Lisa V. Lucas
Lisa Lucas is a Research General Engineer with the USGS Water Resources Mission Area.
- Performs mathematical modeling and data analysis for assessments, understanding, and prediction of water availability.
- Develops and applies mathematical models to understand and predict water flow, mixing, and water quality in surface water systems.
Science and Products
Filter Total Items: 32
Shallow water processes govern system-wide phytoplankton bloom dynamics: A modeling study Shallow water processes govern system-wide phytoplankton bloom dynamics: A modeling study
A pseudo-two-dimensional numerical model of estuarine phytoplankton growth and consumption, vertical turbulent mixing, and idealized cross-estuary transport was developed and applied to South San Francisco Bay. This estuary has two bathymetrically distinct habitat types (deep channel, shallow shoal) and associated differences in local net rates of phytoplankton growth and consumption, as...
Authors
L.V. Lucas, Jeffrey Koseff, Stephen G. Monismith, J.K. Thompson
Shallow water processes govern system-wide phytoplankton bloom dynamics: A field study Shallow water processes govern system-wide phytoplankton bloom dynamics: A field study
Prior studies of the phytoplankton dynamics in South San Francisco Bay, California, USA have hypothesized that bivalve filter-feeders are responsible for the limited phytoplankton blooms in the system. This study was designed to examine the effects of benthic grazing and light attenuation on this shallow, turbid, and nutrient replete system. We found that grazing by shallow water...
Authors
J.K. Thompson, Jeffrey Koseff, Stephen G. Monismith, L.V. Lucas
Population density, biomass, and age-class structure of the invasive clam Corbicula fluminea in rivers of the lower San Joaquin River watershed, California Population density, biomass, and age-class structure of the invasive clam Corbicula fluminea in rivers of the lower San Joaquin River watershed, California
Corbicula fluminea is well known as an invasive filter-feeding freshwater bivalve with a variety of effects on ecosystem processes. However, C. fluminea has been relatively unstudied in the rivers of the western United States. In June 2003, we sampled C. fluminea at 16 sites in the San Joaquin River watershed of California, which was invaded by C. fluminea in the 1940s. Corbicula...
Authors
Larry Brown, Janet Thompson, K. Higgins, Lisa Lucas
Intradaily variability of water quality in a shallow tidal lagoon: Mechanisms and implications Intradaily variability of water quality in a shallow tidal lagoon: Mechanisms and implications
Although surface water quality and its underlying processes vary over time scales ranging from seconds to decades, they have historically been studied at the lower (weekly to interannual) frequencies. The aim of this study was to investigate intradaily variability of three water quality parameters in a small freshwater tidal lagoon (Mildred Island, California). High frequency time series...
Authors
L.V. Lucas, D.M. Sereno, J.R. Burau, T.S. Schraga, C.B. Lopez, M.T. Stacey, K.V. Parchevsky, V.P. Parchevsky
Ecological values of shallow-water habitats: Implications for the restoration of disturbed ecosystems Ecological values of shallow-water habitats: Implications for the restoration of disturbed ecosystems
A presumed value of shallow-habitat enhanced pelagic productivity derives from the principle that in nutrient-rich aquatic systems phytoplankton growth rate is controlled by light availability, which varies inversely with habitat depth. We measured a set of biological indicators across the gradient of habitat depth within the Sacramento–San Joaquin River Delta (California) to test the...
Authors
C.B. Lopez, J. E. Cloern, T.S. Schraga, A.J. Little, L.V. Lucas, J.K. Thompson, J.R. Burau
Effects of spatial and temporal variability of turbidity on phytoplankton blooms Effects of spatial and temporal variability of turbidity on phytoplankton blooms
A central challenge of coastal ecology is sorting out the interacting spatial and temporal components of environmental variability that combine to drive changes in phytoplankton biomass. For 2 decades, we have combined sustained observation and experimentation in South San Francisco Bay (SSFB) with numerical modeling analyses to search for general principles that define phytoplankton...
