Richard McDonald (Former Employee)
Science and Products
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A broadscale fish-habitat model development process: Genesee Basin, New York A broadscale fish-habitat model development process: Genesee Basin, New York
We describe a methodology for developing species-habitat models using available fish and stream habitat data from New York State, focusing on the Genesee basin. Electrofishing data from the New York Department of Environmental Conservation were standardized and used for model development and testing. Four types of predictive models (multiple linear regression, stepwise multiple linear...
Authors
James E. McKenna, Richard McDonald, Chris Castiglione, Sandy Morrison, Kurt P. Kowalski, Dora Passino
Simulation of flow and sediment mobility using a multidimensional flow model for the White Sturgeon critical-habitat reach, Kootenai River near Bonners Ferry, Idaho Simulation of flow and sediment mobility using a multidimensional flow model for the White Sturgeon critical-habitat reach, Kootenai River near Bonners Ferry, Idaho
In 1994, the Kootenai River white sturgeon (Acipenser transmontanus) was listed as an Endangered Species as a direct result of two related observations. First, biologists observed that the white sturgeon population in the Kootenai River was declining. Second, they observed a decline in recruitment of juvenile sturgeon beginning in the 1950s with an almost total absence of recruitment...
Authors
Gary J. Barton, Richard McDonald, Jonathan Nelson, Randal Dinehart
Nonperiodic eddy pulsations Nonperiodic eddy pulsations
Recirculating flow in lateral separation eddies is typically weaker than main stem flow and provides an effective environment for trapping sediment. Observations of recirculating flow and sedimentary structures demonstrate that eddies pulsate in size and in flow velocity even when main stem flow is steady. Time series measurements of flow velocity and location of the reattachment point...
Authors
David Rubin, Richard McDonald
Internal structure of bars in Grand Canyon, Arizona, and evaluation of proposed flow alternatives for Glen Canyon Dam Internal structure of bars in Grand Canyon, Arizona, and evaluation of proposed flow alternatives for Glen Canyon Dam
No abstract available.
Authors
David Rubin, J. Schmidt, R. Anima, K. Brown, R. Hunter, Hiroshi Ikeda, B. Jaffe, R. McDonald, J. Nelson, T. Reiss, Rex Sanders, R. G. Stanley
Science and Products
Filter Total Items: 16
No Result Found
Filter Total Items: 40
A broadscale fish-habitat model development process: Genesee Basin, New York A broadscale fish-habitat model development process: Genesee Basin, New York
We describe a methodology for developing species-habitat models using available fish and stream habitat data from New York State, focusing on the Genesee basin. Electrofishing data from the New York Department of Environmental Conservation were standardized and used for model development and testing. Four types of predictive models (multiple linear regression, stepwise multiple linear...
Authors
James E. McKenna, Richard McDonald, Chris Castiglione, Sandy Morrison, Kurt P. Kowalski, Dora Passino
Simulation of flow and sediment mobility using a multidimensional flow model for the White Sturgeon critical-habitat reach, Kootenai River near Bonners Ferry, Idaho Simulation of flow and sediment mobility using a multidimensional flow model for the White Sturgeon critical-habitat reach, Kootenai River near Bonners Ferry, Idaho
In 1994, the Kootenai River white sturgeon (Acipenser transmontanus) was listed as an Endangered Species as a direct result of two related observations. First, biologists observed that the white sturgeon population in the Kootenai River was declining. Second, they observed a decline in recruitment of juvenile sturgeon beginning in the 1950s with an almost total absence of recruitment...
Authors
Gary J. Barton, Richard McDonald, Jonathan Nelson, Randal Dinehart
Nonperiodic eddy pulsations Nonperiodic eddy pulsations
Recirculating flow in lateral separation eddies is typically weaker than main stem flow and provides an effective environment for trapping sediment. Observations of recirculating flow and sedimentary structures demonstrate that eddies pulsate in size and in flow velocity even when main stem flow is steady. Time series measurements of flow velocity and location of the reattachment point...
Authors
David Rubin, Richard McDonald
Internal structure of bars in Grand Canyon, Arizona, and evaluation of proposed flow alternatives for Glen Canyon Dam Internal structure of bars in Grand Canyon, Arizona, and evaluation of proposed flow alternatives for Glen Canyon Dam
No abstract available.
Authors
David Rubin, J. Schmidt, R. Anima, K. Brown, R. Hunter, Hiroshi Ikeda, B. Jaffe, R. McDonald, J. Nelson, T. Reiss, Rex Sanders, R. G. Stanley