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Upper Columbia Nutrient Supplementation

Data Categories Age and growth
Measures of habitat quality
Water temperature
Macroinvertebrate sampling
Water quality
Food habits/diet
Dates of Data 2008 TO 2015
Data Set Status In work
Data Set Update Schedule None Planned
Date Data Set Published on StreamNet Data Store 04-04-2016
Project Name & Number 2008-471-00
Purpose of Data Set Pacific salmonid populations have declined dramatically across the Columbia River Basin. These population declines are often due to cumulative effects of multiple factors affecting production in freshwater and marine environments. An important result of these population declines is the concurrent nutrient, productivity, and ecosystem function losses associated with significantly reduced marine derived nutrient (MDN) loading rates from the loss of salmon carcass. Anadromous salmon carcasses provide significant amounts of MDN, which historically provided the bases for primary productivity in stream systems, especially in the interior areas which are naturally oligotrophic. Lower MDN loading from diminished salmon runs results in negative feedback through reduced juvenile rearing capacity for Pacific salmon systems. Recent research has indicated that MDN loading rates as low as 6-15% of historical levels currently exist among anadromous salmon spawning streams in the Pacific Northwest.
This project will quantify and evaluate nutrient status and availability in the Methow River Basin, a Subbasin of the Upper Columbia River watershed area in north central Washington, in response to diminished anadromous salmon runs. More specifically, this project is conducting a rigorous multi-trophic level sampling program to quantify and evaluate baseline water quality and nutrient availability, primary secondary and tertiary productivity rates including algal, periphyton, benthic macroinvertebrate and fish communities . A stratified random sampling design was used to select study sites in each of the upper, middle, and lower reaches of the study area (Twisp River). The goal is to develop a comprehensive pre- and any post-treatment (experimental nutrient addition) biological assessment. Finally, this project provides the necessary adaptive management framework to determine if nutrient limitation and/or imbalance currently exist and to generate empirically-based recommendations and prescriptions for restoring limnological conditions needed to increase natural production of anadromous salmonids in the study area (Twisp River).
Summary / Abstract All data collected from Hancock Springs Nutrient Project related to energy flow webs in a restored spring fed creek. This includes: Electrofishing capture and re-capture fish data (Juv. Chinook, Steelhead, Coho, Brook Trout, Bull Trout, Sculpin); Water Chemistry; Primary Productivity; Macroinvertebrate (aquatic and terrestrial) assemblages; and temperature.
Broad Biological Groups fishes; invertebrates; periphyton
Taxa Oncorhynchus tshawytscha; Oncorhynchus kisutch; Oncorhynchus mykiss; Salvelinus fontinalis; Salvelinus confluentus; Ephemeroptera; Plecoptera; Trichoptera
Location Hancock Springs and Twisp River, Methow River Basin, Okanogan County, Washington State
NPCC Subbasins (2001 Subbasins) Provincial (Columbia Cascade/Wenatchee)
Keywords Hancock Springs; Electrofishing; Restoration; Energy Flow Webs
Lead Person and Organization That Created the Data Set Yakama Confederated Tribes
Other Participating Organizations Funding provided by Bonneville Power Administration
Contact Person for Questions About the Data Name:  Teresa Fish
Organization:  Yakama Confederated Tribes
Address:  PO BOX 549
Twisp, WA  98856
Phone:  (509) 314-1462
Broad Category of Methods Field; Lab
Data Collection Methods Electrofishing; Periphyton Rock Scraping; Hess Sampler; Lavage; Macroinvertebrate Pan Traps;
File Formats Microsoft Access; Microsoft Word; Microsoft Excel
Data structure description See data set files.
URL where updated data may be available
Some data sets are intrinsically linked to software, tools, models, or statistical procedures, and must be used in association in order to be of value. If this applies to this data set then the following information will apply:
Relationship between the data set and the software, model, etc. Excel Spreadsheets are used to calculate the coefficients of variation (CV) and populations of fish after each electroshocking effort and Hancock Springs. For electroshocking efforts that required only 2 passes, the fish populations can be estimated using the Seber-LeCren.xlsx spreadsheet. If the electroshocking efforts required more than 2 passes, the populations can be estimated using the "Zippin.xlsx" spreadsheet.
Where the software, tools, models, etc. can be obtained if they are not included with the data download.
Contact person for questions about the software, tools, models, etc. Name:  Teresa Fish
Organization:  Yakama Nation
Address:  PO Box 549
Twisp, WA 98856

Papers, reports, and presentations that were done under this project.
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File Size: 39 MB