Francis Parchaso (Former Employee)
Science and Products
Filter Total Items: 50
Sediment remobilization of Mercury in South San Francisco Bay, California Sediment remobilization of Mercury in South San Francisco Bay, California
No abstract available.
Authors
Brent R. Topping, James S. Kuwabara, Mark C. Marvin-DisPasquale, Jennifer L. Agee, Le H. Kieu, John R. Flanders, Francis Parcheso, Stephen W. Hager, Cary B. Lopez, David P. Krabbenhoft
Lessons learned about metals in the estuary: The importance of long-term clam accumulation data Lessons learned about metals in the estuary: The importance of long-term clam accumulation data
No abstract available.
Authors
C. L. Brown, Samuel N. Luoma, Francis Parchaso, Janet K. Thompson
Near-field receiving water monitoring of a benthic community near the Palo Alto Water Quality Control Plant in south San Francisco Bay: February 1974 through December 2003 Near-field receiving water monitoring of a benthic community near the Palo Alto Water Quality Control Plant in south San Francisco Bay: February 1974 through December 2003
Analyses of the benthic community structure of a mudflat in South San Francisco Bay over a 29-year period show that changes in the community have occurred concurrent with reduced concentrations of metals in the sediment and in the tissues of the biosentinal clam Macoma balthica from the same area. The community has shifted from being dominated by several opportunistic species to a...
Authors
Michelle K. Shouse, Francis Parcheso, Janet K. Thompson
Assessing toxicant effects in a complex estuary--A case study of effects of silver on reproduction in the bivalve, Potamocurbula amurensis, in San Francisco Bay Assessing toxicant effects in a complex estuary--A case study of effects of silver on reproduction in the bivalve, Potamocurbula amurensis, in San Francisco Bay
Contaminant exposures in natural systems can be highly variable. This variability is superimposed upon cyclic variability in biological processes. Together, these factors can confound determination of contaminant effects. Long term, multidisciplined studies with high frequency sampling can be effective in overcoming such obstacles. While studying trace metal contamination in the tissues...
Authors
Cynthia L. Brown, Francis Parchaso, Janet K. Thompson, Samuel N. Luoma
Sediment-water interactions affecting dissolved-mercury distributions in Camp Far West Reservoir, California Sediment-water interactions affecting dissolved-mercury distributions in Camp Far West Reservoir, California
No abstract available.
Authors
James S. Kuwabara, Charles N. Alpers, Mark Marvin-DiPasquale, Brent R. Topping, James L. Carter, A. Robin Stewart, Steven V. Fend, Francis Parcheso, Gerald E. Moon, David P. Krabbenhoft
Near-field receiving water monitoring of a benthic community near the Palo Alto Water Quality Control Plant in South San Francisco Bay: February 1974 through December 2002 Near-field receiving water monitoring of a benthic community near the Palo Alto Water Quality Control Plant in South San Francisco Bay: February 1974 through December 2002
Analyses of the benthic community structure over a 28-year period show that changes in the community have occurred concurrent with reduced concentrations of metals in the sediment and in the tissues of the biosentinal clam Macoma balthica from the same area. The community has shifted from being dominated by several opportunistic species to a community where the species are more similar...
Authors
Michelle K. Shouse, Francis Parcheso, Janet K. Thompson
Science and Products
Filter Total Items: 50
Sediment remobilization of Mercury in South San Francisco Bay, California Sediment remobilization of Mercury in South San Francisco Bay, California
No abstract available.
Authors
Brent R. Topping, James S. Kuwabara, Mark C. Marvin-DisPasquale, Jennifer L. Agee, Le H. Kieu, John R. Flanders, Francis Parcheso, Stephen W. Hager, Cary B. Lopez, David P. Krabbenhoft
Lessons learned about metals in the estuary: The importance of long-term clam accumulation data Lessons learned about metals in the estuary: The importance of long-term clam accumulation data
No abstract available.
Authors
C. L. Brown, Samuel N. Luoma, Francis Parchaso, Janet K. Thompson
Near-field receiving water monitoring of a benthic community near the Palo Alto Water Quality Control Plant in south San Francisco Bay: February 1974 through December 2003 Near-field receiving water monitoring of a benthic community near the Palo Alto Water Quality Control Plant in south San Francisco Bay: February 1974 through December 2003
Analyses of the benthic community structure of a mudflat in South San Francisco Bay over a 29-year period show that changes in the community have occurred concurrent with reduced concentrations of metals in the sediment and in the tissues of the biosentinal clam Macoma balthica from the same area. The community has shifted from being dominated by several opportunistic species to a...
Authors
Michelle K. Shouse, Francis Parcheso, Janet K. Thompson
Assessing toxicant effects in a complex estuary--A case study of effects of silver on reproduction in the bivalve, Potamocurbula amurensis, in San Francisco Bay Assessing toxicant effects in a complex estuary--A case study of effects of silver on reproduction in the bivalve, Potamocurbula amurensis, in San Francisco Bay
Contaminant exposures in natural systems can be highly variable. This variability is superimposed upon cyclic variability in biological processes. Together, these factors can confound determination of contaminant effects. Long term, multidisciplined studies with high frequency sampling can be effective in overcoming such obstacles. While studying trace metal contamination in the tissues...
Authors
Cynthia L. Brown, Francis Parchaso, Janet K. Thompson, Samuel N. Luoma
Sediment-water interactions affecting dissolved-mercury distributions in Camp Far West Reservoir, California Sediment-water interactions affecting dissolved-mercury distributions in Camp Far West Reservoir, California
No abstract available.
Authors
James S. Kuwabara, Charles N. Alpers, Mark Marvin-DiPasquale, Brent R. Topping, James L. Carter, A. Robin Stewart, Steven V. Fend, Francis Parcheso, Gerald E. Moon, David P. Krabbenhoft
Near-field receiving water monitoring of a benthic community near the Palo Alto Water Quality Control Plant in South San Francisco Bay: February 1974 through December 2002 Near-field receiving water monitoring of a benthic community near the Palo Alto Water Quality Control Plant in South San Francisco Bay: February 1974 through December 2002
Analyses of the benthic community structure over a 28-year period show that changes in the community have occurred concurrent with reduced concentrations of metals in the sediment and in the tissues of the biosentinal clam Macoma balthica from the same area. The community has shifted from being dominated by several opportunistic species to a community where the species are more similar...
Authors
Michelle K. Shouse, Francis Parcheso, Janet K. Thompson