Populations of North American beaver (Castor canadensis) have increased in recent years due to decreased trapping, habitat restoration, and recognition of their importance as a keystone species in stream ecosystems (Pollock and others, 2017).
In 1990, the USGS began assessing water-quality in the Tualatin River. Almost 30 years later, we are still monitoring conditions in the basin.
The USGS began to assess water quality conditions in the Tualatin River in 1990. The research included tracking how nutrients entered the river and establishing a instrument network to monitor dissolved-oxygen concentrations. Eventually, more issues arose and the research expanded to meet the needs of those reglatory agencies that manage the natural resources of the basin.
Below are other science projects associated with this project.
City Beavers: Tualatin River Basin Beaver Study
Beavers and their dams are common sights along creeks in the Tualatin River basin. Beaver help create diverse habitats for many other animals, including birds, fish, and amphibians. The USGS studying the affect beaver activity has on the amount and quality of water in local streams, so that agencies in the basin can make strategic management and habitat restoration decisions based on science.
Water-Quality Modeling Group
The USGS Oregon Water Science Center water-quality modeling group develops and uses models at a range of scales, from those that focus on a specific reservoir or river reach to large-scale nutrient models of the entire Pacific Northwest.
Henry Hagg Lake Water-Quality Model
Henry Hagg Lake is a reservoir located in the foothills of the eastern slope of the Coast Range Mountains of northwestern Oregon. The lake is used for recreation in the summer and flood control in the winter.
Below are multimedia items associated with this project.
1. Overview of the Tualatin Urban Beaver Dam Study
Populations of North American beaver (Castor canadensis) have increased in recent years due to decreased trapping, habitat restoration, and recognition of their importance as a keystone species in stream ecosystems (Pollock and others, 2017).
2. Beaver Dam Inventory and Beaver Dam Capacity Estimates
Beavers and their dams can substantially change the storage and movement of water through a stream reach. The magnitude of this change is, in part, a function of the number and type of dams plus stream characteristics.
Beavers and their dams can substantially change the storage and movement of water through a stream reach. The magnitude of this change is, in part, a function of the number and type of dams plus stream characteristics.
3. Hydraulic Effects of Beaver Dams
Beaver dams and ponds fundamentally alter how water moves through a stream reach. Semi-porous dams can impound water, leading to backwatering, floodplain inundation, and overall changes in wetted area, depth, and velocity.
For this part of the study, USGS:
Beaver dams and ponds fundamentally alter how water moves through a stream reach. Semi-porous dams can impound water, leading to backwatering, floodplain inundation, and overall changes in wetted area, depth, and velocity.
For this part of the study, USGS:
4. Effects of Beaver Activity on Water Quality
Beaver dams and ponds alter the movement and storage of water as well as the water quality in a stream reach. To date, little work has been done to quantify the effects of beaver activity on water quality in urban streams.
Beaver dams and ponds alter the movement and storage of water as well as the water quality in a stream reach. To date, little work has been done to quantify the effects of beaver activity on water quality in urban streams.
5. Effects of Beaver Dams on Sediment Transport
Beaver dams and associated ponding affect sediment transport and trapping by pushing water onto the floodplain and decreasing stream velocity, allowing for increased sediment deposition.
Beaver dams and associated ponding affect sediment transport and trapping by pushing water onto the floodplain and decreasing stream velocity, allowing for increased sediment deposition.
Effects of beaver dams on urban streams in the Tualatin River Basin
Poster: Within Our Reach (2016)
White, J., Jones, K., Buccola, N., Costello, A., Poor, E., Rounds, S.A., and Smith, C., 2016, Effects of beaver dams on urban streams in the Tualatin River Basin.
Poster: Within Our Reach (2016)
White, J., Jones, K., Buccola, N., Costello, A., Poor, E., Rounds, S.A., and Smith, C., 2016, Effects of beaver dams on urban streams in the Tualatin River Basin.
Plankton response to low dissolved oxygen in the Tualatin River
Poster for Tualatin plankton study.
Carpenter, K.D. and Rounds, S.A., 2014, Plankton communities and summertime declines in algal abundance associated with low dissolved oxygen in the Tualatin River, Oregon.
