Alec Maule, Ph.D.
Alec is a Research Physiologist Emeritus for the USGS, Columbia River Research Laboratory.
Science and Products
Climate Change Threats to Fish Habitat Connectivity
Many fish species, including mountain whitefish and bull trout, need a variety of habitat types throughout their different life stages that include appropriate water temperatures, flows, refugia from predators, and adequate food. Key to a fish finding and using these different habitats is the connectivity between them. Changing conditions in the future, including increased air and water temperatur
Filter Total Items: 65
Assessing climate-change risks to cultural and natural resources in the Yakima River Basin, Washington, USA
We provide an overview of an interdisciplinary special issue that examines the influence of climate change on people and fish in the Yakima River Basin, USA. Jenni et al. (2013) addresses stakeholder-relevant climate change issues, such as water availability and uncertainty, with decision analysis tools. Montag et al. (2014) explores Yakama Tribal cultural values and well-being and their incorpora
Authors
James R. Hatten, Stephen M. Waste, Alec G. Maule
Identifying stakeholder-relevant climate change impacts: a case study in the Yakima River Basin, Washington, USA
Designing climate-related research so that study results will be useful to natural resource managers is a unique challenge. While decision makers increasingly recognize the need to consider climate change in their resource management plans, and climate scientists recognize the importance of providing locally-relevant climate data and projections, there often remains a gap between management needs
Authors
K. Jenni, D. Graves, Jill M. Hardiman, James R. Hatten, Mark C. Mastin, Matthew G. Mesa, J. Montag, Timothy Nieman, Frank D. Voss, Alec G. Maule
Correlation of gene expression and contaminat concentrations in wild largescale suckers: a field-based study
Toxic compounds such as organochlorine pesticides (OCs), polychlorinated biphenyls (PCBs), and polybrominated diphenyl ether flame retardants (PBDEs) have been detected in fish, birds, and aquatic mammals that live in the Columbia River or use food resources from within the river. We developed a custom microarray for largescale suckers (Catostomus macrocheilus) and used it to investigate the molec
Authors
Helena E. Christiansen, Alvine C. Mehinto, Fahong Yu, Russell W. Perry, Nancy D. Denslow, Alec G. Maule, Matthew G. Mesa
Modeling effects of climate change on Yakima River salmonid habitats
We evaluated the potential effects of two climate change scenarios on salmonid habitats in the Yakima River by linking the outputs from a watershed model, a river operations model, a two-dimensional (2D) hydrodynamic model, and a geographic information system (GIS). The watershed model produced a discharge time series (hydrograph) in two study reaches under three climate scenarios: a baseline (198
Authors
James R. Hatten, Thomas R. Batt, Patrick J. Connolly, Alec G. Maule
A stakeholder project to model water temperature under future climate scenarios in the Satus and Toppenish watersheds of the Yakima River Basinin Washington, USA
The goal of this study was to support an assessment of the potential effects of climate change on select natural, social, and economic resources in the Yakima River Basin. A workshop with local stakeholders highlighted the usefulness of projecting climate change impacts on anadromous steelhead (Oncorhynchus mykiss), a fish species of importance to local tribes, fisherman, and conservationists. Str
Authors
D. Graves, A. Maule
Development of a database-driven system for simulating water temperature in the lower Yakima River main stem, Washington, for various climate scenarios
A model for simulating daily maximum and mean water temperatures was developed by linking two existing models: one developed by the U.S. Geological Survey and one developed by the Bureau of Reclamation. The study area included the lower Yakima River main stem between the Roza Dam and West Richland, Washington. To automate execution of the labor-intensive models, a database-driven model automation
Authors
Frank Voss, Alec Maule
Contaminant loading in remote Arctic lakes affects cellular stress-related proteins expression in feral charr
The remote Arctic lakes on Bjørnøya Island, Norway, offer a unique opportunity to study possible affect of lifelong contaminant exposure in wild populations of landlocked Arctic charr (Salvelinus alpinus). This is because Lake Ellasjøen has persistent organic pollutant (POP) levels that are significantly greater than in the nearby Lake Øyangen. We examined whether this differential contaminant loa
Authors
Steve Wiseman, Even H. Jorgensen, Alec G. Maule, Mathilakath M. Vijayan
