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Eutrophication is a process driven by excess nutrients, particularly nitrogen and phosphorus, that leads to increased phytoplankton growth in aquatic environments. As phytoplankton thrive, they become food for zooplankton, and their decomposition elevates bacterial populations at the bottom, which in turn consume more dissolved oxygen (DO). This depletion of oxygen negatively affects aquatic life, including shrimp and fish. Understanding these dynamics is crucial, especially regarding the impact of fertilizer overuse on natural ecosystems.
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Do now: • Explain the how eutrophication occurs? What are the chemicals involved? • Increased phytoplankton which get eaten by the zooplankton and the dead zooplankton get eaten by the bacteria at the bottom. This increases the level of bacteria and they consume more O2 and negatively impact the shrimp, fish,…
Do now: eutrophication - chemicals • Nitrogen - Sea / Salt waters • Phosphorus - Fresh water
Homework & Objective • Owl Pellet lab – All in? • Reading – should be through Chapter 5. Start chapter 6 – pages 136- 146 stopping at Economics: • Vocab words: • 31. Pandemic • 32. Dissolved Oxygen (DO) • 33. Negative feedback loop • 34. Positive feedback loop • 35. Food Web • Objective: TSW examine biospheres / impact of over use of fertilizers
