Editing Lake Tahoe (section)

===Ecosystem changes===
Since the 1960s, the Lake's food web and [[zooplankton]] populations have undergone major changes. In 1963–65, [[Mysida|opossum shrimp]] (''[[Mysis diluviana]]'') were introduced to enhance the food supply for the introduced [[Kokanee salmon]] (''Oncorhynchus nerka'').<ref>{{Cite news|url=https://www.latimes.com/environment/story/2019-09-06/lake-tahoe-clarity-shrimp-pollution|title=Will Lake Tahoe's invasive shrimp become the next mass-market health supplement?|date=September 7, 2019|newspaper=[[Los Angeles Times]]|first=Louis |last=Sahagun|language=en-US|access-date=September 8, 2019}}</ref> The shrimp began feeding on the lake's [[cladoceran]]s (''[[Daphnia]]'' and ''[[Bosmina]]''), and their populations virtually disappeared by 1971.<ref>{{cite journal|author=Goldman, C.R.|author2=M.D. Morgan|author3=S.T. Threlkeld|author4=N. Angeli|title=A Population Dynamics Analysis of the Cladoceran Disappearance from Lake Tahoe, California-Nevada|journal=Limnology and Oceanography|volume=24|pages=289–97|year=1979|issue=2|doi=10.4319/lo.1979.24.2.0289|citeseerx=10.1.1.556.6018|bibcode=1979LimOc..24..289G}}</ref> The shrimp provide a food resource for salmon and [[trout]], but also compete with juvenile fish for zooplankton. Since the 1970s, the cladoceran populations have somewhat recovered, but not to former levels. Since 2006, [[goldfish]] have been observed in the lake, where they have grown to "giant size". An [[invasive species]], they may have descended from former pets which owners dumped, or when used as fishing bait.<ref>Laila Kearney. Goldfish influx threatens to cloud pristine Lake Tahoe waters. Reuters February 22, 2013.</ref>

The Lake Tahoe area is prone to wildfires, particularly the [[South Lake Tahoe]] region. The areas around are heavily forested, with four more times as much understory trees than in recent years. They are some of the most flammable types of trees.<ref>{{cite news |last1=Cart |first1=Julie |title='It will not be survivable': Lake Tahoe could be a deathtrap during major wildfires |url=https://thenevadaindependent.com/article/it-will-not-be-survivable-lake-tahoe-could-be-a-deathtrap-during-major-wildfires |access-date=April 15, 2025 |work=The Nevada Independent |date=March 26, 2025}}</ref> In June 2007, the [[Angora Fire]] burned approximately {{convert|3100|acre|abbr=on}} throughout the South Lake Tahoe area. While the impact of ash on the lake's ecosystem is predicted to be minimal, the impact of potential future erosion is not yet known.<ref>{{cite news|title=Raging Tahoe Fire's Roots: 150 Years of Mismanagement|author=Carl T. Hall|newspaper=San Francisco Chronicle|date=June 26, 2007|page=A-1}}</ref>