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Environment shapes invertebrate assemblage structure differences between volcanic spring-fed and runoff rivers in northe...

R A, Lusardi M T, Bogan P B, Moyle R A, Dahlgren

Published in Freshwater Science

Flow variability plays an important role in structuring lotic communities, yet comparatively little is known about processes governing assemblage dynamics in stream ecosystems with stable environmental conditions, such as spring-fed rivers. Volcanic spring-fed rivers (hereafter spring-fed rivers) occur in geologically active landscapes of the weste...

Management of the Spring Snowmelt Recession in Regulated Systems

Sarah Yarnell Ryan Peek Gerhard, Epke Amy, Lind

Published in JAWRA Journal of the American Water Resources Association

In an effort to restore predictable ecologically relevant spring snowmelt recession flow patterns in rivers regulated by dams, this study defined a methodology by which spring flow regimes can be modeled in regulated systems from the quantifiable characteristics of spring snowmelt recessions in unregulated rivers. An analysis of eight unregulated r...

Modeling residual flood risk behind levees, Upper Mississippi River, USA

Nicholas Pinter Fredrik, Huthoff Jennifer, Dierauer W. F., Remo Amanda, Damptz

Published in Environmental Science & Policy

Flood protection from levees is a mixed blessing, excluding water from the floodplain but creating higher flood levels (“surcharges”) and promoting “residual risk” of flood damages. This study completed 2D hydrodynamic modeling and flood-damage analyses for the 459 km2 Sny Island levee system on the Upper Mississippi River. These levees provide lar...

Missing the Boat on Freshwater Fish Conservation in California PDF available through Get Fulltext Research

Theodore E., Grantham Kurt, Fesenmyer Ryan Peek Eric Holmes Rebecca M., Quiñones Andy Bell Nick Santos Jeanette K., Howard Joshua Viers Peter Moyle ...

Published in Conservation Letters

Population growth and increasing water-use pressures threaten Californias freshwater ecosystems and have led many native fishes to the brink of extinction. To guide fish conservation efforts, we provide the first systematic prioritization of river catchments and identify those that disproportionately contribute to fish taxonomic diversity. Using hi...

Vertical redistribution of zooplankton in an oligotrophic lake associated with reduction in ultraviolet radiation by wil... PDF available through Get Fulltext Research

Samuel S., Urmy Craig E., Williamson Taylor H., Leach Geoffrey Schladow Erin P., Overholt Joseph D., Warren

Published in Geophysical Research Letters

We used a natural experiment to test whether wildfire smoke induced changes in the vertical distribution of zooplankton in Lake Tahoe by decreasing incident ultraviolet radiation (UV). Fires have a variety of effects on aquatic ecosystems, but these impacts are poorly understood and have rarely been observed directly. UV is an important driver of z...

Seasonal nearshore sediment resuspension and water clarity at Lake Tahoe PDF available through Get Fulltext Research

Kristin E., Reardon Patricio A., Moreno-Casas Fabián A., Bombardelli Geoffrey Schladow

Published in Lake and Reservoir Management

Reardon KE, Moreno-Casas PA, Bombardelli FA, Schladow SG. 2016 Seasonal nearshore sediment resuspension and water clarity at Lake Tahoe. Lake Reserv Manage. 32:132--145. Motivated by management challenges due to declining water clarity at Lake Tahoe, California–Nevada, we synthesized field observations and modeling of wind-driven nearshore sedim...

Physical controls on the distribution of the submersed aquatic weed Egeria densa in the Sacramento-San Joaquin Delta and... PDF available through Get Fulltext Research

John Durand William Fleenor Richard, Mcelreath Maria, Santos Peter Moyle

Published in San Francisco Estuary and Watershed Science

The invasive aquatic plant Egeria densa (Brazilian waterweed) is a submersed aquatic plant that has expanded its distribution in both its native and introduced range. Because the plant grows so densely, it can become a problem for management of waterways and habitat restoration projects. It is difficult to remove once established and mechanical and...

Sentinel responses to droughts, wildfires, and floods: effects of UV radiation on lakes and their ecosystem services

Williamson, Craig E Overholt, Erin P Brentrup, Jennifer A Pilla, Rachel M Leach, Taylor H Schladow, S Geoffrey Warren, Joseph D Urmy, Samuel S Sadro, Steven Chandra, Sudeep ...

Published in Frontiers in Ecology and the Environment

Life History Diversity in Klamath River Steelhead

Brian W., Hodge Margaret A., Wilzbach Walter G., Duffy Rebecca M., Quiñones James A., Hobbs

Published in Transactions of the American Fisheries Society

Oncorhynchus mykiss exhibits a vast array of life histories, which increases its likelihood of persistence by spreading risk of extirpation among different pathways. The Klamath River basin (California–Oregon) provides a particularly interesting backdrop for the study of life history diversity in O. mykiss, in part because the river is slated for a...

Physical Control of Nonindigenous Aquatic Plants in Emerald Bay

Shaw, Dan W H Zach Hymanson Sasaki, T L

Published in Invasive Plant Science and Management

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