Physiological development and vulnerability to Ceratomyxa shasta of fall-run Chinook Salmon in the Upper Klamath River Watershed
We evaluated a stock for restoring runs of fall Chinook salmon Oncorhynchus tshawytscha in the Upper Klamath River basin by monitoring its development in Iron Gate Hatchery and in net-pens in the Williamson River and Upper Klamath Lake in Oregon. We transferred age-1 hatchery fall Chinook salmon to net-pens in October 2005 and age-0 fall Chinook salmon in May 2006. Indices of smolt development wer
Authors
Alec G. Maule, Scott P. Vanderkooi, John B Hamilton, Richard Stocking, Jerri Bartholomew
Physiological development of reintroduced Chinook salmon in the Upper Klamath Basin. 2006 final report
n/a
Authors
A.G. Maule, S. P. VanderKooi, J. Hamilton, R. Stocking, J. Bartholomew
Chemical contaminants in fish feeds used in federal salmonid hatcheries in the USA
Recent studies have demonstrated that fish feeds contain significant concentrations of contaminants, many of which can bioaccumulate and bioconcentrate in fish. Organochlorine (OC) contaminants are present in the fish oils and fish meals used in feed manufacture, and some researchers speculate that all fish feeds contain measurable levels of some contaminants. To determine the concentration of con
Authors
A.G. Maule, A.L. Gannam, J.W. Davis
Toxicokinetics and effects of PCBs in Arctic fish: a review of studies on Arctic charr
In a series of environmentally realistic laboratory experiments, toxicokinetics and effects of polychlorinated biphenyls (PCBs) were studied in the Arctic charr (Salvelinus alpinus). Winter fasting and emaciation, which are common among Arctic charr living in high latitudes, resulted in a redistribution of the lipophilic PCBs from lipid-storing tissue such as the muscle, to vital organs that must
Authors
EH Jorgensen, M.N. Vijayan, J.-E.A. Killie, N. Aluru, O. Aas-Hansen, A. Maule
Fasting augments PCB impact on liver metabolism in anadromous Arctic Char
Anadromous arctic char (Salvelinus alpinus) undertake short feeding migrations to seawater every summer and accumulate lipids, while the rest of the year is spent in fresh water where the accumulated lipid reserves are mobilized. We tested the hypothesis that winter fasting and the associated polychlorinated biphenyls' (PCBs) redistribution from lipid depots to critical tissues impair the liver me
Authors
M.M. Vijayan, N. Aluru, A.G. Maule, E.H. Jorgensen
Science and Products
Climate Change Threats to Fish Habitat Connectivity
Many fish species, including mountain whitefish and bull trout, need a variety of habitat types throughout their different life stages that include appropriate water temperatures, flows, refugia from predators, and adequate food. Key to a fish finding and using these different habitats is the connectivity between them. Changing conditions in the future, including increased air and water temperatur
Filter Total Items: 65
Assessing climate-change risks to cultural and natural resources in the Yakima River Basin, Washington, USA
We provide an overview of an interdisciplinary special issue that examines the influence of climate change on people and fish in the Yakima River Basin, USA. Jenni et al. (2013) addresses stakeholder-relevant climate change issues, such as water availability and uncertainty, with decision analysis tools. Montag et al. (2014) explores Yakama Tribal cultural values and well-being and their incorpora
Authors
James R. Hatten, Stephen M. Waste, Alec G. Maule
Identifying stakeholder-relevant climate change impacts: a case study in the Yakima River Basin, Washington, USA
Designing climate-related research so that study results will be useful to natural resource managers is a unique challenge. While decision makers increasingly recognize the need to consider climate change in their resource management plans, and climate scientists recognize the importance of providing locally-relevant climate data and projections, there often remains a gap between management needs
Authors
K. Jenni, D. Graves, Jill M. Hardiman, James R. Hatten, Mark C. Mastin, Matthew G. Mesa, J. Montag, Timothy Nieman, Frank D. Voss, Alec G. Maule
Correlation of gene expression and contaminat concentrations in wild largescale suckers: a field-based study
Toxic compounds such as organochlorine pesticides (OCs), polychlorinated biphenyls (PCBs), and polybrominated diphenyl ether flame retardants (PBDEs) have been detected in fish, birds, and aquatic mammals that live in the Columbia River or use food resources from within the river. We developed a custom microarray for largescale suckers (Catostomus macrocheilus) and used it to investigate the molec
Authors
Helena E. Christiansen, Alvine C. Mehinto, Fahong Yu, Russell W. Perry, Nancy D. Denslow, Alec G. Maule, Matthew G. Mesa
