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Overview
Basics
Basics
Some of Tahoe's measured clarity decline is due to the introduction of shrimp and the subsequent loss of daphnia. Daphnia are exceptionally good at eating small (1-4 micron) algae and inorganic particles which are primarily responsible for Tahoe's clarity decline. Tahoe's warming surface waters, because of climate change, favors small algae because they sink slower. Reducing shrimp abundance to 27/m2 will allow daphnia to exist in the lake and result in improved clarity.
Completed
2018
2018
2020
$550,080
Alison Toy (antoy@ucdavis.edu)
12/06/2019
12/05/2022
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| Location Information | Location Notes |
|---|---|
Organizations
Organizations
EIP Details
EIP Basics
EIP Basics
04.01.01.0157 - Mysis Shrimp Removal
Performance Measures
Expected Performance Measures
Expected Performance Measures
No expected performance measures set for this project.
Reported Performance Measures
Reported Performance Measures
No annual performance measure accomplishments entered for this project.
| No accomplishments to report for: | |
| Year(s) | 2018, 2019, 2020 |
|---|---|
| Explanation | no performance measures for research projects |
Funding
Expected Funding
Expected Funding
$550,080
$550,080
$0
| Total | |||
|---|---|---|---|
| California Tahoe Conservancy (CTC) | $390,081 | $390,081 | $0 |
| Nevada Division of Environmental Protection (NDEP) | $59,999 | $59,999 | $0 |
| Private (Business) (Private) | $100,000 | $100,000 | $0 |
| Grand Total | $550,080 | $550,080 | $0 |
Reported Expenditures
Reported Expenditures
| Total | 2020 | 2019 | 2018 | |
|---|---|---|---|---|
| California Tahoe Conservancy | $390,081 | $0 | $0 | $390,081 |
| Nevada Division of Environmental Protection | $59,999 | $0 | $0 | $59,999 |
| Private (Business) | $100,000 | $0 | $100,000 | $0 |
| Grand Total | $550,080 | $0 | $100,000 | $450,080 |
Photos
TERC staff doing Mysis counts at night aboard the research vessel John LeConte
(Timing: During) (~2,267 KB)
Other Details
Watersheds
No watersheds set for this project.
Threshold Categories
-
By removing the invasive Mysis shrimp the population of native zooplankton daphnia will flourish. If the Daphnia are allowed to become the dominate zooplankton species they will be an ecological solution to improving water clarity. Daphnia are indiscriminate eaters who will consume fine sediments and algae and excrete a heavy fecal particle that will sink in the water column. By removing algae and fine particles from the water water quality could be improved.
Local and Regional Plans
No Local and Regional Plans set for this project.
Related Projects
Related Projects
04.01.01.0157 - Mysis Shrimp Removal is associated with following groups of projects.
External Links
Notes
Notes
| 12/05/2022 11:34 AM | Beth Vollmer | Treated 474 acres annually in 2018, 2019, and 2020. |