Jean V Adams, PhD (Former Employee)
Science and Products
Filter Total Items: 79
Presence of indicator plant species as a predictor of wetland vegetation integrity
We fit regression and classification tree models to vegetation data collected from Ohio (USA) wetlands to determine (1) which species best predict Ohio vegetation index of biotic integrity (OVIBI) score and (2) which species best predict high-quality wetlands (OVIBI score >75). The simplest regression tree model predicted OVIBI score based on the occurrence of three plant species: skunk-cabbage (S
Authors
Martin A. Stapanian, Jean V. Adams, Brian Gara
Use of classification trees to apportion single echo detections to species: Application to the pelagic fish community of Lake Superior
Acoustic methods are used to estimate the density of pelagic fish in large lakes with results of midwater trawling used to assign species composition. Apportionment in lakes having mixed species can be challenging because only a small fraction of the water sampled acoustically is sampled with trawl gear. Here we describe a new method where single echo detections (SEDs) are assigned to species base
Authors
Daniel L. Yule, Jean V. Adams, Thomas R. Hrabik, Mark R. Vinson, Zebadiah Woiak, Tyler D. Ahrenstroff
A spatial age-structured model for describing sea lamprey (Petromyzon marinus) population dynamics
The control of invasive sea lampreys (Petromyzon marinus) presents large scale management challenges in the Laurentian Great Lakes. No modeling approach has been developed that describes spatial dynamics of lamprey populations. We developed and validated a spatial and age-structured model and applied it to a sea lamprey population in a large river in the Great Lakes basin. We considered 75 disc
Authors
Jason M. Robinson, Michael J. Wilberg, Jean V. Adams, Michael L. Jones
Status and trends of prey fish populations in Lake Michigan, 2012
The U.S. Geological Survey Great Lakes Science Center has conducted lake-wide surveys of the fish community in Lake Michigan each fall since 1973 using standard 12-m bottom trawls towed along contour at depths of 9 to 110 m at each of seven index transects. The resulting data on relative abundance, size and age structure, and condition of individual fishes are used to estimate various population p
Authors
David B. Bunnell, Charles P. Madenjian, Timothy J. Desorcie, Melissa Jean Kostich, Kelley Smith, Jean V. Adams
Competitive Interactions of Garlic Mustard (Alliaria petiolata) and Damesrocket (Hesperis matronalis)
Competitive interactions between native plants and nonnative, invasive plant species have been extensively studied; however, within degraded landscapes, the effect of interspecific interactions among invasive plants is less explored. We investigated a competitive interaction between two sympatric, invasive mustard species that have similar life history strategies and growth forms: garlic mustard a
Authors
Stacey A. Leicht-Young, Noel B. Pavlovic, Jean V. Adams
Disturbance metrics predict a wetland Vegetation Index of Biotic Integrity
Indices of biological integrity of wetlands based on vascular plants (VIBIs) have been developed in many areas in the USA. Knowledge of the best predictors of VIBIs would enable management agencies to make better decisions regarding mitigation site selection and performance monitoring criteria. We use a novel statistical technique to develop predictive models for an established index of wetland ve
Authors
Martin A. Stapanian, John Mack, Jean V. Adams, Brian Gara, Mick Micacchion
Population synchrony of a native fish across three Laurentian Great Lakes: Evaluating the effects of dispersal and climate
Climate and dispersal are the two most commonly cited mechanisms to explain spatial synchrony among time series of animal populations, and climate is typically most important for fishes. Using data from 1978-2006, we quantified the spatial synchrony in recruitment and population catch-per-unit-effort (CPUE) for bloater (Coregonus hoyi) populations across lakes Superior, Michigan, and Huron. In thi
Authors
D.B. Bunnell, J.V. Adams, O. T. Gorman, C.P. Madenjian, S.C. Riley, E.F. Roseman, J.S. Schaeffer
Long-term trends in habitat use of offshore demersal fishes in western Lake Huron suggest large-scale ecosystem change
We estimated mean depths of capture for offshore demersal fish species, grouped into three habitat-based guilds (shallow benthic, pelagic, and deep benthic), using fall bottom trawl data (27–73 m) in the western main basin of Lake Huron from 1976 to 2007. The mean depth of capture of the shallow and deep benthic guilds initially exhibited a trend toward capture in shallower water, switched to a tr
