Transcript 1.1-MB-HUMANIMPACT-Pollutionintheoceanx

Human Impact on Marine Life
Pollution in the Ocean
Warm Up
• What is pollution?
• In what ways do humans pollute the
Chesapeake Bay?
• In what ways can you stop pollution from
getting into the Bay?
• How does oil from the roads get into the Bay?
Independent Research
Take Cornell Notes over the following
topics:
• Page 541-555
– 22.1-Sewage Pollution
– 22.2-Toxic Chemicals
Independent Research: Sewage Pollution
Use Cornell Notes to answer the following:
22.1-Sewage Pollution
What is sewage?
What are pathogens? What harm can they cause?
What are fecal coliform bacteria? Are they harmful? How is there
prescience in water an indicator of harmful sewage pollution?
What waters have high bacteria counts?
What is raw sewage?
What is E Coli?
What type of cell is E Coli?
What is sewage treatment?
How are other bacteria used at treatment plants?
What is sludge?
What is done with sludge now?
What has happened to the coliform levels in New York City waters? (Use
graph)
Video: Pollution
Make a list of as many different types
of pollution that you see during the
movie.
• Human Impact on Marine Life-Pollution Video
Food Chain Basics
Why are decomposers (bacteria)
important?
• Watch the video to make sure you understand
the following:
– Autotrophs
– Heterotrophs
– Decomposers
E. Coli
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•
•
•
Bacteria cells are usually______________ (prokaryotic/eukaryotic).
Remember from your biology class!
E. Coli are prokaryotic (simple/unicellular) cells.
Prokaryotic Cells are SIMPLE.
–
–
–
–
They lack membrane bound organelles.
No nucleus
DNA floats around in the cytoplasm.
Cilia (hair like) or Flagella (tails-think sperm) are common in these cells to help
them move
Independent Research: DDT & PCBs
Use Cornell Notes to answer the
following:
22.2-Toxic Chemicals
Who is Rachel Carson?
What are toxic chemicals?
What is DDT? How was it used?
How did it effect Calirfornia brown pelican
How did the birds ingest DDT?
When was DDT banned? How has this effected the bird populations?
Is DDT banned worldwide?
What are PCBs? What are they used for?
What effect do PCBs have?
What is biological magnification?
How have Striped Bass been affected by PCBs?
DDT and FATTY TISSUE/BLUBBER
• Fatty tissue/blubber belongs to the _______________
category of macromolecules
(proteins/lipids/carbohydrates/nucleic acids).
• Remember from your biology class!
• Lipids are made of fatty acids.
• Energy is stored in lipids for long periods of time.
– For example, marine animals that live in cold waters will
store energy in their blubber to survive long cold winters.
– Toxins are also stored in fatty tissues.
– Fat takes a long time to burn off. This means that toxins in
fatty tissues can harm a body for a long time.
Lipids and Higher Level Thinking
• Which of the following would be harmed by
toxins such as DDT?
– A whale.
– A lean fish such as Tuna.
Independent Research: Mercury
Use Cornell Notes to answer the following:
What is Mercury? What is it used for?
What effect does Mercury have?
How does mercury get into humans?
Explain the findings in Japan with mercury levels.
Explain how mercury effects the nervous system
What is the Clean Water Act and when was it passed?
Biological Magnification and Food Chains
• Put the following in order on a food chain
–
–
–
–
Carnivore
Herbivore
Producer
Consumer
Use the picture to explain
bio magnification.
Fish Eating Human (top
carnivore)
Shark (carnivore)
Tile Fish (omnivore)
Zooplankton (herbivore)
Phytoplankton
(producer/decomposer)
Mercury and the Nervous System
• Which of following are part of the nervous
system?
A.
B.
C.
D.
Heart and blood vessels
Lungs and nose
Brain and spinal cord
Bones and cartilage
•Brain, spinal cord and nerves make up the nervous system.
•Remember! The nervous system controls your body’s
movements without you even knowing (heart
pumping/eyesight/breathing).
Independent Research:
Other metals, oil spills and radioactive wastes
Use Cornell Notes to answer the following:
What other heavy metals affect marine life and humans?
Name 3 big oil spills involving crude oil ships
What is nonpoint source pollution?
How can bacteria help with oil spills?
What are radioactive reactions used for (page 554)?
Before 1972, how was radioactive waste handled?
How does radioactive waste like strontium-90 affect humans?
What is thermal pollution?
How does thermal pollution effect marine life?
Oil Pollution-Oil Eating Bacteria
• Oil spill clean up video
Radioactive Wastes
• Radioactive Waste video
Additional Text Assignments Follow
Striped Bass in the Hudson River
• Read Swimming with the Fishes on page 549.
• Answer questions 1-3
Extra Student Work
• Section Review 22.1 & 22.2