Brent Topping

Brent Topping

Hydrologist

WATER

Email: btopping@usgs.gov
Phone: 650-329-5527
Fax: 650-329-4463

Address:
345 Middlefield Road
Menlo Park, CA 94025


Expertise

Biography

Publications

Topping, B.R. Kuwabara, J.S., Garrett, K.K., Takekawa, J.Y., Parchaso, F., Piotter, S., Clearwater, I., and Shellenbarger, G.G., 2013, Internal Nutrient Sources and Dissolved Nutrient Distributions in Alviso Salt Pond A3W, California: U.S. Geological Survey Open-file Report 2013-1128, 31 p. [Link]

Kuwabara, J.S., Topping, B.R., Carter, J.L., Wood, T.M., Parchaso, F., Cameron, J.M., Asbill, J.R., Carlson, R.A., and Fend, S.V., 2012, Time scales of change in chemical and biological parameters after engineered levee breaches adjacent to Upper Klamath and Agency Lakes, Oregon: U.S. Geological Survey Open-File Report 2012-1057, 42 p. [Link]

Kuwabara, J.S., Topping, B.R., Carter, J.L., Wood, T.M., Cameron, J.M., Asbill-Case, J.R., and Carlson, R.A., 2012, Changes in benthic nutrient sources within a wetland after hydrologic reconnection: Environmental Toxicology & Chemistry, v. 31, 1995-2013 [Link]

Kuwabara, James S.; Topping, Brent R.; Carter, James L.; Parchaso, Francis; Cameron, Jason M.; Asbill, Jessica R.; Fend, Steven V.; Duff, John H.; Engelstad, Anita C., 2010. The Transition of Benthic Nutrient Sources after Planned Levee Breaches Adjacent to Upper Klamath and Agency Lakes, Oregon. U.S. Geological Survey Open-File Report 2010-1062, Report: iv, 18 p.; tables; video file folder [Link]

Kuwabara, James S. ; Topping, Brent R. ; Parchaso, Francis ; Engelstad, Anita C. ; Greene, Valerie E. , 2009. Benthic flux of nutrients and trace metals in the northern component of San Francisco Bay, California. U.S. Geological Survey Open-File Report 2009-1286, iv, 26 p. [Link]

Topping, Brent R.; Kuwabara, James S.; Athearn, Nicole D.; Takekawa, John Y.; Parchaso, Francis; Henderson, Kathleen D.; Piotter, Sara, 2009. Benthic Oxygen Demand in Three Former Salt Ponds Adjacent to South San Francisco Bay, California. U.S. Geological Survey Open-File Report 2009-1180, iv, 21 p. [Link]

Kuwabara, J.S., Topping, B.R., Lynch, D.D., Carter, J.L., Essaid, H.I., 2009, Benthic nutrient sources to hypereutrophic Upper Klamath Lake, Oregon: Environmental Toxicology & Chemistry, v. 28, p. 516-524. [Link]

Alpers, C.N., Stewart, A.R., Saiki, M.K., Marvin-DiPasquale, M.C., Topping, B.R., Rider, K.M., Gallanthine, S.K., Kester, C.A., Rye, R.O., Antweiler, R.C., and De Wild, J.F., 2008, Environmental factors affecting mercury in Camp Far West Reservoir, 2001–03. U.S. Geological Survey Scientific Investigations Report 2006-5008, 358 p. [Link]

Kuwabara, James S.; Lynch, Dennis D.; Topping, Brent R.; Murphy, Fred; Carter, James L.; Simon, Nancy S.; Parchaso, Francis; Wood, Tamara M.; Lindenberg, Mary K.; Wiese, Katryn; Avanzino, Ronald J., 2007. Quantifying the Benthic Source of Nutrients to the Water Column of Upper Klamath Lake, Oregon. Geological Survey (U.S.) Open-File Report 2007-1276, 39 p. [Link]

Kuwabara, J.S., Arai, Yuji, Topping, B.R., Pickering, I. J., and George, G.N., 2007, Mercury speciation in piscivorous fish from mining-impacted reservoirs: Environment Science and Technology, v. 41, No. 8, p. 2745-2749. [Link]