Authors
Stephen C. Riley, Jean V. Adams
Status and trends of prey fish populations in Lake Michigan, 2008
The Great Lakes Science Center (GLSC) has conducted lake-wide surveys of the fish community in Lake Michigan each fall since 1973 using standard 12-m bottom trawls towed along contour at depths of 9 to 110 m at each of seven index transects. The resulting data on relative abundance, size structure, and condition of individual fishes are used to estimate various population parameters that are in tu
Authors
David B. Bunnell, Charles P. Madenjian, Jeffrey D. Holuszko, Timothy J. Desorcie, Jean V. Adams
Expansion of Dreissena into offshore waters of Lake Michigan and potential impacts on fish populations
Lake Michigan was invaded by zebra mussels (Dreissena polymorpha) in the late 1980s and then followed by quagga mussels (D. bugensis) around 1997. Through 2000, both species (herein Dreissena) were largely restricted to depths less than 50??m. Herein, we provide results of an annual lake-wide bottom trawl survey in Lake Michigan that reveal the relative biomass and depth distribution of Dreissena
Authors
D.B. Bunnell, C.P. Madenjian, J.D. Holuszko, J.V. Adams, J. R. P. French
Change in diel catchability of young-of-year yellow perch associated with establishment of dreissenid mussels
1. Non-native mussels have increased water clarity in many lakes and streams in North America and Europe. Diel variation in catchability of some fish species has been linked to visibility during survey trawls (used to measure escapement). 2. Water clarity increased in nearshore areas of western Lake Erie by the early 1990s, following passage of legislation in 1972 to improve water quality (e.g. re
Authors
Martin A. Stapanian, Patrick M. Kocovsky, Jean V. Adams
Comparisons between consumption estimates from bioenergetics simulations and field measurements for walleyes from Oneida Lake, New York
Daily consumption was estimated from the stomach contents of walleyes Sander vitreus collected weekly from Oneida Lake, New York, during June-October 1975, 1992, 1993, and 1994 for one to four age-groups per year. Field rations were highly variable between weeks, and trends in ration size varied both seasonally and annually. The coefficient of variation for weekly field rations within years and ag
Authors
B.F. Lantry, L. G. Rudstam, J.L. Forney, A.J. VanDeValk, E.L. Mills, D.J. Stewart, J.V. Adams
Science and Products
Filter Total Items: 79
Presence of indicator plant species as a predictor of wetland vegetation integrity
We fit regression and classification tree models to vegetation data collected from Ohio (USA) wetlands to determine (1) which species best predict Ohio vegetation index of biotic integrity (OVIBI) score and (2) which species best predict high-quality wetlands (OVIBI score >75). The simplest regression tree model predicted OVIBI score based on the occurrence of three plant species: skunk-cabbage (S
Authors
Martin A. Stapanian, Jean V. Adams, Brian Gara
Use of classification trees to apportion single echo detections to species: Application to the pelagic fish community of Lake Superior
Acoustic methods are used to estimate the density of pelagic fish in large lakes with results of midwater trawling used to assign species composition. Apportionment in lakes having mixed species can be challenging because only a small fraction of the water sampled acoustically is sampled with trawl gear. Here we describe a new method where single echo detections (SEDs) are assigned to species base
Authors
Daniel L. Yule, Jean V. Adams, Thomas R. Hrabik, Mark R. Vinson, Zebadiah Woiak, Tyler D. Ahrenstroff
A spatial age-structured model for describing sea lamprey (Petromyzon marinus) population dynamics
The control of invasive sea lampreys (Petromyzon marinus) presents large scale management challenges in the Laurentian Great Lakes. No modeling approach has been developed that describes spatial dynamics of lamprey populations. We developed and validated a spatial and age-structured model and applied it to a sea lamprey population in a large river in the Great Lakes basin. We considered 75 disc
Authors
Jason M. Robinson, Michael J. Wilberg, Jean V. Adams, Michael L. Jones
Status and trends of prey fish populations in Lake Michigan, 2012
The U.S. Geological Survey Great Lakes Science Center has conducted lake-wide surveys of the fish community in Lake Michigan each fall since 1973 using standard 12-m bottom trawls towed along contour at depths of 9 to 110 m at each of seven index transects. The resulting data on relative abundance, size and age structure, and condition of individual fishes are used to estimate various population p