Modeling effects of climate change on Yakima River salmonid habitats
We evaluated the potential effects of two climate change scenarios on salmonid habitats in the Yakima River by linking the outputs from a watershed model, a river operations model, a two-dimensional (2D) hydrodynamic model, and a geographic information system (GIS). The watershed model produced a discharge time series (hydrograph) in two study reaches under three climate scenarios: a baseline (198
Authors
James R. Hatten, Thomas R. Batt, Patrick J. Connolly, Alec G. Maule
A stakeholder project to model water temperature under future climate scenarios in the Satus and Toppenish watersheds of the Yakima River Basinin Washington, USA
The goal of this study was to support an assessment of the potential effects of climate change on select natural, social, and economic resources in the Yakima River Basin. A workshop with local stakeholders highlighted the usefulness of projecting climate change impacts on anadromous steelhead (Oncorhynchus mykiss), a fish species of importance to local tribes, fisherman, and conservationists. Str
Authors
D. Graves, A. Maule
Development of a database-driven system for simulating water temperature in the lower Yakima River main stem, Washington, for various climate scenarios
A model for simulating daily maximum and mean water temperatures was developed by linking two existing models: one developed by the U.S. Geological Survey and one developed by the Bureau of Reclamation. The study area included the lower Yakima River main stem between the Roza Dam and West Richland, Washington. To automate execution of the labor-intensive models, a database-driven model automation
Authors
Frank Voss, Alec Maule
Contaminant loading in remote Arctic lakes affects cellular stress-related proteins expression in feral charr
The remote Arctic lakes on Bjørnøya Island, Norway, offer a unique opportunity to study possible affect of lifelong contaminant exposure in wild populations of landlocked Arctic charr (Salvelinus alpinus). This is because Lake Ellasjøen has persistent organic pollutant (POP) levels that are significantly greater than in the nearby Lake Øyangen. We examined whether this differential contaminant loa
Authors
Steve Wiseman, Even H. Jorgensen, Alec G. Maule, Mathilakath M. Vijayan
Physiological development and vulnerability to Ceratomyxa shasta of fall-run Chinook Salmon in the Upper Klamath River Watershed
We evaluated a stock for restoring runs of fall Chinook salmon Oncorhynchus tshawytscha in the Upper Klamath River basin by monitoring its development in Iron Gate Hatchery and in net-pens in the Williamson River and Upper Klamath Lake in Oregon. We transferred age-1 hatchery fall Chinook salmon to net-pens in October 2005 and age-0 fall Chinook salmon in May 2006. Indices of smolt development wer
Authors
Alec G. Maule, Scott P. Vanderkooi, John B Hamilton, Richard Stocking, Jerri Bartholomew
Physiological development of reintroduced Chinook salmon in the Upper Klamath Basin. 2006 final report
n/a
Authors
A.G. Maule, S. P. VanderKooi, J. Hamilton, R. Stocking, J. Bartholomew
Chemical contaminants in fish feeds used in federal salmonid hatcheries in the USA
Recent studies have demonstrated that fish feeds contain significant concentrations of contaminants, many of which can bioaccumulate and bioconcentrate in fish. Organochlorine (OC) contaminants are present in the fish oils and fish meals used in feed manufacture, and some researchers speculate that all fish feeds contain measurable levels of some contaminants. To determine the concentration of con
Authors
A.G. Maule, A.L. Gannam, J.W. Davis
Toxicokinetics and effects of PCBs in Arctic fish: a review of studies on Arctic charr
In a series of environmentally realistic laboratory experiments, toxicokinetics and effects of polychlorinated biphenyls (PCBs) were studied in the Arctic charr (Salvelinus alpinus). Winter fasting and emaciation, which are common among Arctic charr living in high latitudes, resulted in a redistribution of the lipophilic PCBs from lipid-storing tissue such as the muscle, to vital organs that must
Authors
EH Jorgensen, M.N. Vijayan, J.-E.A. Killie, N. Aluru, O. Aas-Hansen, A. Maule
Fasting augments PCB impact on liver metabolism in anadromous Arctic Char
Anadromous arctic char (Salvelinus alpinus) undertake short feeding migrations to seawater every summer and accumulate lipids, while the rest of the year is spent in fresh water where the accumulated lipid reserves are mobilized. We tested the hypothesis that winter fasting and the associated polychlorinated biphenyls' (PCBs) redistribution from lipid depots to critical tissues impair the liver me
Authors
M.M. Vijayan, N. Aluru, A.G. Maule, E.H. Jorgensen