James S. Kuwabara, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 33
Time scales of change in chemical and biological parameters after engineered levee breaches adjacent to Upper Klamath and Agency Lakes, Oregon Time scales of change in chemical and biological parameters after engineered levee breaches adjacent to Upper Klamath and Agency Lakes, Oregon
Eight sampling trips were coordinated after engineered levee breaches hydrologically reconnected both Upper Klamath Lake and Agency Lake, Oregon, to adjacent wetlands. The reconnection, by a series of explosive blasts, was coordinated by The Nature Conservancy to reclaim wetlands that had for approximately seven decades been leveed for crop production. Sets of nonmetallic porewater...
Authors
James S. Kuwabara, Brent R. Topping, James L. Carter, Tamara M. Wood, Francis Parcheso, Jason M. Cameron, Jessica R. Asbill, Rick A. Carlson, Steven V. Fend
The transition of benthic nutrient sources after planned levee breaches adjacent to upper Klamath and Agency Lakes, Oregon The transition of benthic nutrient sources after planned levee breaches adjacent to upper Klamath and Agency Lakes, Oregon
Four sampling trips were coordinated after planned levee breaches that hydrologically reconnected both Upper Klamath Lake and Agency Lake, Oregon, to adjacent wetlands. Sets of nonmetallic pore-water profilers were deployed during these trips in November 2007, June 2008, May 2009, and July 2009. Deployments temporally spanned the annual cyanophyte bloom of Aphanizomenon flos-aquae (AFA)...
Authors
James S. Kuwabara, Brent R. Topping, James L. Carter, Francis Parchaso, Jason M. Cameron, Jessica R. Asbill, Steven V. Fend, John H. Duff, Anita C. Engelstad
Benthic oxygen demand in three former salt ponds adjacent to south San Francisco Bay, California Benthic oxygen demand in three former salt ponds adjacent to south San Francisco Bay, California
Sampling trips were coordinated in the second half of 2008 to examine the interstitial water in the sediment and the overlying bottom waters of three shallow (average depth 2 meters). The water column at all deployment sites was monitored with dataloggers for ancillary water-quality parameters (including dissolved oxygen, salinity, specific conductance, temperature, and pH) to facilitate...
Authors
Brent R. Topping, James S. Kuwabara, Nicole D. Athearn, John Y. Takekawa, Francis Parcheso, Kathleen D. Henderson, Sara Piotter
Benthic flux of nutrients and trace metals in the northern component of San Francisco Bay, California Benthic flux of nutrients and trace metals in the northern component of San Francisco Bay, California
Two sets of sampling trips were coordinated in late summer 2008 (weeks of July 8 and August 6) to sample the interstitial and overlying bottom waters at 10 shallow locations (9 sites
Authors
James S. Kuwabara, Brent R. Topping, Francis Parcheso, Anita C. Engelstad, Valerie E. Greene
Quantifying the benthic source of nutrients to the water column of Upper Klamath Lake, Oregon Quantifying the benthic source of nutrients to the water column of Upper Klamath Lake, Oregon
Executive Summary Five sampling trips were coordinated in April, May and August 2006, and May and July 2007 to sample the water column and benthos of Upper Klamath Lake, OR (Fig. 1; Table 1), before, during and after the annual cyanophyte bloom of Aphanizomenon flos-aquae (AFA). A pore-water profiler was designed and fabricated to obtain the first high-resolution (centimeter-scale)...
Authors
James S. Kuwabara, Dennis D. Lynch, Brent R. Topping, Fred Murphy, James L. Carter, Nancy S. Simon, Francis Parcheso, Tamara M. Wood, Mary K. Lindenberg, Katryn Wiese, Ronald J. Avanzino
Free zinc ion and dissolved orthophosphate effects on phytoplankton from Coeur d'Alene Lake, Idaho Free zinc ion and dissolved orthophosphate effects on phytoplankton from Coeur d'Alene Lake, Idaho
Coeur d'Alene Lake in northern Idaho is fed by two major rivers: the Coeur d'Alene River from the east and the St. Joe River from the south, with the Spokane River as its outlet to the north. This phosphorus-limited lake has been subjected to decades of mining (primarily for zinc and silver) and other anthropogenic inputs. A 32 full-factorial experimental design was used to examine the
Authors
James S. Kuwabara, Brent R. Topping, Paul F. Woods, James L. Carter
Non-USGS Publications**
Takekawa, J.Y., Ackerman, J.T., Brand, L.A., Graham, T.R., Eagles-Smith, C.A., Herzog, M.P., Topping, B.R., Shellenbarger, G.G., Kuwabara, J.S., Mruz, E., Piotter, S.L., Athearn. N.D., 2015, Unintended consequences of management actions in salt pond restoration: cascading effects in trophic interactions: Plos One: 10: e0119345. doi:10.1371/journal.pone.0119345
Topping, B.R., Kuwabara, J.S., Carter, J.L., Garrett, K.K., Mruz, E., Piotter, S., Takekawa, J.Y., 2016, Effects of salt pond restoration on benthic flux: sediment as a source of nutrients to the water column: Journal of Environmental Protection, v. 7, p. 1064-1071, DOI: 10.4236/jep.2016.77095, https://pubs.er.usgs.gov/publication/70174041.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Filter Total Items: 33
Time scales of change in chemical and biological parameters after engineered levee breaches adjacent to Upper Klamath and Agency Lakes, Oregon Time scales of change in chemical and biological parameters after engineered levee breaches adjacent to Upper Klamath and Agency Lakes, Oregon
Eight sampling trips were coordinated after engineered levee breaches hydrologically reconnected both Upper Klamath Lake and Agency Lake, Oregon, to adjacent wetlands. The reconnection, by a series of explosive blasts, was coordinated by The Nature Conservancy to reclaim wetlands that had for approximately seven decades been leveed for crop production. Sets of nonmetallic porewater...
