Bottles Used in Aquatic Productivity Stud

Bottles Used in Aquatic Productivity Stud

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Credit: MARTIN SHIELDS/SCIENCE PHOTO LIBRARY

Caption: Light and dark bottles for an aquatic primary productivity study. The dissolved oxygen (D.O.) of the bottles was measured initially and will be measured the next day. Changes in D.O. will reveal the extent of photosynthesic production of organic miolecules (primary productivity) by the algae in the water. The dark bottle (wrapped in foil) will reveal the extent of cellular respiration that consumes organic molecules, while the light bottle will show the rate of gross productivity (photosynthesis and respiration). The experiment is part of a high school biology lab.

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Keywords: approach, aquatic, biological, biology, bottles, cellular respiration, ecological, ecology, experiment, gross productivity, lab, laboratory, light dark, light-dark, light/dark, method, net productivity, photosynthesis, photosynthetic, primary, production, productivity, quality, research, respiration, science, study, technique, testing, tool, tools, water

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