Pat Braaten, PhD
Dr. Pat Braaten is a Research Fish Biologist at the Columbia Environmental Research Center's Fort Peck Field Research Station.
Science and Products
Filter Total Items: 24
Migrations and swimming capabilities of endangered pallid sturgeon (Scaphirhynchus albus) to guide passage designs in the fragmented Yellowstone River
Fragmentation of the Yellowstone River is hypothesized to preclude recruitment of endangered Scaphirhynchus albus (pallid sturgeon) by impeding upstream spawning migrations and access to upstream spawning areas, thereby limiting the length of free-flowing river required for survival of early life stages. Building on this hypothesis, the reach of the Yellowstone River affected by Intake Diversion D
Authors
P. J. Braaten, Caroline M. Elliott, Jason C. Rhoten, D. B. Fuller, Brandon J. McElroy
Novel single-nucleotide polymorphism markers confirm successful spawning of endangered pallid sturgeon in the upper Missouri River Basin
Spawning of the federally endangered Pallid Sturgeon Scaphirhynchus albus is known to occur in the upper Missouri River basin, but progeny from natural reproductive events have not been observed and recruitment to juvenile or adult life stages has not been documented in recent decades. Identification of Pallid Sturgeon progeny is confounded by the fact that Shovelnose Sturgeon S. platorynchus occu
Authors
Jennifer S. Eichelberger, P. J. Braaten, D. B. Fuller, Matthew S. Krampe, Edward J. Heist
Ecological requirements for pallid sturgeon reproduction and recruitment in the Missouri River: annual report 2011
The Comprehensive Sturgeon Research Project is a multiyear, multiagency collaborative research framework developed to provide information to support pallid sturgeon recovery and Missouri River management decisions. The project strategy integrates field and laboratory studies of sturgeon reproductive ecology, early life history, habitat requirements, and physiology. The project scope of work is dev
Authors
Aaron J. DeLonay, Robert B. Jacobson, Kimberly A. Chojnacki, Mandy L. Annis, P. J. Braaten, Caroline M. Elliott, D. B. Fuller, Justin D. Haas, Tyler M. Haddix, Hallie L.A. Ladd, Brandon J. McElroy, Gerald E. Mestl, Diana M. Papoulias, Jason C. Rhoten, Mark L. Wildhaber
Natural growth and diet of known-age pallid sturgeon (Scaphirhynchus albus) early life stages in the upper Missouri River basin, Montana and North Dakota
Prior to anthropogenic modifications, the historic Missouri River provided ecological conditions suitable for reproduction, growth, and survival of pallid sturgeon Scaphirhynchus albus. However, little information is available to discern whether altered conditions in the contemporary Missouri River are suitable for feeding, growth and survival of endangered pallid sturgeon during the early life st
Authors
P.J. Braaten, D.B. Fuller, R.D. Lott, T.M. Haddix, L.D. Holte, R.H. Wilson, M.L. Bartron, J.A. Kalie, P.W. DeHaan, W.R. Ardren, R.J. Holm, M.E. Jaeger
An experimental test and models of drift and dispersal processes of pallid sturgeon (Scaphirhynchus albus) free embryos in the Missouri River
Free embryos of wild pallid sturgeon Scaphirhynchus albus were released in the Missouri River and captured at downstream sites through a 180-km reach of the river to examine ontogenetic drift and dispersal processes. Free embryos drifted primarily in the fastest portion of the river channel, and initial drift velocities for all age groups (mean = 0.66–0.70 m s−1) were only slightly slower than mea
Authors
P.J. Braaten, D.B. Fuller, R.D. Lott, M.P. Ruggles, T.F. Brandt, R.G. Legare, R.J. Holm
Identifying structural elements needed for development of a predictive life-history model for pallid and shovelnose sturgeons
Intensive management of the Missouri and Mississippi Rivers has resulted in dramatic changes to the river systems and their biota. These changes have been implicated in the decline of the pallid sturgeon (Scaphirhynchus albus), which has been listed as a United States federal endangered species. The sympatric shovelnose sturgeon (S. platorynchus) is more common and widespread but has also been in
Authors
Mark L. Wildhaber, A. J. DeLonay, D. M. Papoulias, D.L. Galat, R. B. Jacobson, D.G. Simpkins, P.J. Braaten, C. E. Korschgen, M. J. Mac
Warmwater fish in rivers
Large warmwater rivers are complex ecosystems and often contain numerous species and habitats. We loosely define a large river as having a drainage area greater than 50,000 km2 and a stream order great than six. Further, these rivers typically have mean discharges greater than 1,500 m3/s. Channel patterns are highly variable among and within large rivers, generally forming a meandering pattern. Cu
Authors
Christopher S. Guy, P. J. Braaten, Mark P. Herzog, John Pitlo, R. Scott Rogers
An estimate of the historic population size of adult pallid sturgeon in the upper Missouri river basin, Montana and North Dakota
