Veronica Violette (Larwood)
Veronica Violette (Larwood) is a Fish Biologist at the California Water Science Center.
Science and Products
Ocean connectivity drives trophic support for consumers in an intermittently closed coastal lagoon
Estuarine food webs are complex, as marine, freshwater, and terrestrial inputs combine and contribute variable amounts of organic material. Seasonal fluctuations in precipitation amplify the dynamism inherent to estuarine food webs, particularly in lagoonal estuaries, which can be seasonally closed and disconnected from the ocean in low-runoff periods (bar-built lagoons). Despite their abundance a
Authors
Matthew J. Young, Frederick V. Feyrer, Darren Fong, Rachel C. Johnson, Tamara E. C. Kraus, Veronica Larwood, Elizabeth B. Stumpner, Megan B. Young
Eye lenses reveal ontogenetic trophic and habitat shifts in an imperiled fish, Clear Lake hitch (Lavinia exilicauda chi)
Stable isotopes recorded in fish eye lenses are an emerging tool to track dietary shifts coincident with use of diverse habitats over the lifetime of individuals. Eye lenses are metabolically inert, sequentially deposited, archival tissues that can open avenues to chronicle contaminant exposures, diet histories, trophic dynamics and migratory histories of individual fishes. In this study, we demon
Authors
Matthew J. Young, Veronica Larwood, Justin Kinsey Clause, Miranda Bell-Tilcock, George Whitman, Rachel C. Johnson, Frederick V. Feyrer
Estuarine habitat use by White Sturgeon (Acipenser transmontanus)
White Sturgeon (Acipenser transmontanus), a species of concern in the San Francisco Estuary, is in relatively low abundance due to a variety of factors. The purpose of our study was to identify the estuarine habitat used by White Sturgeon to aid in the conservation and management of the species locally and across its range. We seasonally sampled sub-adult and adult White Sturgeon in the central e
Authors
Oliver Patton, Veronica Larwood, Matthew J. Young, Frederick V. Feyrer
Hydrodynamics drive pelagic communities and food web structure in a tidal environment
Hydrodynamic processes can lead to the accumulation and/or dispersal of water column constituents, including sediment, phytoplankton, and particulate detritus. Using a combination of field observations and stable isotope tracing tools, we identified how hydrodynamic processes influenced physical habitat, pelagic communities, and food web structure in a freshwater tidal system. The pelagic habitat
Authors
Matthew J. Young, Frederick V. Feyrer, Paul Stumpner, Veronica Larwood, Oliver Patton, Larry R. Brown
Geochemical data for water, sediment, and biota in Lake Combie, California, 2017-2021
This dataset includes field measurements and laboratory analyses of surface water, bottom water (sediment-water interface), surficial (0-2 cm) sediment, pore water (0-2 cm), and biota collected in Lake Combie, California, from September 2017 through August 2021. The study area includes six sites within the reservoir where discrete samples of surface water, bottom water, sediment, and pore water we
Post Carr Fire Bioassessment Data, Whiskeytown National Recreation Area, Shasta County, California, 2020
This data release contains data collected during August 2020 for the post Carr fire Bioassessment project at Whiskeytown National Recreation Area, Shasta County, California. Data includes sediment and habitat characteristics, water chemistry, and biological conditions of tributaries to Whiskeytown Lake and Clear Creek below the dam. Samples were also collected to assess concentrations of metals in
Diets and Stable Isotopes of Fishes in Rodeo Lagoon, California, 2016-2017
This dataset includes lab data for fish, fish diets, and stable isotopes for fish tissue, vegetation, and invertebrates collected during daylight hours in the Rodeo Lagoon and Lake in Golden Gate National Recreation Area at the Pacific Coast, USA during 2016 and 2017. This data release includes all animal taxa, and isotope values included in the analysis.
Physical and Biological Drivers of Fish Populations in the Sacramento Deep Water Shipping Channel, California, 2016-2018
This dataset includes field and lab data for fish, vegetation, zooplankton, phytoplankton, fish diets, and stable isotopes collected during daylight hours in the Sacramento Deep Water Shipping Channel in the Northern Sacramento-San Joaquin Delta, California, USA. This data release includes all measured environmental parameters, animal taxa, and isotope values included in the analysis.