Poster for Tualatin plankton study.
Carpenter, K.D. and Rounds, S.A., 2014, Plankton communities and summertime declines in algal abundance associated with low dissolved oxygen in the Tualatin River, Oregon.
Monitoring water in Wapato Lake WIldlife Refuge, Oregon
Poster for Wapato Lake Monitoring Project.
Rounds, S.A., 2014, Monitoring streamflow, water levels, and water quality in the Wapato Lake National Wildlife Refuge, Oregon.
Poster for Wapato Lake Monitoring Project.
Rounds, S.A., 2014, Monitoring streamflow, water levels, and water quality in the Wapato Lake National Wildlife Refuge, Oregon.
Sources, sinks, and transport of organic matter in Fanno Creek
Poster for organic matter study along Fanno Creek.
Keith, M., Sobieszczyk, S., Rounds, S., and Goldman, J., 2014, Sources, sinks, and transport of organic matter with fine sediment along an urban stream.
Poster for organic matter study along Fanno Creek.
Keith, M., Sobieszczyk, S., Rounds, S., and Goldman, J., 2014, Sources, sinks, and transport of organic matter with fine sediment along an urban stream.
What's in Our Water?
In this episode, we are going to investigate more than just the substance "water." We are going to examine what is in our nations' water, how we at the U.S. Geological Survey monitor it, and what tools we have developed to aid those who want to explore more about our planet's most abundant resource. This is the USGS Oregon Science Podcast.
In this episode, we are going to investigate more than just the substance "water." We are going to examine what is in our nations' water, how we at the U.S. Geological Survey monitor it, and what tools we have developed to aid those who want to explore more about our planet's most abundant resource. This is the USGS Oregon Science Podcast.
What's in Our Water?
In this episode, we are going to investigate more than just the substance "water." We are going to examine what is in our nations' water, how we at the U.S. Geological Survey monitor it, and what tools we have developed to aid those who want to explore more about our planet's most abundant resource. This is the USGS CoreCast.
In this episode, we are going to investigate more than just the substance "water." We are going to examine what is in our nations' water, how we at the U.S. Geological Survey monitor it, and what tools we have developed to aid those who want to explore more about our planet's most abundant resource. This is the USGS CoreCast.
Below are other science projects associated with this project.
City Beavers: Tualatin River Basin Beaver Study
Beavers and their dams are common sights along creeks in the Tualatin River basin. Beaver help create diverse habitats for many other animals, including birds, fish, and amphibians. The USGS studying the affect beaver activity has on the amount and quality of water in local streams, so that agencies in the basin can make strategic management and habitat restoration decisions based on science.
Water-Quality Modeling Group
The USGS Oregon Water Science Center water-quality modeling group develops and uses models at a range of scales, from those that focus on a specific reservoir or river reach to large-scale nutrient models of the entire Pacific Northwest.
Henry Hagg Lake Water-Quality Model
Henry Hagg Lake is a reservoir located in the foothills of the eastern slope of the Coast Range Mountains of northwestern Oregon. The lake is used for recreation in the summer and flood control in the winter.
Below are multimedia items associated with this project.
1. Overview of the Tualatin Urban Beaver Dam Study
Populations of North American beaver (Castor canadensis) have increased in recent years due to decreased trapping, habitat restoration, and recognition of their importance as a keystone species in stream ecosystems (Pollock and others, 2017).
Populations of North American beaver (Castor canadensis) have increased in recent years due to decreased trapping, habitat restoration, and recognition of their importance as a keystone species in stream ecosystems (Pollock and others, 2017).
2. Beaver Dam Inventory and Beaver Dam Capacity Estimates
Beavers and their dams can substantially change the storage and movement of water through a stream reach. The magnitude of this change is, in part, a function of the number and type of dams plus stream characteristics.
Beavers and their dams can substantially change the storage and movement of water through a stream reach. The magnitude of this change is, in part, a function of the number and type of dams plus stream characteristics.
3. Hydraulic Effects of Beaver Dams
Beaver dams and ponds fundamentally alter how water moves through a stream reach. Semi-porous dams can impound water, leading to backwatering, floodplain inundation, and overall changes in wetted area, depth, and velocity.
