A5026592138- Fish Ecology and Management Studies
- Hydrology and Sediment Transport Processes
- Hydrology and Watershed Management Studies
- Ecology and biodiversity studies
- Aquatic Invertebrate Ecology and Behavior
- Soil erosion and sediment transport
- Soil and Water Nutrient Dynamics
- Marine and fisheries research
- Water Quality and Resources Studies
- Peatlands and Wetlands Ecology
- Geological formations and processes
- Sports, Gender, and Society
- Archaeology and Natural History
- Coastal and Marine Dynamics
- Wildlife Ecology and Conservation
- Environmental DNA in Biodiversity Studies
- Flood Risk Assessment and Management
- Marine Bivalve and Aquaculture Studies
- Sport and Mega-Event Impacts
- Ocean Acidification Effects and Responses
- Transboundary Water Resource Management
National Oceanic and Atmospheric Administration
2018-2023
NOAA National Marine Fisheries Service Northwest Fisheries Science Center
2021-2023
OAI Consulting (United States)
2022-2023
NOAA National Marine Fisheries Service
2018-2023
Pace University
2023
NOAA National Marine Fisheries Service Southwest Fisheries Science Center
2018-2021
University of California, Santa Cruz
2018-2021
California State University, Monterey Bay
2013
Introduction Understanding how abundance, productivity and distribution of individual species may respond to climate change is a critical first step towards anticipating alterations in marine ecosystem structure function, as well developing strategies adapt the full range potential changes. Methods This study applies NOAA (National Oceanic Atmospheric Administration) Fisheries Climate Vulnerability Assessment method 64 federally-managed California Current Large Marine Ecosystem assess their...
Abstract A pressing question for managing recovery of depressed or declining species is: Can habitat restoration increase resilience to climate change? We addressed this salmon populations with varying life histories, where is defined as maintaining increasing population size despite change effects. Previous studies indicate that several interrelated mechanisms may influence change, including improving either capacity productivity, and ameliorating effects on flood flow, low stream...
Abstract Dam removal provides a valuable opportunity to measure the fluvial response changes in both sediment supply and processes that shape channel morphology. We present first study of river large (32‐m‐high) dam Mediterranean hydroclimatic setting, on Carmel River, coastal California, USA. This before‐after/control‐impact measured topography, grain size, salmonid spawning habitat throughout subsequent major floods. During removal, course was re‐routed order leave most impounded...
An investigation into the causes of species decline should include examination habitats important for multiple life stages. Integrating habitat impacts across stages with life-cycle models (LCMs) can reveal impairments inhibiting recovery and help guide restoration efforts. As part final elements Habitat Restoration Planning model (HARP; Beechie et al. this volume), we developed LCMs four populations three anadromous salmonids ( Oncorhynchus kisutch , O . tshawytscha mykiss ), ran diagnostic...
Abstract Large‐scale river restoration programs have emerged recently as a tool for improving spawning habitat native salmonids in highly altered ecosystems. Few studies quantified the extent to which restored is utilized by salmonids, features influence redd site selection, or persistence of over time. We investigated fall‐run Chinook salmon utilization and measured modeled corresponding characteristics two reaches: reach channel floodplain enhancement completed 2013 reconfigured...
Over the last three decades, passive integrated transponder (PIT) tags have been widely used to study fish populations. Interpretation of PIT tag detections, however, can be confounded by presence ghost tags, liberated when a dies. We combination mobile antenna surveys, stationary and multistate mark–recapture modeling assess abundance fate in coastal California watershed. Accumulation from released hatchery-origin coho salmon (Oncorhynchus kisutch) smolts was substantial during California’s...
Stream temperatures in the Pacific Northwest are projected to increase with climate change, placing additional stress on cold-water salmonids. We modeled potential impact of increased stream four anadromous salmonid populations Chehalis River Basin (spring-run and fall-run Chinook salmon Oncorhynchus tshawytscha, coho O. kisutch, steelhead mykiss), as well for floodplain reconnection shade restoration offset effects future temperature increases. In Basin, peak summer predicted by much 3°C...
Identifying necessary stream and watershed restoration actions requires quantifying natural potential habitat conditions to diagnose change evaluate potential. We used three general methods of potential: historical maps survey notes, contemporary reference sites, models. Historical information was available only for the floodplain analysis. sites estimate wood abundance, riparian shade, main channel length, side length. For fine sediment, temperature, beaver ponds we relied on estimated a...
Abstract Historically, anadromous steelhead Oncorhynchus mykiss and spring‐run Chinook Salmon O. tshawytscha used high‐elevation rivers in the Sierra Nevada of California but were extirpated 20th century by construction impassable dams. Plans to reintroduce fish opening migratory passage across dams reservoirs can only succeed if upstream habitats have capacity support viable populations each species. To estimate Tuolumne Merced central Nevada, we a high‐resolution approach based on remote...
In the Pacific Northwest, USA, climate change is expected to result in a shift average hydrologic conditions and increase variability. The relative vulnerabilities peak flow changes among salmonid species within same basin have not been widely evaluated. We assessed impacts of predicted increases flows on four populations Chehalis River basin. Coupling observations flows, emissions projections, multi-stage Beverton–Holt matrix-type life cycle models, we ran 100-year simulations spawner...
Yellowbank Creek is a small stream in coastal central California being assessed for salmonid habitat limiting factors and restoration potential. flows through low-density marine mudstone bedrock, which the gravel source stream. To assess potential effects of substrate on spawning gravels, tracer stone study comparing incipient motion particles typical density granitic was used to populate logistic regression particle entrainment model. A model comparison approach test strength Results...