Kuwabara, J.S., Topping, B.R., Woods, P.F., and Carter, J.L., 2007, Free zinc ion and dissolved orthophosphate effects on phytoplankton from Coeur d'Alene Lake, Idaho: Environment Science and Technology, v. 41, No. 8, p. 2811-2817. [Link]

Kuwabara, James S.; Topping, Brent R.; Woods, Paul F.; Carter, James L.; Hager, Stephen W., 2006. Interactive effects of dissolved zinc and orthophosphate on phytoplankton from Coeur d'Alene Lake, Idaho. Scientific Investigations Report 2006-5091, 47 p. [Link]

Kuwabara, James S.; Topping, Brent R.; Moon, Gerald E.; Husby, Peter; Lincoff, Andrew; Carter, James L.; Croteau, Marie-Noele, 2005. Mercury accumulation by lower trophic-level organisms in lentic systems within the Guadalupe River watershed, California. Scientific Investigations Report 2005-5037, 59 p. [Link]

Topping, Brent R.; Kuwabara, James S.; Marvin-DisPasquale, Mark C.; Agee, Jennifer L.; Kieu, Le H.; Flanders, John R.; Parchaso, Francis; Hager, Stephen W.; Lopez, Cary B.; Krabbenhoft, David P., 2004. Sediment remobilization of Mercury in South San Francisco Bay, California. Scientific Investigations Report 2004-5196, 59 p. [Link]

Croteau, M.-N., S.N. Luoma, C. B. Lopez & B.R. Topping. 2004. Stable metal isotopes reveal copper accumulation and loss dynamics in the freshwater bivalve CorbiculaEnviron. Sci. Technol. 38: 5002-5009. [Link]

Kuwabara JS, Alpers CN, Marvin-DiPasquale M, Topping BR, Carter JL, Stewart AR, Fend SV, Parchaso F, Moon GE, Krabbenhoft DP (2003) Sediment-water interactions affecting dissolved-mercury distributions in Camp Far West Reservoir, California. Water Resources Investigation Report 03-4140 61 p. [Link]

Topping, B.R. and Kuwabara, J.S., 2003, Dissolved nickel and benthic flux in south San Francisco Bay: A potential for natural sources to dominate: Bulletin of Environmental Toxicology and Chemistry, v. 71, p. 46-51. [Link]

Kuwabara, J.S., Woods, P.F., Berelson, W.M., Balistrieri, L.S., Carter, J.L., Topping, B.R., Fend, S.V., 2003, Importance of sediment-water interactions in Coeur d’Alene Lake, Idaho: Management Implications: Environmental Management, v. 32, No. 3, p. 348-359. [Link]

Kuwabara, James S.; Marvin-Dipasquale, Mark; Praskins, Wayne; Byron, Earl; Topping, Brent R.; Carter, James L.; Fend, Steven V.; Parchaso, Francis; Krabbenhoft, David P.; Gustin, Mae S., 2002. Flux of Dissolved Forms of Mercury Across the Sediment-water Interface in Lahontan Reservoir, Nevada. U.S. Geological Survey, Water-Resources Investigations Report 2002-4138, 49 p. [Link]

Topping, B. R.; Kuwabara, J. S.; Parchaso, Francis; Hager, S. W.; Arnsberg, A. J.; Murphy, Fred, 2001. Benthic flux of dissolved nickel into the water column of south San Francisco Bay. Open-File Report 2001-89, 50 p. One CD-ROM. [Link]

Kuwabara, James S.; Berelson, William M.; Balistrieri, Laurie S.; Woods, Paul F.; Topping, Brent R.; Steding, Douglas J.; Krabbenhoft, David P., 2000. Benthic flux of metals and nutrients into the water column of Lake Coeur d'Alene, Idaho report of an August, 1999, pilot study. U.S. Geological Survey, Water-Resources Investigations Report 2000-4132, 1 computer optical disc :col. ;4 3/4 in. [Link]