Authors
Christine May, Jeffrey Koseff, Lisa Lucas, James Cloern, David H. Schoellhamer
Science and Products
Filter Total Items: 32
Shallow water processes govern system-wide phytoplankton bloom dynamics: A modeling study Shallow water processes govern system-wide phytoplankton bloom dynamics: A modeling study
A pseudo-two-dimensional numerical model of estuarine phytoplankton growth and consumption, vertical turbulent mixing, and idealized cross-estuary transport was developed and applied to South San Francisco Bay. This estuary has two bathymetrically distinct habitat types (deep channel, shallow shoal) and associated differences in local net rates of phytoplankton growth and consumption, as...
Authors
L.V. Lucas, Jeffrey Koseff, Stephen G. Monismith, J.K. Thompson
Shallow water processes govern system-wide phytoplankton bloom dynamics: A field study Shallow water processes govern system-wide phytoplankton bloom dynamics: A field study
Prior studies of the phytoplankton dynamics in South San Francisco Bay, California, USA have hypothesized that bivalve filter-feeders are responsible for the limited phytoplankton blooms in the system. This study was designed to examine the effects of benthic grazing and light attenuation on this shallow, turbid, and nutrient replete system. We found that grazing by shallow water...
Authors
J.K. Thompson, Jeffrey Koseff, Stephen G. Monismith, L.V. Lucas
Population density, biomass, and age-class structure of the invasive clam Corbicula fluminea in rivers of the lower San Joaquin River watershed, California Population density, biomass, and age-class structure of the invasive clam Corbicula fluminea in rivers of the lower San Joaquin River watershed, California
Corbicula fluminea is well known as an invasive filter-feeding freshwater bivalve with a variety of effects on ecosystem processes. However, C. fluminea has been relatively unstudied in the rivers of the western United States. In June 2003, we sampled C. fluminea at 16 sites in the San Joaquin River watershed of California, which was invaded by C. fluminea in the 1940s. Corbicula...
Authors
Larry Brown, Janet Thompson, K. Higgins, Lisa Lucas
Intradaily variability of water quality in a shallow tidal lagoon: Mechanisms and implications Intradaily variability of water quality in a shallow tidal lagoon: Mechanisms and implications
Although surface water quality and its underlying processes vary over time scales ranging from seconds to decades, they have historically been studied at the lower (weekly to interannual) frequencies. The aim of this study was to investigate intradaily variability of three water quality parameters in a small freshwater tidal lagoon (Mildred Island, California). High frequency time series...
Authors
L.V. Lucas, D.M. Sereno, J.R. Burau, T.S. Schraga, C.B. Lopez, M.T. Stacey, K.V. Parchevsky, V.P. Parchevsky
Ecological values of shallow-water habitats: Implications for the restoration of disturbed ecosystems Ecological values of shallow-water habitats: Implications for the restoration of disturbed ecosystems
A presumed value of shallow-habitat enhanced pelagic productivity derives from the principle that in nutrient-rich aquatic systems phytoplankton growth rate is controlled by light availability, which varies inversely with habitat depth. We measured a set of biological indicators across the gradient of habitat depth within the Sacramento–San Joaquin River Delta (California) to test the...
Authors
C.B. Lopez, J. E. Cloern, T.S. Schraga, A.J. Little, L.V. Lucas, J.K. Thompson, J.R. Burau
Effects of spatial and temporal variability of turbidity on phytoplankton blooms Effects of spatial and temporal variability of turbidity on phytoplankton blooms
A central challenge of coastal ecology is sorting out the interacting spatial and temporal components of environmental variability that combine to drive changes in phytoplankton biomass. For 2 decades, we have combined sustained observation and experimentation in South San Francisco Bay (SSFB) with numerical modeling analyses to search for general principles that define phytoplankton...
Authors
Christine May, Jeffrey Koseff, Lisa Lucas, James Cloern, David H. Schoellhamer