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Aquatic Food Webs. Connected to and affected by terrestrial food webs Examples? Humans, birds.

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aquatic food webs
Aquatic Food Webs
  • Connected to and affected by terrestrial food webs
  • Examples?
  • Humans, birds
slide2

A Million to OneMarine food webs are usually longer than terrestrial food webs. Scientists estimate that if there are a million producers (algae, phytoplankton, and sea grass) in a food web, there may only be 10,000 herbivores. Such a food web may support 100 secondary consumers, such as tuna. All these organisms support only one apex predator, such as a person.

aquatic food webs1
Aquatic Food Webs
  • Begin with…?
  • Microbes – phyto and zoo –plankton
  • These are the most abundant life form in the ocean
  • Produce over half the earth’s O2
aquatic food webs2
Aquatic Food Webs
  • Productivity is greatest in euphotic zone – why?
  • Primary Consumers – copepods, shrimp, Larval fish and jellyfish
marine resources
Marine Resources
  • They are finite and limited
  • Human use of resources has increased
marine resources1
Marine Resources
  • What does the ocean provide us…?
  • Transportation, food, minerals (manganese, salt, sand),recreation, oil
marine resources2
Marine Resources
  • The air we breathe
  • The food on your plate - algae and kelp are used in making peanut butter soymilk and frozen foods.
  • The items in your medicine cabinet shampoos, cosmetics, medicines
  • Jobs and the economy. One in six jobs in the United States is marine related
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