Science and Products

Publications

Filter Total Items: 11
[title_1]
Year Published: 2010

The Transition of Benthic Nutrient Sources after Planned Levee Breaches Adjacent to Upper Klamath and Agency Lakes, Oregon

Kuwabara, James S.; Topping, Brent R.; Carter, James L.; Parcheso, Francis; Cameron, Jason M.; Asbill, Jessica R.; Fend, Steven V.; Duff, John H.; Engelstad, Anita C.
The Transition of Benthic Nutrient Sources after Planned Levee Breaches Adjacent to Upper Klamath and Agency Lakes, Oregon; 2010; OFR; 2010-1062; Kuwabara, James S.; Topping, Brent R.; Carter, James L.; Parchaso, Francis; Cameron, Jason M.; Asbill, Jessica R.; Fend, Steven V.; Duff, John H.; Engelstad, Anita C.
[title_1]
Year Published: 2009

Benthic flux of nutrients and trace metals in the northern component of San Francisco Bay, California

Kuwabara, James S.; Topping, Brent R.; Parcheso, Francis; Engelstad, Anita C.; Greene, Valerie E.
Benthic flux of nutrients and trace metals in the northern component of San Francisco Bay, California; 2009; OFR; 2009-1286; Kuwabara, James S. ; Topping, Brent R. ; Parchaso, Francis ; Engelstad, Anita C. ; Greene, Valerie E.
[title_1]
Year Published: 2009

Benthic Oxygen Demand in Three Former Salt Ponds Adjacent to South San Francisco Bay, California

Topping, Brent R.; Kuwabara, James S.; Athearn, Nicole D.; Takekawa, John Y.; Parcheso, Francis; Henderson, Kathleen D.; Piotter, Sara
Benthic Oxygen Demand in Three Former Salt Ponds Adjacent to South San Francisco Bay, California; 2009; OFR; 2009-1180; Topping, Brent R.; Kuwabara, James S.; Athearn, Nicole D.; Takekawa, John Y.; Parchaso, Francis; Henderson, Kathleen D.; Piotter, Sara
[title_1]
Year Published: 2007

Quantifying the Benthic Source of Nutrients to the Water Column of Upper Klamath Lake, Oregon

Kuwabara, James S.; Lynch, Dennis D.; Topping, Brent R.; Murphy, Fred; Carter, James L.; Simon, Nancy S.; Parcheso, Francis; Wood, Tamara M.; Lindenberg, Mary K.; Wiese, Katryn; Avanzino, Ronald J.
Quantifying the Benthic Source of Nutrients to the Water Column of Upper Klamath Lake, Oregon; 2007; OFR; 2007-1276; Kuwabara, James S.; Lynch, Dennis D.; Topping, Brent R.; Murphy, Fred; Carter, James L.; Simon, Nancy S.; Parchaso, Francis; Wood, Tamara M.; Lindenberg, Mary K.; Wiese, Katryn; Avanzino, Ronald J.
[title_1]
Year Published: 2006

Interactive effects of dissolved zinc and orthophosphate on phytoplankton from Coeur d'Alene Lake, Idaho

Kuwabara, James S.; Topping, Brent R.; Woods, Paul F.; Carter, James L.; Hager, Stephen W.
Interactive effects of dissolved zinc and orthophosphate on phytoplankton from Coeur d'Alene Lake, Idaho; 2006; SIR; 2006-5091; Kuwabara, James S.; Topping, Brent R.; Woods, Paul F.; Carter, James L.; Hager, Stephen W.
[title_1]
Year Published: 2005

Mercury accumulation by lower trophic-level organisms in lentic systems within the Guadalupe River watershed, California

Kuwabara, James S.; Topping, Brent R.; Moon, Gerald E.; Husby, Peter; Lincoff, Andrew; Carter, James L.; Croteau, Marie-Noële
Mercury accumulation by lower trophic-level organisms in lentic systems within the Guadalupe River watershed, California; 2005; SIR; 2005-5037; Kuwabara, James S.; Topping, Brent R.; Moon, Gerald E.; Husby, Peter; Lincoff, Andrew; Carter, James L.; Croteau, Marie-Noele
[title_1]
Year Published: 2004

