

• Fish supply about 16 of the worlds protein.
• Methods nets, trawlers, longlining,
  gillnetting, diving

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Fishing

• Gillnetting
• Longlining
• Trawling

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Fishing

• 60 of fish are used to feed people
• 40 are used food for fish on fish farms and
  other fish in captivity and fish oil

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Fishing Our Impact

• Over fishing we have caught too many fish
• We need to determine the carrying capacity of
  the ocean how many of each type of fish should
  there be?
• We need to develop sustainable fishing practices
  fisheries are limited in how many fish and what
  size of fish they can catch
• Habitat destruction
• Pollution

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Shipping

• moving cargo with ships between seaports
• Ships used include
• Tankers
• Container ships
• Cable layers
• Ferries
• Car carriers
• Barges

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Shipping

• Should be low impact but
• Accidents happen
• Pollution from ships air and water
• Organisms are carried to new habitats in ballast
  water and introduced into new habitats
• Ships can hit animals

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Tourism

• Provides a great deal of income world wide in
  the use 478 billion
• Problems
• Construction of resorts destroys habitat
• Pollution (sewage)
• Activities destroy habitats
• Overexploitation of local seafood

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Mining

• Provides diamonds, gold, silver, and manganese
• Destroys ecosystems sediments are dredged up,
  killing animals living in it and interferes with
  photoplankton

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Climate Buffer

• The ocean holds and circulates water and heat.
• The ocean and atmosphere interact to produce
  weather the air gets heat and moisture from the
  oceans
• Air temperatures worldwide are regulated by the
  circulation of heat by the oceans

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Oxygen Production

• Phytoplankton provide as much as 90 of the
  worlds oxygen
• Some is dissolved into the ocean water
• Some goes into the atmosphere

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Human impact

• How_the_Actions_of_Humans_Threaten_Our_Oceans.asf