Figure Set 3: How Shading Affects Photosynthetic/ Respiratory Balance in Corals

Purpose: Purpose: Students figure out that corals contain algae (zooxanthellae) and therefore are photosynthesizing organisms. With this knowledge, they can deduce what happens when corals bleach.

Teaching Approach: "Turn to Your Neighbor"

Cognitive Skills: (see Bloom's Taxonomy) — knowledge, comprehension, interpretation, application

Student Assessment: design an experiment

:: BACKGROUND :: :: FIGURES :: :: STUDENT INSTRUCTIONS :: :: NOTES TO FACULTY ::

FIGURE SET 3

Figure 3A

Journal of Experimental Marine Biology and Ecology

Figure 3B

For help, see the essay "Helping Your Students to Interpret Figures and Tables."

Figure 3A. Light intensity (microeinsteins per square meter per second) and metabolism (grams of oxygen per square meter per hour) of corals in 2 channels over a day (0600 = 6 AM; 1200 = 12 noon; 1800 = 6 PM). (From Rogers, C. S. 1979. The effect of shading on coral reef structure and function. Journal of Experimental Marine Biology and Ecology 41: 269-288).

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Figure 3B. Metabolism of control channel B and shaded channel 28 days after shading of channel A began. Units are the same as in 3A. (From Rogers, C. S. 1979. The effect of shading on coral reef structure and function. Journal of Experimental Marine Biology and Ecology 41: 269-288).

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