For this part of the study, USGS:
Beaver dams and ponds fundamentally alter how water moves through a stream reach. Semi-porous dams can impound water, leading to backwatering, floodplain inundation, and overall changes in wetted area, depth, and velocity.
For this part of the study, USGS:
4. Effects of Beaver Activity on Water Quality
Beaver dams and ponds alter the movement and storage of water as well as the water quality in a stream reach. To date, little work has been done to quantify the effects of beaver activity on water quality in urban streams.
Beaver dams and ponds alter the movement and storage of water as well as the water quality in a stream reach. To date, little work has been done to quantify the effects of beaver activity on water quality in urban streams.
5. Effects of Beaver Dams on Sediment Transport
Beaver dams and associated ponding affect sediment transport and trapping by pushing water onto the floodplain and decreasing stream velocity, allowing for increased sediment deposition.
Beaver dams and associated ponding affect sediment transport and trapping by pushing water onto the floodplain and decreasing stream velocity, allowing for increased sediment deposition.
Effects of beaver dams on urban streams in the Tualatin River Basin
Poster: Within Our Reach (2016)
White, J., Jones, K., Buccola, N., Costello, A., Poor, E., Rounds, S.A., and Smith, C., 2016, Effects of beaver dams on urban streams in the Tualatin River Basin.
Poster: Within Our Reach (2016)
White, J., Jones, K., Buccola, N., Costello, A., Poor, E., Rounds, S.A., and Smith, C., 2016, Effects of beaver dams on urban streams in the Tualatin River Basin.
Plankton response to low dissolved oxygen in the Tualatin River
Poster for Tualatin plankton study.
Carpenter, K.D. and Rounds, S.A., 2014, Plankton communities and summertime declines in algal abundance associated with low dissolved oxygen in the Tualatin River, Oregon.
Poster for Tualatin plankton study.
Carpenter, K.D. and Rounds, S.A., 2014, Plankton communities and summertime declines in algal abundance associated with low dissolved oxygen in the Tualatin River, Oregon.
Monitoring water in Wapato Lake WIldlife Refuge, Oregon
Poster for Wapato Lake Monitoring Project.
Rounds, S.A., 2014, Monitoring streamflow, water levels, and water quality in the Wapato Lake National Wildlife Refuge, Oregon.
Poster for Wapato Lake Monitoring Project.
Rounds, S.A., 2014, Monitoring streamflow, water levels, and water quality in the Wapato Lake National Wildlife Refuge, Oregon.
Sources, sinks, and transport of organic matter in Fanno Creek
Poster for organic matter study along Fanno Creek.
Keith, M., Sobieszczyk, S., Rounds, S., and Goldman, J., 2014, Sources, sinks, and transport of organic matter with fine sediment along an urban stream.
Poster for organic matter study along Fanno Creek.
Keith, M., Sobieszczyk, S., Rounds, S., and Goldman, J., 2014, Sources, sinks, and transport of organic matter with fine sediment along an urban stream.
What's in Our Water?
In this episode, we are going to investigate more than just the substance "water." We are going to examine what is in our nations' water, how we at the U.S. Geological Survey monitor it, and what tools we have developed to aid those who want to explore more about our planet's most abundant resource. This is the USGS Oregon Science Podcast.
In this episode, we are going to investigate more than just the substance "water." We are going to examine what is in our nations' water, how we at the U.S. Geological Survey monitor it, and what tools we have developed to aid those who want to explore more about our planet's most abundant resource. This is the USGS Oregon Science Podcast.
What's in Our Water?
In this episode, we are going to investigate more than just the substance "water." We are going to examine what is in our nations' water, how we at the U.S. Geological Survey monitor it, and what tools we have developed to aid those who want to explore more about our planet's most abundant resource. This is the USGS CoreCast.
In this episode, we are going to investigate more than just the substance "water." We are going to examine what is in our nations' water, how we at the U.S. Geological Survey monitor it, and what tools we have developed to aid those who want to explore more about our planet's most abundant resource. This is the USGS CoreCast.