Sediment remobilization of Mercury in South San Francisco Bay, California

Publication's summary is not available

Topping, Brent R.; Kuwabara, James S.; Marvin-DisPasquale, Mark C.; Agee, Jennifer L.; Kieu, Le H.; Flanders, John R.; Parcheso, Francis; Hager, Stephen W.; Lopez, Cary B.; Krabbenhoft, David P.
Sediment remobilization of Mercury in South San Francisco Bay, California; 2004; SIR; 2004-5196; Topping, Brent R.; Kuwabara, James S.; Marvin-DisPasquale, Mark C.; Agee, Jennifer L.; Kieu, Le H.; Flanders, John R.; Parchaso, Francis; Hager, Stephen W.; Lopez, Cary B.; Krabbenhoft, David P.
[title_1]
Year Published: 2003

Sediment-water interactions affecting dissolved-mercury distributions in Camp Far West Reservoir, California

Kuwabara, James S.; Alpers, Charles N.; Marvin-DiPasquale, Mark; Topping, Brent R.; Carter, James L.; Stewart, A. Robin; Fend, Steven V.; Parcheso, Francis; Moon, Gerald E.; Krabbenhoft, David P.
Sediment-water interactions affecting dissolved-mercury distributions in Camp Far West Reservoir, California; 2003; WRI; 2003-4140; Kuwabara, James S.; Alpers, Charles N.; Marvin-Dipasquale, Mark; Topping, Brent R.; Carter, James L.; Stewart, A. Robin; Fend, Steven V.; Parchaso, Francis; Moon, Gerald E.; Krabbenhoft, David P.
[title_1]
Year Published: 2002

Flux of Dissolved Forms of Mercury Across the Sediment-water Interface in Lahontan Reservoir, Nevada

Kuwabara, James S.; Marvin-DiPasquale, Mark; Praskins, Wayne; Byron, Earl; Topping, Brent R.; Carter, James L.; Fend, Steven V.; Parcheso, Francis; Krabbenhoft, David P.; Gustin, Mae S.
Flux of Dissolved Forms of Mercury Across the Sediment-water Interface in Lahontan Reservoir, Nevada; 2002; WRI; 2002-4138; Kuwabara, James S.; Marvin-Dipasquale, Mark; Praskins, Wayne; Byron, Earl; Topping, Brent R.; Carter, James L.; Fend, Steven V.; Parchaso, Francis; Krabbenhoft, David P.; Gustin, Mae S.
[title_1]
Year Published: 2001

Benthic flux of dissolved nickel into the water column of south San Francisco Bay

Field and laboratory studies were conducted between April, 1998 and May, 1999 to provide the first direct measurements of the benthic flux of dissolved (0.2-micron filtered) nickel between the bottom sediment and water column at three sites in the southern component of San Francisco Bay (South Bay), California. Dissolved nickel and predominant ligands (represented by dissolved organic carbon, and...

Topping, B.R.; Kuwabara, J.S.; Parcheso, Francis; Hager, S.W.; Arnsberg, A.J.; Murphy, Fred
Benthic flux of dissolved nickel into the water column of south San Francisco Bay; 2001; OFR; 2001-89; Topping, B. R.; Kuwabara, J. S.; Parchaso, Francis; Hager, S. W.; Arnsberg, A. J.; Murphy, Fred
[title_1]
Year Published: 2000

Benthic flux of metals and nutrients into the water column of Lake Coeur d'Alene, Idaho report of an August, 1999, pilot study

Kuwabara, James S.; Berelson, William M.; Balistrieri, Laurie S.; Woods, Paul F.; Topping, Brent R.; Steding, Douglas J.; Krabbenhoft, David P.
Benthic flux of metals and nutrients into the water column of Lake Coeur d'Alene, Idaho report of an August, 1999, pilot study; 2000; WRI; 2000-4132; Kuwabara, James S.; Berelson, William M.; Balistrieri, Laurie S.; Woods, Paul F.; Topping, Brent R.; Steding, Douglas J.; Krabbenhoft, David P.