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Activity 6: Producers and Consumers Get Started What role do phytoplankton and zooplankton play in the sustainability of the ecosystem shown in the food web on the next slide? Write a response in your science notebook to:
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Activity 6Producers and Consumers
Activity 6: Producers and ConsumersActivity 6: Producers and Consumers
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Activity 6: Producers and Consumers
Get Started
What role do phytoplankton and zooplankton play in the sustainability of the ecosystem shown in the food web on the next slide?
Write a response in your science notebook to:
Activity 6: Producers and ConsumersActivity 6: Producers and Consumers
Get Started
Activity 6: Producers and Consumers
Introduction
What do you already know about the following statement:◦Phytoplankton are producers.◦ Zooplankton are consumers
Read the introduction
Activity 6: Producers and Consumers
Introduction
Which organisms in the figure do you think are phytoplankton? Zooplankton?
What evidence do you have to support your answer?
Look at the figure in your book above Part C.
Activity 6: Producers and ConsumersActivity 6: Producers and Consumers
How do plankton populations affect the sustainability of a fishery?
Challenge
Activity 6: Producers and Consumers
Procedure
Always start observing a slide on the lowest magnification.
Be sure to label your drawings, including the magnification.
Parts A and B
Activity 6: Producers and Consumers
Procedure
Pay close attention to units as you perform your calculations.
Part C
Activity 6: Producers and Consumers
Follow Up
How might changes in the amount of plankton in the ocean affect the ocean’s ability to provide a sustainable source of food for the world’s human population? Explain.
Analysis 4
Activity 6: Producers and ConsumersActivity 6: Producers and Consumers
Strict fishing limits were set on the Atlantic herring fishery in the 1970s and 1980s because the population had dropped to about 75,000 metric tons. There was alarm that the population was so small that it was not sustainable if unlimited fishing continued. By the early 1990s the population returned to historically normal levels, and the yearly catch limit now ranges from 80,000 to 124,000 metric tons to keep the fishery sustainable.
Analysis 5
Activity 6: Producers and ConsumersActivity 6: Producers and Consumers
A. If the scenario in Procedure Step 15 were to occur, would the Atlantic herring fishery still be sustainable? Explain what indicator(s) you would use to monitor this. Hint: The biomass of the Atlantic Herring can be found in Procedure Step 13.
B. What do you think would happen to the sustainability of the plankton population if this scenario occurred? Explain.
Analysis 5
Activity 6: Producers and ConsumersActivity 6: Producers and Consumers
How do plankton populations affect the sustainability of a fishery?
Revisit the Challenge
Activity 6: Producers and ConsumersActivity 6: Producers and Consumers
biodiversity consumers fishery organism phytoplankton plankton producers zooplankton
Key Vocabulary
