LAB SimUText Nutrient Pollution process of eutrophication and explain its effects on ecosystems and humans
Non-point-source pollution of rivers and water bodies is a widespread problem in the U.S. and
elsewhere. Sewage effluent from water treatment plants and residential septic tanks, and runoff
from lawns, golf courses, agricultural fields, and impervious surfaces carries nutrients,
pesticides, petroleum residues, metals, and other harmful chemicals into aquatic systems. Once
there, these pollutants create myriad problems for wildlife and for human uses of the water,
including losses of biodiversity, eutrophication, toxic blooms, fish kills, and human health
concerns. In this lab you will perform a number of experiments in a simulated lake ecosystem to
study causes and effects of water pollution and eutrophication.
Important note: You should have tested your access to SimUText in Week 1 of the
course. If you do not have access to SimUText please contact your instructor for options.
This document will be your guide and instructions to complete the LAB SimUText Nutrient
Pollution. You will want to keep it open on your computer or print it out as you work on the
Estimated time to complete: 3-4 hours.
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Assignment Learning Outcomes
1. Describe the process of eutrophication and explain its effects on ecosystems and humans
2. Describe the process of biomagnification (biological magnification) and explain its effects on
ecosystems and humans
3. Explain why limiting nutrients tend to be pollutants in aquatic systems.
4. Design and carry out experiments to determine causes and effects of water pollutants.
Module Learning Outcomes
MLO 2. Discuss how we use water and alter freshwater systems
MLO 4. Describe the major classes of water pollution and propose solutions to address water
Course Learning Outcomes:
C1. Recognize and apply biological concepts and theories in complex, interdisciplinary
environmental and sustainability problems.
C2. Explain and predict effects of pollutants on ecosystems based on ecological principles
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