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This lesson is adapted from: The Business of Abusing the Lake: https://drive.google.com/file/d/0B_VSisRnRPxhU1FBeVMzdlhDbUU/view?usp=sharing&resourcekey=0-RiU5FQagXhSzCTXgJavb8A STEP#1: Timeline of Utah Lake: Pass out card(s) to each student (see link from above). Students read the card, create a small picture (think like a cartoon block) to show what happened. Make sure they include the date and one sentence to describe what happened. Create a LARGE timeline on the wall. When students are finished, have them present each part of the timeline in chronological order to the rest of the class. STEP 2: Students create a descriptive map of the OLD Utah Lake: https://www.junesuckerrecovery.org/resources/utah-lake-facts-history https://www.youtube.com/watch?v=Vg76irg9WFw
Havestudents create a map of what Utah Lake looked like BEFORE 1847. Make sure the map is descriptive- showing what the ecosystem of Utah Lake was like- this includes- (labeling) local plant life, native fish, depth of Utah Lake, potential water quality. Some of this can be gathered from the timeline, other parts we will present (as students ask for information) 13 Native Fish Species: June Sucker Utah Sucker Utah Lake sculpin Bonneville cutthroat trout Least chub Bonneville redside shiner Mottled sculpin Leatherside chub Utah chub Speckled dace Longnose dace Mountain whitefish Mountain sucker Depth of the Lake: 29-34 feet Native Plants: Plant Image Plant Names Cottonwood Trees Silver Sagebrush Showy Milkweed Common Sunflower American Licorice Bractine Vervain S TEP3 Virtual Field Trip - Students will create a map of what Utah Lake’s ecosystem is like TODAY. DATA: Utah Lake's water, for example, is classified as impaired for total dissolved solids and has high levels of phosphorus, which means it is not ideal for aquatic life. The lake's ecosystem, which historically supported many species of fish, is now overrun with carp and is barely able to provide adequate habitat for its two remaining native fish species – the June sucker and the Utah sucker. Efforts to remove non-native carp in recent years are gradually helping to change this.
Elevated nutrient loading such as phosphate from agricultural runoff and wastewater The introduction and establishment of common carp, which disrupt aquatic vegetation on the lakebed as they search for food Wind and wave action, which stir bottom sediments Lake level fluctuations, which cause sediments along the shoreline to become suspended. Utah Lake is very shallow, averaging only about nine feet deep over its 148 square miles. Over millions of years, thousands of feet of sediment have accumulated on the lakebed contributing to its shallow condition and naturally cloudy appearance. The amount of water in the lake is heavily influenced by the amount of snowfall Utah’s mountains receive, producing nearly 98 percent of its inflow. Every summer, the lake loses about one-third to one-half of its volume due mostly to evaporation, reducing the amount of water in the lake by three to four feet between June and September. The lake’s level is also affected by the amount of water taken from the lake and its tributaries for municipal and irrigation uses
Depth of the lake: 9-14 feet
PLANTS OF UTAH LAKE: https://johnhutchingsmuseum.org/plants-research-utah-lake-field-station/
INVASIVESPECIES Image of Plant Name of Plant
Cotton Thistle
Russian Olive
Common Reed
Common Chicory
Perennial Pepperwood
Bittersweet Nightshade
Moth Mullein
Yellow Sweet Clover
Houndstongue
Purple Loosestrife
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STEP4 and 5 Students will work on groups to develop a solution to restore Utah Lake Students will need to consider- criteria, constraints, timeline of restoration, and justify why their idea is the best solution. They will present their solutions to the class- which should include a graphic, explanation and justification. As students present their solutions, the rest of the students will be evaluating for the best solution. Teachers should present THIS solution as a potential solution….. https://www.deseret.com/2018/1/9/20638022/group-proposes-cleanup-island-city-at-utah-lake
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