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Overview
Basics
Basics
Evaluate conditions of the nearshore fishery, test and develop traditional and novel metrics to determine long-term and short-term changes to the nearshore habitat of Lake Tahoe.
Completed
2007
2008
2011
$259,997
Kat McIntyre (KMcIntyre@trpa.gov)
10/03/2017
10/03/2017
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| Location Information | Location Notes |
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Organizations
EIP Details
EIP Basics
EIP Basics
04.01.01.0071 - P027: NICHES: Nearshore Indicators for Clarity, Habitat and Ecological Sustainability
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
$259,997
$259,997
$0
| Total | |||
|---|---|---|---|
| Unknown or Unassigned | $259,997 | $259,997 | $0 |
| Grand Total | $259,997 | $259,997 | $0 |
Reported Expenditures
Reported Expenditures
| Total | 2011 | 2010 | 2009 | 2008 | 2007 | |
|---|---|---|---|---|---|---|
| Southern Nevada Public Land Management Act (Pacifi... | $259,997 | $51,999 | $52,000 | $52,000 | $51,999 | $51,999 |
| Grand Total | $259,997 | $51,999 | $52,000 | $52,000 | $51,999 | $51,999 |
Photos
Other Details
Watersheds
No watersheds set for this project.
Threshold Categories
-
Water clarity, water quality, and ecosystem integrity of Lake Tahoe are threatened by multiple stressors. The nearshore area is of critical importance since it is influenced by anthropogenic disturbances, is the primary interface with the general public, and supports native fish spawning and production.
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
| 08/13/2017 10:04 PM | System | Objectives: Our assessment of the nearshore fish communities in Lake Tahoe addressed the following objectives: • Conduct a contemporary evaluation of the nearshore fishery. • Evaluate a variety of traditional indicators that may be used to determine long-term change. • Determine an efficient capturing method to assess nearshore fish communities. • Develop novel metrics including UV transparency and trophic niche (stable isotope techniques) to detect shorter term change to the nearshore habitat. • Provide recommendations and guidance for establishing a long-term monitoring program for nearshore fish communities of Lake Tahoe. |
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| 08/13/2017 10:03 PM | System | Findings: • The potential of using two novel indicators (trophic niche and UV) to measure long- and short-term changes in nearshore fishery was examined. Changes in trophic niche were found. • All fish species examined, except Tahoe sucker (Catostomus tahoensis) demonstrated greater reliance in pelagic food source and all fish species have reduced trophic position. • UV exposure and in situ incubation experiments show that UV transparency of nearshore sites significantly impacts the survival of warmwater fish larvae and influences whether these potentially invasive fish species are able to establish in nearshore Lake Tahoe. • Native fish larvae (Lahontan redside shiner) were at least six times more tolerant of UV exposure than non-native warmwater fish larvae (bluegill and largemouth bass). The observed difference in UV tolerance in native versus non-native fish was used to develop a UV attainment threshold (UVAT, i.e. a water clarity threshold based on water transparency to UV) that is lethal to non-native fish larvae with no observed effect on native fish larvae. *** See www.fs.fed.us/PSW/partnerships/tahoescience for additional findings. |
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| 08/13/2017 10:02 PM | System | Management Implications: A long-term nearshore monitoring and warmwater fish prevention program utilizing ecologically relevant metrics is necessary to help us better understand Lake Tahoe’s nearshore native fishery, and assist stakeholders to more effectively manage and restore the lake’s precious native biodiversity. |
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| 08/13/2017 10:01 PM | System | Publications: www.fs.fed.us/PSW/partnerships/tahoescience NICHES: Nearshore Indicators for Clarity, Habitat and Ecological Sustainability; Christine Ka Lai Ngai, Dr. Sudeep Chandra, Joseph Sullivan, John Umek, Betina Chaon, Paul Zander, Hollund Rudolph, Andrew Tucker, Dr. Craig Willamson, Dr. Jim Oris, Amanda Gevertz. |