Daren M Carlisle, Ph.D.
Dr. Daren Carlisle manages the Ecological Flows Program for the Water Resources Mission Area.
Science and Products
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Metformin and other pharmaceuticals widespread in wadeable streams of the southeastern United States Metformin and other pharmaceuticals widespread in wadeable streams of the southeastern United States
Pharmaceutical contaminants are growing aquatic-health concerns and largely attributed to wastewater treatment facility (WWTF) discharges. Five biweekly water samples from 59 small Piedmont (United States) streams were analyzed for 108 pharmaceuticals and degradates using high-performance liquid chromatography and tandem mass spectrometry. The antidiabetic metformin was detected in 89%...
Authors
Paul M. Bradley, Celeste A. Journey, Daniel T. Button, Daren M. Carlisle, Jimmy M. Clark, Barbara Mahler, Naomi Nakagaki, Sharon L. Qi, Ian R. Waite, Peter C. Van Metre
Associations of stream health to altered flow and water temperature in the Sierra Nevada, California Associations of stream health to altered flow and water temperature in the Sierra Nevada, California
Alteration of streamflow and thermal conditions may adversely affect lotic invertebrate communities, but few studies have assessed these phenomena using indicators that control for the potentially confounding influence of natural variability. We designed a study to assess how flow and thermal alteration influence stream health – as indicated by the condition of invertebrate communities...
Authors
Daren M. Carlisle, S. Mark Nelson, Jason T. May
An objective and parsimonious approach for classifying natural flow regimes at a continental scale An objective and parsimonious approach for classifying natural flow regimes at a continental scale
Hydro-ecological stream classification-the process of grouping streams by similar hydrologic responses and, by extension, similar aquatic habitat-has been widely accepted and is considered by some to be one of the first steps towards developing ecological flow targets. A new classification of 1543 streamgauges in the contiguous USA is presented by use of a novel and parsimonious approach...
Authors
Stacey A. Archfield, Jonathan G. Kennen, Daren M. Carlisle, David M. Wolock
Macroinvertebrate community change associated with the severity of streamflow alteration Macroinvertebrate community change associated with the severity of streamflow alteration
Natural streamflows play a critical role in stream ecosystems, yet quantitative relations between streamflow alteration and stream health have been elusive. One reason for this difficulty is that neither streamflow alteration nor ecological responses are measured relative to their natural expectations. We assessed macroinvertebrate community condition in 25 mountain streams representing...
Authors
Daren M. Carlisle, Ken Eng, S. M. Nelson
Design tradeoffs for trend assessment in aquatic biological monitoring programs Design tradeoffs for trend assessment in aquatic biological monitoring programs
Assessments of long-term (multiyear) temporal trends in biological monitoring programs are generally undertaken without an adequate understanding of the temporal variability of biological communities. When the sources and levels of variability are unknown, managers cannot make informed choices in sampling design to achieve monitoring goals in a cost-effective manner. We evaluated...
Authors
Martin E. Gurtz, John Van Sickle, Daren M. Carlisle, Steven G. Paulsen
River flow changes related to land and water management practices across the conterminous United States River flow changes related to land and water management practices across the conterminous United States
The effects of land and water management practices (LWMP)—such as the construction of dams and roads—on river flows typically have been studied at the scale of single river watersheds or for a single type of LWMP. For the most part, assessments of the relative effects of multiple LWMP within many river watersheds across regional and national scales have been lacking. This study assesses...
Authors
Ken Eng, David M. Wolock, Daren M. Carlisle
Science and Products
Filter Total Items: 16
No Result Found
Filter Total Items: 58
Metformin and other pharmaceuticals widespread in wadeable streams of the southeastern United States Metformin and other pharmaceuticals widespread in wadeable streams of the southeastern United States
Pharmaceutical contaminants are growing aquatic-health concerns and largely attributed to wastewater treatment facility (WWTF) discharges. Five biweekly water samples from 59 small Piedmont (United States) streams were analyzed for 108 pharmaceuticals and degradates using high-performance liquid chromatography and tandem mass spectrometry. The antidiabetic metformin was detected in 89%...
Authors
Paul M. Bradley, Celeste A. Journey, Daniel T. Button, Daren M. Carlisle, Jimmy M. Clark, Barbara Mahler, Naomi Nakagaki, Sharon L. Qi, Ian R. Waite, Peter C. Van Metre
Associations of stream health to altered flow and water temperature in the Sierra Nevada, California Associations of stream health to altered flow and water temperature in the Sierra Nevada, California
Alteration of streamflow and thermal conditions may adversely affect lotic invertebrate communities, but few studies have assessed these phenomena using indicators that control for the potentially confounding influence of natural variability. We designed a study to assess how flow and thermal alteration influence stream health – as indicated by the condition of invertebrate communities...
Authors
Daren M. Carlisle, S. Mark Nelson, Jason T. May
An objective and parsimonious approach for classifying natural flow regimes at a continental scale An objective and parsimonious approach for classifying natural flow regimes at a continental scale
Hydro-ecological stream classification-the process of grouping streams by similar hydrologic responses and, by extension, similar aquatic habitat-has been widely accepted and is considered by some to be one of the first steps towards developing ecological flow targets. A new classification of 1543 streamgauges in the contiguous USA is presented by use of a novel and parsimonious approach...
Authors
Stacey A. Archfield, Jonathan G. Kennen, Daren M. Carlisle, David M. Wolock
Macroinvertebrate community change associated with the severity of streamflow alteration Macroinvertebrate community change associated with the severity of streamflow alteration
Natural streamflows play a critical role in stream ecosystems, yet quantitative relations between streamflow alteration and stream health have been elusive. One reason for this difficulty is that neither streamflow alteration nor ecological responses are measured relative to their natural expectations. We assessed macroinvertebrate community condition in 25 mountain streams representing...
Authors
Daren M. Carlisle, Ken Eng, S. M. Nelson
Design tradeoffs for trend assessment in aquatic biological monitoring programs Design tradeoffs for trend assessment in aquatic biological monitoring programs
Assessments of long-term (multiyear) temporal trends in biological monitoring programs are generally undertaken without an adequate understanding of the temporal variability of biological communities. When the sources and levels of variability are unknown, managers cannot make informed choices in sampling design to achieve monitoring goals in a cost-effective manner. We evaluated...
Authors
Martin E. Gurtz, John Van Sickle, Daren M. Carlisle, Steven G. Paulsen
River flow changes related to land and water management practices across the conterminous United States River flow changes related to land and water management practices across the conterminous United States
The effects of land and water management practices (LWMP)—such as the construction of dams and roads—on river flows typically have been studied at the scale of single river watersheds or for a single type of LWMP. For the most part, assessments of the relative effects of multiple LWMP within many river watersheds across regional and national scales have been lacking. This study assesses...
Authors
Ken Eng, David M. Wolock, Daren M. Carlisle