Labster Virtual Lab: Eutrophication Simulation

ABOUT THE VIRTUAL LAB SIMULATION In this lab you act as an environmental investigator whose mission is to solve the massive fish kill mystery. In the Marine Biology Lab you have already discovered that the fish were dying of suffocation, but you want to know what caused the low dissolved oxygen levels. In this lab you will have to use microscopy to analyze the biological matter in the water, and spectrophotometry to study dissolved nitrogen levels. This will give you the data you need to conclude your investigation. SUMMARIZED LEARNING OUTCOMES - Understand the nitrogen cycle and its importance for living beings. - Learn the concept of eutrophication and harmful algal bloom, and the impact that it has on the ecosystem. - Analyze dissolved nitrogen levels in the water sample. - Understand the importance of sampling from different locations to get representative data. DETAILED LAB DESCRIPTION Harmful algal bloom In the Marine Biology Lab you’ve found that the low oxygen in the water was causing the suffocation of the fish. Looking for more data you’ll analyze the water sample using the microscope. In this way you can study the biological matter in the water. Have the algae in the water something to do with the low oxygen levels? Nitrogen cycle and determination of dissolve nitrogen level You will learn about the nitrogen cycle and how human activity can influence it. You will analyze nitrogen content in the water sample using spectrophotometry. An interactive map will...