Authors
James S. Kuwabara, Brent R. Topping, James L. Carter, Tamara M. Wood, Francis Parcheso, Jason M. Cameron, Jessica R. Asbill, Rick A. Carlson, Steven V. Fend
The transition of benthic nutrient sources after planned levee breaches adjacent to upper Klamath and Agency Lakes, Oregon The transition of benthic nutrient sources after planned levee breaches adjacent to upper Klamath and Agency Lakes, Oregon
Four sampling trips were coordinated after planned levee breaches that hydrologically reconnected both Upper Klamath Lake and Agency Lake, Oregon, to adjacent wetlands. Sets of nonmetallic pore-water profilers were deployed during these trips in November 2007, June 2008, May 2009, and July 2009. Deployments temporally spanned the annual cyanophyte bloom of Aphanizomenon flos-aquae (AFA)...
Authors
James S. Kuwabara, Brent R. Topping, James L. Carter, Francis Parchaso, Jason M. Cameron, Jessica R. Asbill, Steven V. Fend, John H. Duff, Anita C. Engelstad
Benthic oxygen demand in three former salt ponds adjacent to south San Francisco Bay, California Benthic oxygen demand in three former salt ponds adjacent to south San Francisco Bay, California
Sampling trips were coordinated in the second half of 2008 to examine the interstitial water in the sediment and the overlying bottom waters of three shallow (average depth 2 meters). The water column at all deployment sites was monitored with dataloggers for ancillary water-quality parameters (including dissolved oxygen, salinity, specific conductance, temperature, and pH) to facilitate...
Authors
Brent R. Topping, James S. Kuwabara, Nicole D. Athearn, John Y. Takekawa, Francis Parcheso, Kathleen D. Henderson, Sara Piotter
Benthic flux of nutrients and trace metals in the northern component of San Francisco Bay, California Benthic flux of nutrients and trace metals in the northern component of San Francisco Bay, California
Two sets of sampling trips were coordinated in late summer 2008 (weeks of July 8 and August 6) to sample the interstitial and overlying bottom waters at 10 shallow locations (9 sites
Authors
James S. Kuwabara, Brent R. Topping, Francis Parcheso, Anita C. Engelstad, Valerie E. Greene
Quantifying the benthic source of nutrients to the water column of Upper Klamath Lake, Oregon Quantifying the benthic source of nutrients to the water column of Upper Klamath Lake, Oregon
Executive Summary Five sampling trips were coordinated in April, May and August 2006, and May and July 2007 to sample the water column and benthos of Upper Klamath Lake, OR (Fig. 1; Table 1), before, during and after the annual cyanophyte bloom of Aphanizomenon flos-aquae (AFA). A pore-water profiler was designed and fabricated to obtain the first high-resolution (centimeter-scale)...
Authors
James S. Kuwabara, Dennis D. Lynch, Brent R. Topping, Fred Murphy, James L. Carter, Nancy S. Simon, Francis Parcheso, Tamara M. Wood, Mary K. Lindenberg, Katryn Wiese, Ronald J. Avanzino
Free zinc ion and dissolved orthophosphate effects on phytoplankton from Coeur d'Alene Lake, Idaho Free zinc ion and dissolved orthophosphate effects on phytoplankton from Coeur d'Alene Lake, Idaho
Coeur d'Alene Lake in northern Idaho is fed by two major rivers: the Coeur d'Alene River from the east and the St. Joe River from the south, with the Spokane River as its outlet to the north. This phosphorus-limited lake has been subjected to decades of mining (primarily for zinc and silver) and other anthropogenic inputs. A 32 full-factorial experimental design was used to examine the
Authors
James S. Kuwabara, Brent R. Topping, Paul F. Woods, James L. Carter
Non-USGS Publications**
Takekawa, J.Y., Ackerman, J.T., Brand, L.A., Graham, T.R., Eagles-Smith, C.A., Herzog, M.P., Topping, B.R., Shellenbarger, G.G., Kuwabara, J.S., Mruz, E., Piotter, S.L., Athearn. N.D., 2015, Unintended consequences of management actions in salt pond restoration: cascading effects in trophic interactions: Plos One: 10: e0119345. doi:10.1371/journal.pone.0119345
Topping, B.R., Kuwabara, J.S., Carter, J.L., Garrett, K.K., Mruz, E., Piotter, S., Takekawa, J.Y., 2016, Effects of salt pond restoration on benthic flux: sediment as a source of nutrients to the water column: Journal of Environmental Protection, v. 7, p. 1064-1071, DOI: 10.4236/jep.2016.77095, https://pubs.er.usgs.gov/publication/70174041.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.