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Overview
Basics
Basics
Changes in nearshore conditions at Lake Tahoe have become evident to both visitors and residents of the Tahoe Basin, with increasing stakeholder interest in managing the factors that have contributed to apparent deterioration of the nearshore environment. This has lead to joint implementation of a Nearshore Science Team and the Nearshore Agency Working Group, which together have contributed to a synthesis review of nearshore information and the development of a monitoring and evaluation plan that will track changes in nearshore conditions. A conceptual model is presented that conveys a contemporary understanding of the factors and activities that affect desired nearshore qualities.
Completed
2009
2010
2013
$188,775
Alan Heyvaert (alan.heyvaert@dri.edu)
10/27/2017
06/25/2025
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| Location Information | Location Notes |
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Organizations
EIP Details
EIP Basics
EIP Basics
04.01.01.0103 - P048: Lake Tahoe Nearshore Evaluation and Monitoring Framework
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.
Funding
Expected Funding
Expected Funding
$188,775
$188,775
$0
| Total | |||
|---|---|---|---|
| Southern Nevada Public Land Management Act (Pacific Southwest Research Station) (USFS - PSW) | $188,775 | $188,775 | $0 |
| Grand Total | $188,775 | $188,775 | $0 |
Reported Expenditures
Reported Expenditures
| Total | 2013 | 2012 | 2011 | 2010 | 2009 | |
|---|---|---|---|---|---|---|
| Southern Nevada Public Land Management Act (Pacifi... | $188,775 | $37,755 | $37,755 | $37,755 | $37,755 | $37,755 |
| Grand Total | $188,775 | $37,755 | $37,755 | $37,755 | $37,755 | $37,755 |
Photos
Other Details
Watersheds
No watersheds set for this project.
Threshold Categories
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Lake Tahoe’s nearshore environment has historically received less attention than the surrounding watershed and mid-lake environments. Often, the nearshore zone has been perceived simply as a conduit transporting sediment and nutrients from the watershed into Lake Tahoe’s open-waters. While there have been potential improvements to the open water habitat (e.g. clarity) of the lake, basin managers are now turning their attention to understanding nearshore processes.
Local and Regional Plans
No Local and Regional Plans set for this project.
Related Projects
Related Projects
No Related Projects set for this project.
External Links
No external links entered.
Notes
Notes
| 08/14/2017 5:37 AM | Kiara Cuerpo-Hadsall | Objectives: Two overarching management objective statements were developed to support achieving the desired condition. The first is for preserving ecological and aesthetic characteristics of the nearshore: • Maintain and/or restore to the greatest extent practical the physical, biological and chemical integrity of the nearshore environment such that water transparency, benthic biomass and community structure are deemed acceptable at localized areas of significance. This report proposes that the nearshore ecology and aesthetic objective will be evaluated on the basis of three separate indicators (with associated metrics) that collectively provide assessment of: • Nearshore clarity. • Nearshore trophic status (nutrients and algal growth that indicate the degree of eutrophication). • Nearshore community structure (biological composition). The other objective is for sustaining conditions suitable for human health in the nearshore zone: • Maintain nearshore conditions to standards that are deemed acceptable to human health for purposes of contact recreation and exposure. The focus for this objective is specifically on health risks associated with recreational exposure and not on attendant risks associated with water provided from the nearshore for municipal or domestic supply. Existing state and local programs enforce potable water supply standards. They also provide criteria for tracking the presence of pathogens and toxic compounds that may affect conditions for human health, which serves as the indicator for this objective. |
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| 08/14/2017 5:36 AM | Kiara Cuerpo-Hadsall | Management Implications: • Conditions in the lake will continue to change over time as a consequence of changing patterns in land use, recreational activities, climate, species distributions, and other as yet potentially unidentified factors. A regular program of data collection allows the stakeholder community to detect and evaluate these changes in the context of natural variability and desired conditions. • Ultimately, the findings and recommendations of this project are expected to support several agency statutory and programmatic needs by: 1) providing baseline information to support assessment of relevant state and TRPA standards; 2) supporting the development of products for the Tahoe Monitoring and Evaluation Program; 3) tracking the effectiveness of the Tahoe TMDL Program and other EIP efforts related to nearshore condition; and 4) contributing to detection and management of aquatic invasive species in the nearshore. |
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| 08/14/2017 5:36 AM | Kiara Cuerpo-Hadsall | Findings: • A nearshore water quality conceptual model was completed. • A process was developed and utilized to evaluate 17 nearshore attributes for use in a coordinated monitoring program. Four broad categories were selected; Clarity, Trophic Status, Community Structure, and Human Health considerations to ensure a balanced, comprehensive evaluation of nearshore conditions. • Ten metrics were selected to represent the four categories for monitoring purposes. • For each metric, monitoring locations and frequencies in Lake Tahoe were identified. • Background measurements for each metric and for each location were determined. • Interim thresholds were developed for each metric, with the expectation that additional monitoring would be necessary to confirm the original threshold estimates. • Finally, a comprehensive monitoring plan was developed for the suite of 10 metrics. |
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| 08/14/2017 5:35 AM | Kiara Cuerpo-Hadsall | Publications: www.fs.fed.us/PSW/partnerships/tahoescience |