1 / 11

Marine Pollution

Marine Pollution. Objectives: Explain how marine debris enters the ocean ecosystem and the impact it has on the marine ecosystem Explain how oil enters the ocean and its impact on marine life. List possible oil clean-up methods. Discuss the concept of Gaia and global ecology.

ciara-crosby
Télécharger la présentation

Marine Pollution

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Marine Pollution Objectives: Explain how marine debris enters the ocean ecosystem and the impact it has on the marine ecosystem Explain how oil enters the ocean and its impact on marine life. List possible oil clean-up methods. Discuss the concept of Gaia and global ecology.

  2. Sources of Human contamination 1. Agricultural • Fertilizers • Pesticides • Herbicides • Animal wastes from farms and ranches

  3. 2. Domestic • Chemicals • Trash and other debris • Sewage

  4. 3. Industrial • Chemicals from mines, refineries, and manufacturing plants • Heavy metals • Radioactive wastes

  5. 4. Vehicles (automobiles and boats) • Fuel emissions • Oil spills • Trash • Sewage

  6. Impact of Chemicals in the Ocean 1. biomagnification –higher concentrations of chemicals as you move up the food chain

  7. 2. Eutrophication – excess nutrients enter the water, cause algal blooms which leads to oxygen depletion

  8. 3. Debris harm/kill marine life.

  9. Oil Source of millions of gallons of oil

  10. Oil clean-up methods • mechanical clean-up (mop up)- absorbing oil • fire • high pressure washing • bacterial break-down (bioremediation)

  11. Gaia Hypothesis • idea that our planet functions as a single organism

More Related