Juvenile pallid sturgeon Scaphirhynchus albus raised in hatcheries and stocked in the wild are used to augment critically imperiled populations of this federally endangered species in the United States. For pallid sturgeon in recovery priority management area 2 (RPMA 2) of the Missouri River and lower Yellowstone River where natural recruitment has not occurred for decades, restoration programs ai
Authors
P.J. Braaten, D.B. Fuller, R.D. Lott, G.R. Jordan
Drift dynamics of larval pallid sturgeon and shovelnose sturgeon in a natural side channel of the Upper Missouri River, Montana
The drift dynamics of larval shovelnose sturgeon Scaphirhynchus platorynchus (1, 2, 6, and 10 d posthatch [dph]) and pallid sturgeon S. albus (1, 2, 5, 9, 11, and 17 dph) were examined in a natural side channel of the Missouri River to quantify the vertical drift location of larvae in the water column, determine the drift velocity of larvae relative to water velocity, and simulate the cumulative d
Authors
P.J. Braaten, D.B. Fuller, L.D. Holte, R.D. Lott, W. Viste, T.F. Brandt, R.G. Legare
A conceptual life-history model for pallid and shovelnose sturgeon
Intensive management of the Missouri and Mississippi Rivers has resulted in dramatic physical changes to these rivers. These changes have been implicated as causative agents in the decline of pallid sturgeon. The pallid sturgeon, federally listed as endangered, is endemic to the turbid waters of the Missouri River and the Lower Mississippi River. The sympatric shovelnose sturgeon historically was
Authors
Mark L. Wildhaber, Aaron J. DeLonay, Diana M. Papoulias, David L. Galat, Robert B. Jacobson, Darin G. Simpkins, P. J. Braaten, Carl E. Korschgen, Michael J. Mac
Growth rates of young-of-year shovelnose sturgeon in the Upper Missouri River
Information on growth during the larval and young-of-year life stages in natural river environments is generally lacking for most sturgeon species. In this study, methods for estimating ages and quantifying growth were developed for field-sampled larval and young-of-year shovelnose sturgeon Scaphirhynchus platorynchus in the upper Missouri River. First, growth was assessed by partitioning samples
Authors
P. J. Braaten, D.B. Fuller
Diet composition of larval and young-of-year shovelnose sturgeon in the Upper Missouri River
Obtaining food following the transition from endogenous to exogenous feeding and during the first year of life is a critical event that strongly influences growth and survival of young-of-year fishes. For shovelnose sturgeon Scaphirhynchus platorynchus, limited information is available on food habits during the first year of life. The objective of this study was to quantify diet components of shov
Authors
P. J. Braaten, D.B. Fuller, N.D. McClenning
Science and Products
Filter Total Items: 24
Migrations and swimming capabilities of endangered pallid sturgeon (Scaphirhynchus albus) to guide passage designs in the fragmented Yellowstone River
Fragmentation of the Yellowstone River is hypothesized to preclude recruitment of endangered Scaphirhynchus albus (pallid sturgeon) by impeding upstream spawning migrations and access to upstream spawning areas, thereby limiting the length of free-flowing river required for survival of early life stages. Building on this hypothesis, the reach of the Yellowstone River affected by Intake Diversion D
Authors
P. J. Braaten, Caroline M. Elliott, Jason C. Rhoten, D. B. Fuller, Brandon J. McElroy
Novel single-nucleotide polymorphism markers confirm successful spawning of endangered pallid sturgeon in the upper Missouri River Basin
Spawning of the federally endangered Pallid Sturgeon Scaphirhynchus albus is known to occur in the upper Missouri River basin, but progeny from natural reproductive events have not been observed and recruitment to juvenile or adult life stages has not been documented in recent decades. Identification of Pallid Sturgeon progeny is confounded by the fact that Shovelnose Sturgeon S. platorynchus occu
Authors
Jennifer S. Eichelberger, P. J. Braaten, D. B. Fuller, Matthew S. Krampe, Edward J. Heist
Ecological requirements for pallid sturgeon reproduction and recruitment in the Missouri River: annual report 2011
The Comprehensive Sturgeon Research Project is a multiyear, multiagency collaborative research framework developed to provide information to support pallid sturgeon recovery and Missouri River management decisions. The project strategy integrates field and laboratory studies of sturgeon reproductive ecology, early life history, habitat requirements, and physiology. The project scope of work is dev
Authors
Aaron J. DeLonay, Robert B. Jacobson, Kimberly A. Chojnacki, Mandy L. Annis, P. J. Braaten, Caroline M. Elliott, D. B. Fuller, Justin D. Haas, Tyler M. Haddix, Hallie L.A. Ladd, Brandon J. McElroy, Gerald E. Mestl, Diana M. Papoulias, Jason C. Rhoten, Mark L. Wildhaber
Natural growth and diet of known-age pallid sturgeon (Scaphirhynchus albus) early life stages in the upper Missouri River basin, Montana and North Dakota