Science and Products
- Publications
Ocean connectivity drives trophic support for consumers in an intermittently closed coastal lagoon
Estuarine food webs are complex, as marine, freshwater, and terrestrial inputs combine and contribute variable amounts of organic material. Seasonal fluctuations in precipitation amplify the dynamism inherent to estuarine food webs, particularly in lagoonal estuaries, which can be seasonally closed and disconnected from the ocean in low-runoff periods (bar-built lagoons). Despite their abundance aAuthorsMatthew J. Young, Frederick V. Feyrer, Darren Fong, Rachel C. Johnson, Tamara E. C. Kraus, Veronica Larwood, Elizabeth B. Stumpner, Megan B. YoungEye lenses reveal ontogenetic trophic and habitat shifts in an imperiled fish, Clear Lake hitch (Lavinia exilicauda chi)
Stable isotopes recorded in fish eye lenses are an emerging tool to track dietary shifts coincident with use of diverse habitats over the lifetime of individuals. Eye lenses are metabolically inert, sequentially deposited, archival tissues that can open avenues to chronicle contaminant exposures, diet histories, trophic dynamics and migratory histories of individual fishes. In this study, we demonAuthorsMatthew J. Young, Veronica Larwood, Justin Kinsey Clause, Miranda Bell-Tilcock, George Whitman, Rachel C. Johnson, Frederick V. FeyrerEstuarine habitat use by White Sturgeon (Acipenser transmontanus)
White Sturgeon (Acipenser transmontanus), a species of concern in the San Francisco Estuary, is in relatively low abundance due to a variety of factors. The purpose of our study was to identify the estuarine habitat used by White Sturgeon to aid in the conservation and management of the species locally and across its range. We seasonally sampled sub-adult and adult White Sturgeon in the central eAuthorsOliver Patton, Veronica Larwood, Matthew J. Young, Frederick V. FeyrerHydrodynamics drive pelagic communities and food web structure in a tidal environment
Hydrodynamic processes can lead to the accumulation and/or dispersal of water column constituents, including sediment, phytoplankton, and particulate detritus. Using a combination of field observations and stable isotope tracing tools, we identified how hydrodynamic processes influenced physical habitat, pelagic communities, and food web structure in a freshwater tidal system. The pelagic habitatAuthorsMatthew J. Young, Frederick V. Feyrer, Paul Stumpner, Veronica Larwood, Oliver Patton, Larry R. Brown - Data
Geochemical data for water, sediment, and biota in Lake Combie, California, 2017-2021
This dataset includes field measurements and laboratory analyses of surface water, bottom water (sediment-water interface), surficial (0-2 cm) sediment, pore water (0-2 cm), and biota collected in Lake Combie, California, from September 2017 through August 2021. The study area includes six sites within the reservoir where discrete samples of surface water, bottom water, sediment, and pore water wePost Carr Fire Bioassessment Data, Whiskeytown National Recreation Area, Shasta County, California, 2020
This data release contains data collected during August 2020 for the post Carr fire Bioassessment project at Whiskeytown National Recreation Area, Shasta County, California. Data includes sediment and habitat characteristics, water chemistry, and biological conditions of tributaries to Whiskeytown Lake and Clear Creek below the dam. Samples were also collected to assess concentrations of metals inDiets and Stable Isotopes of Fishes in Rodeo Lagoon, California, 2016-2017
This dataset includes lab data for fish, fish diets, and stable isotopes for fish tissue, vegetation, and invertebrates collected during daylight hours in the Rodeo Lagoon and Lake in Golden Gate National Recreation Area at the Pacific Coast, USA during 2016 and 2017. This data release includes all animal taxa, and isotope values included in the analysis.Physical and Biological Drivers of Fish Populations in the Sacramento Deep Water Shipping Channel, California, 2016-2018
This dataset includes field and lab data for fish, vegetation, zooplankton, phytoplankton, fish diets, and stable isotopes collected during daylight hours in the Sacramento Deep Water Shipping Channel in the Northern Sacramento-San Joaquin Delta, California, USA. This data release includes all measured environmental parameters, animal taxa, and isotope values included in the analysis.