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Overview
Basics
Basics
Using the Implementation Plan for the Control of Aquatic Species in Lake Tahoe (2015) and the Lake Tahoe Region AIS Action Agenda 2021-2030, aquatic invasive plant infestation sites are prioritized for treatment and control of infestations. This project allows agencies and contracted divers to respond quickly to survey and control newly discovered plant infestations not identified in the Implementation Plan or Action Agenda, but those infestations that may be discovered during lake-wide monitoring surveys or by League to Save Lake Tahoe Eyes on the Lake volunteers.
Implementation
2018
2018
2030
$500,000
Mollie Hurt (mhurt@tahoercd.org)
04/15/2019
01/19/2024
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| Location Information | Location Notes |
|---|---|
Organizations
Organizations
EIP Details
EIP Basics
EIP Basics
01.03.01.0028 - Lake-wide Aquatic Invasive Plant Control - Rapid Response
This project is on the EIP 5-year list.
Performance Measures
Expected Performance Measures
Expected Performance Measures
| Acres Treated for Invasive Species | [Invasive Species Type: Aquatic] | 5 | acres |
| New Invasive Species Locations Detected | [Invasive Species Type: Aquatic] | 10 | number |
| Acres of Invasive Species Inventoried | [Invasive Species Type: Aquatic] | 100 | acres |
Reported Performance Measures
Reported Performance Measures
| Acres Treated for Invasive Species | ||||||||
|---|---|---|---|---|---|---|---|---|
| 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | Total | Units | |
| Invasive Species Type | ||||||||
| Aquatic | 0.1 | 1.1 | 3 | 0.5 | 0 | 1.33 | 6.03 | acres |
| Total | 0.1 | 1.1 | 3 | 0.5 | 0 | 1.33 | 6.03 | acres |
| Acres of Invasive Species Inventoried | ||||||||
|---|---|---|---|---|---|---|---|---|
| 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | Total | Units | |
| Invasive Species Type | ||||||||
| Aquatic | 100 | 1.25 | 0 | 10.7 | 111.95 | acres | ||
| Total | 0 | 0 | 100 | 1.25 | 0 | 10.7 | 111.95 | acres |
Funding
Expected Funding
Expected Funding
$500,000
$249,250
$250,750
($300,000 identified as )
| Total | |||
|---|---|---|---|
| California Department of Parks and Recreation (CDPR) | $1,300 | $1,300 | $0 |
| Lake Tahoe License Plate Program (NDSL) | $50,000 | $0 | $50,000 |
| League to Save Lake Tahoe (League) | $1,950 | $1,950 | $0 |
| Proposition 1 (CTC) | $130,000 | $130,000 | $0 |
| SB630 Funds (CTC) | $116,000 | $116,000 | $0 |
| Tahoe Fund (Tahoe Fund) | $100,000 | $0 | $100,000 |
| Tahoe Regional Planning Agency (TRPA) | $150,000 | $0 | $150,000 |
| Grand Total | $549,250 | $249,250 | $300,000 |
Reported Expenditures
Reported Expenditures
| Total | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | |
|---|---|---|---|---|---|---|---|
| California Department of Parks and Recreation | $1,300 | $0 | $0 | $0 | $0 | $1,300 | $0 |
| League to Save Lake Tahoe | $1,950 | $0 | $0 | $1,950 | $0 | $0 | $0 |
| Proposition 1 | $126,800 | $0 | $0 | $0 | $60,000 | $65,500 | $1,300 |
| SB630 Funds | $116,000 | $17,000 | $0 | $0 | $76,000 | $23,000 | $0 |
| Grand Total | $246,050 | $17,000 | $0 | $1,950 | $136,000 | $89,800 | $1,300 |
Photos
Aerial View of Baldwin-Kiva Beach, August 2020
(Timing: During) (~5,519 KB)
Aerial View of Camp Richardson Pier, South Lake Tahoe, CA, August 2020.
(Timing: During) (~2,063 KB)
Aerial View of Camp Richardson Pier, South Lake Tahoe, CA, July 2020.
(Timing: Before) (~3,916 KB)
Aerial View of Timber Cove survey results, South Lake Tahoe, CA, June 2020.
(Timing: Before) (~7,436 KB)
Diver hand-removing newly detected Eurasian watermilfoil at Obexer's Boat Company (marina), Homewood, CA, October 2023.
(Timing: During) (~599 KB)
Other Details
Watersheds
No watersheds set for this project.
Threshold Categories
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Removal of invasive plants will make the nearshore habitat less suitable for reproduction and survival of non-native warm water fish (that exhibit lower reproductive success) when exposed to high levels of UV light), thereby restoring and enhancing native fish species habitat.
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Removal of aquatic invasive plants in the nearshore will contribute to providing a high quality recreation experience in the nearshore.
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It has been demonstrated that satellite populations increase the rate of expansion of an invasion and targeting such populations for reduction can act to reduce spread rates, thereby reducing aesthetic and visual impacts in the nearshore.
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Eurasian watermilfoil has been found to alter phosphorous cycling in the water column in the nearshore of Lake Tahoe, potentially leading to increased algae production. Benefits to water quality will also be realized due to the resultant decline in CDOM (colored dissolved organic material) levels, which would indicate a reduction in the amount of decompositon of organic matter.
Local and Regional Plans
Related Projects
Related Projects
01.03.01.0028 - Lake-wide Aquatic Invasive Plant Control - Rapid Response is associated with following groups of projects.
External Links
No external links entered.
Notes
Notes
| 01/16/2024 10:17 AM | Mollie Hurt | Eurasian watermilfoil (Myriophyllum spicatum) was detected by contracted divers at Obexer's Boat Company (marina) during the 2023 Lake-wide aquatic invasive plant monitoring survey. Divers hand-removed the infestation in October 2023. | ||
| 01/13/2023 11:51 AM | Mollie Hurt | No previously unknown aquatic invasive plant infestations were reported to the LTASICC in 2022. | ||
| 03/07/2022 6:20 PM | Mollie Hurt | Rapid response was implemented in 2021: Glenbrook Bay: In July, divers hand-pulled Eurasian watermilfoil (EWM) plants scattered over .4 acres. Homewood High and Dry: In August, divers hand-pulled 6 established EWM plants, 450-500 small rooted EWM plants, and 300-350 floating EWM plant fragments. Obexers: In August, divers surveyed the marina and no aquatic invasive plant species were detected. |