Prior to anthropogenic modifications, the historic Missouri River provided ecological conditions suitable for reproduction, growth, and survival of pallid sturgeon Scaphirhynchus albus. However, little information is available to discern whether altered conditions in the contemporary Missouri River are suitable for feeding, growth and survival of endangered pallid sturgeon during the early life st
Authors
P.J. Braaten, D.B. Fuller, R.D. Lott, T.M. Haddix, L.D. Holte, R.H. Wilson, M.L. Bartron, J.A. Kalie, P.W. DeHaan, W.R. Ardren, R.J. Holm, M.E. Jaeger
An experimental test and models of drift and dispersal processes of pallid sturgeon (Scaphirhynchus albus) free embryos in the Missouri River
Free embryos of wild pallid sturgeon Scaphirhynchus albus were released in the Missouri River and captured at downstream sites through a 180-km reach of the river to examine ontogenetic drift and dispersal processes. Free embryos drifted primarily in the fastest portion of the river channel, and initial drift velocities for all age groups (mean = 0.66–0.70 m s−1) were only slightly slower than mea
Authors
P.J. Braaten, D.B. Fuller, R.D. Lott, M.P. Ruggles, T.F. Brandt, R.G. Legare, R.J. Holm
Identifying structural elements needed for development of a predictive life-history model for pallid and shovelnose sturgeons
Intensive management of the Missouri and Mississippi Rivers has resulted in dramatic changes to the river systems and their biota. These changes have been implicated in the decline of the pallid sturgeon (Scaphirhynchus albus), which has been listed as a United States federal endangered species. The sympatric shovelnose sturgeon (S. platorynchus) is more common and widespread but has also been in
Authors
Mark L. Wildhaber, A. J. DeLonay, D. M. Papoulias, D.L. Galat, R. B. Jacobson, D.G. Simpkins, P.J. Braaten, C. E. Korschgen, M. J. Mac
Warmwater fish in rivers
Large warmwater rivers are complex ecosystems and often contain numerous species and habitats. We loosely define a large river as having a drainage area greater than 50,000 km2 and a stream order great than six. Further, these rivers typically have mean discharges greater than 1,500 m3/s. Channel patterns are highly variable among and within large rivers, generally forming a meandering pattern. Cu
Authors
Christopher S. Guy, P. J. Braaten, Mark P. Herzog, John Pitlo, R. Scott Rogers
An estimate of the historic population size of adult pallid sturgeon in the upper Missouri river basin, Montana and North Dakota
Juvenile pallid sturgeon Scaphirhynchus albus raised in hatcheries and stocked in the wild are used to augment critically imperiled populations of this federally endangered species in the United States. For pallid sturgeon in recovery priority management area 2 (RPMA 2) of the Missouri River and lower Yellowstone River where natural recruitment has not occurred for decades, restoration programs ai
Authors
P.J. Braaten, D.B. Fuller, R.D. Lott, G.R. Jordan
Drift dynamics of larval pallid sturgeon and shovelnose sturgeon in a natural side channel of the Upper Missouri River, Montana
The drift dynamics of larval shovelnose sturgeon Scaphirhynchus platorynchus (1, 2, 6, and 10 d posthatch [dph]) and pallid sturgeon S. albus (1, 2, 5, 9, 11, and 17 dph) were examined in a natural side channel of the Missouri River to quantify the vertical drift location of larvae in the water column, determine the drift velocity of larvae relative to water velocity, and simulate the cumulative d
Authors
P.J. Braaten, D.B. Fuller, L.D. Holte, R.D. Lott, W. Viste, T.F. Brandt, R.G. Legare
A conceptual life-history model for pallid and shovelnose sturgeon
Intensive management of the Missouri and Mississippi Rivers has resulted in dramatic physical changes to these rivers. These changes have been implicated as causative agents in the decline of pallid sturgeon. The pallid sturgeon, federally listed as endangered, is endemic to the turbid waters of the Missouri River and the Lower Mississippi River. The sympatric shovelnose sturgeon historically was
Authors
Mark L. Wildhaber, Aaron J. DeLonay, Diana M. Papoulias, David L. Galat, Robert B. Jacobson, Darin G. Simpkins, P. J. Braaten, Carl E. Korschgen, Michael J. Mac
Growth rates of young-of-year shovelnose sturgeon in the Upper Missouri River
Information on growth during the larval and young-of-year life stages in natural river environments is generally lacking for most sturgeon species. In this study, methods for estimating ages and quantifying growth were developed for field-sampled larval and young-of-year shovelnose sturgeon Scaphirhynchus platorynchus in the upper Missouri River. First, growth was assessed by partitioning samples
Authors
P. J. Braaten, D.B. Fuller
Diet composition of larval and young-of-year shovelnose sturgeon in the Upper Missouri River
Obtaining food following the transition from endogenous to exogenous feeding and during the first year of life is a critical event that strongly influences growth and survival of young-of-year fishes. For shovelnose sturgeon Scaphirhynchus platorynchus, limited information is available on food habits during the first year of life. The objective of this study was to quantify diet components of shov
Authors
P. J. Braaten, D.B. Fuller, N.D. McClenning