Idaho Water Science Center

Aquatic Biology

Filter Total Items: 15
Date published: April 8, 2020
Status: Active

Continuous Water-Quality Monitoring of Middle Snake River Springs in Support of Threatened and Endangered Snail Species

Two species of aquatic snails, the Banbury Springs limpet (Idaholanx fresti) and the Bliss Rapids snail (Taylorconcha serpenticola) live in springs along the middle Snake River in...

Date published: March 23, 2020
Status: Active

Idaho's Large River Ambient Monitoring Network

From 1989 to 2009, the U.S. Geological Survey, in cooperation with the Idaho Department of Environmental Quality, monitored trends in water quality and biological integrity at more than 50 USGS streamgage stations on rivers throughout Idaho. In 2018, multiple State and Federal partners restarted a portion of the Large River Ambient Monitoring (LRAM) network.

Date published: March 20, 2020
Status: Active

Evaluating the Integration of Biosurveillance at USGS Streamgage Stations

The spread of invasive quagga and zebra mussels poses threats to water resources and water-resource infrastructure. Water-resource agencies such as the Bureau of Reclamation need cost-effective monitoring methods to provide early detection for immediate response. 

Date published: March 20, 2020
Status: Active

Bathymetric Mapping of the Kootenai River

The Kootenai River white sturgeon (Acipenser transmontanus) and other native fish species are culturally important to the Kootenai Tribe of Idaho, but their habitat and recruitment have been affected by anthropogenic changes to the river. The Tribe has undertaken a large-scale restoration project and needs objective...

Contacts: Ryan L Fosness
Date published: March 16, 2020
Status: Active

Kootenai River Water-Quality Monitoring Related to Transboundary Coal Mining

The Kootenai River (Kootenay in Canada) rises from the Canadian Rockies and flows south in an arc through Montana and Idaho before swinging back into British Columbia and the Columbia River. The uplifted sedimentary rocks forming the southern Canadian Rockies have rich coal deposits that have been mined for many decades. The coal beds and associated rock layers are enriched with other minerals...

Date published: March 2, 2020
Status: Active

Evaluating Spatial and Temporal Fine-Scale Movement of Kootenai River White Sturgeon

The U.S. Fish and Wildlife Service has published a plan for recovering the endangered Kootenai River white sturgeon. This study supports the objectives of that plan by quantifying white sturgeon habitat preference within a recently restored reach of the...

Contacts: Ryan L Fosness
Date published: January 6, 2020
Status: Active

Assessing the Water Quality of the Lower Boise River and Selected Tributaries

For decades, the lower Boise River downstream of Lucky Peak Reservoir has been highly enriched with phosphorus. Too much of a good thing, the high concentrations of phosphorus create a cycle of excessive plant growth, decreased oxygen for fish, and even algal blooms. 

Contacts: Tyler King
Date published: November 20, 2017
Status: Completed

Macroinvertebrate Communities Evaluated Before and After a Channel Restoration Project in Silver Creek, Blaine County

The U.S. Geological Survey, in cooperation with Blaine County and The Nature Conservancy, evaluated the status of macroinvertebrate1 communities prior to and following a channel restoration project in Silver Creek, Blaine County, Idaho. The objective of the evaluation was to determine whether 2014 remediation efforts to restore natural channel conditions in an impounded area of Silver Creek...

Date published: August 18, 2017
Status: Completed

Monitoring Mercury in Fish Tissue, Boise and Snake Rivers and Brownlee Reservoir

To meet National Pollution Discharge Elimination System (NPDES) permitting requirements, the City of Boise will be responsible for collecting fish tissue samples for mercury analysis upstream of and downstream of their wastewater treatment facilities discharging to the lower Boise and Snake Rivers.

Mercury is a naturally occurring element that ultimately makes its way into aquatic...

Date published: August 8, 2017
Status: Completed

Wood River Valley Aquatic Biology and Habitat Assessment

Blaine County’s population nearly quadrupled from about 5,700 to 22,000 people between 1970 and 2010. Residents and resource managers of the Wood River Valley of south-central Idaho are concerned about the potential effects that population growth and the expected increased demand for water might have on the quantity and quality of the valley’s ground and surface waters. Increased water use has...

Date published: August 4, 2017
Status: Completed

Identifying Bull Trout Migration in the Upper Boise River Basin

In 1999, the U.S. Fish and Wildlife Service (FWS) listed the bull trout (Salvelinus confluentus) as a threatened species. In 2010, the FWS designated critical habitat for the bull trout, including the upper Boise River basin. The Bureau of Reclamation (Reclamation) operates three reservoirs on the upper Boise River for irrigation and flood control. Reclamation and FWS have a need to understand...

Date published: January 1, 2017
Status: Completed

Effects of Nutrient Enrichment on Stream Ecosystems (Upper Snake River Basin NAWQA)

Nutrient enrichment can affect the ecological health of a stream. For example, excessive aquatic plant growth caused by increased nutrients can reduce dissolved oxygen necessary for other aquatic life. Topics of particular interest in this study area include:

seasonal patterns among nutrients, flows, algae and plants in streams

rooted aquatic plant vs. algae growth