Authors
David B. Bunnell, Charles P. Madenjian, Timothy J. Desorcie, Melissa Jean Kostich, Kelley Smith, Jean V. Adams
Competitive Interactions of Garlic Mustard (Alliaria petiolata) and Damesrocket (Hesperis matronalis)
Competitive interactions between native plants and nonnative, invasive plant species have been extensively studied; however, within degraded landscapes, the effect of interspecific interactions among invasive plants is less explored. We investigated a competitive interaction between two sympatric, invasive mustard species that have similar life history strategies and growth forms: garlic mustard a
Authors
Stacey A. Leicht-Young, Noel B. Pavlovic, Jean V. Adams
Disturbance metrics predict a wetland Vegetation Index of Biotic Integrity
Indices of biological integrity of wetlands based on vascular plants (VIBIs) have been developed in many areas in the USA. Knowledge of the best predictors of VIBIs would enable management agencies to make better decisions regarding mitigation site selection and performance monitoring criteria. We use a novel statistical technique to develop predictive models for an established index of wetland ve
Authors
Martin A. Stapanian, John Mack, Jean V. Adams, Brian Gara, Mick Micacchion
Population synchrony of a native fish across three Laurentian Great Lakes: Evaluating the effects of dispersal and climate
Climate and dispersal are the two most commonly cited mechanisms to explain spatial synchrony among time series of animal populations, and climate is typically most important for fishes. Using data from 1978-2006, we quantified the spatial synchrony in recruitment and population catch-per-unit-effort (CPUE) for bloater (Coregonus hoyi) populations across lakes Superior, Michigan, and Huron. In thi
Authors
D.B. Bunnell, J.V. Adams, O. T. Gorman, C.P. Madenjian, S.C. Riley, E.F. Roseman, J.S. Schaeffer
Long-term trends in habitat use of offshore demersal fishes in western Lake Huron suggest large-scale ecosystem change
We estimated mean depths of capture for offshore demersal fish species, grouped into three habitat-based guilds (shallow benthic, pelagic, and deep benthic), using fall bottom trawl data (27–73 m) in the western main basin of Lake Huron from 1976 to 2007. The mean depth of capture of the shallow and deep benthic guilds initially exhibited a trend toward capture in shallower water, switched to a tr
Authors
Stephen C. Riley, Jean V. Adams
Status and trends of prey fish populations in Lake Michigan, 2008
The Great Lakes Science Center (GLSC) has conducted lake-wide surveys of the fish community in Lake Michigan each fall since 1973 using standard 12-m bottom trawls towed along contour at depths of 9 to 110 m at each of seven index transects. The resulting data on relative abundance, size structure, and condition of individual fishes are used to estimate various population parameters that are in tu
Authors
David B. Bunnell, Charles P. Madenjian, Jeffrey D. Holuszko, Timothy J. Desorcie, Jean V. Adams
Expansion of Dreissena into offshore waters of Lake Michigan and potential impacts on fish populations
Lake Michigan was invaded by zebra mussels (Dreissena polymorpha) in the late 1980s and then followed by quagga mussels (D. bugensis) around 1997. Through 2000, both species (herein Dreissena) were largely restricted to depths less than 50??m. Herein, we provide results of an annual lake-wide bottom trawl survey in Lake Michigan that reveal the relative biomass and depth distribution of Dreissena
Authors
D.B. Bunnell, C.P. Madenjian, J.D. Holuszko, J.V. Adams, J. R. P. French
Change in diel catchability of young-of-year yellow perch associated with establishment of dreissenid mussels
1. Non-native mussels have increased water clarity in many lakes and streams in North America and Europe. Diel variation in catchability of some fish species has been linked to visibility during survey trawls (used to measure escapement). 2. Water clarity increased in nearshore areas of western Lake Erie by the early 1990s, following passage of legislation in 1972 to improve water quality (e.g. re
Authors
Martin A. Stapanian, Patrick M. Kocovsky, Jean V. Adams
Comparisons between consumption estimates from bioenergetics simulations and field measurements for walleyes from Oneida Lake, New York
Daily consumption was estimated from the stomach contents of walleyes Sander vitreus collected weekly from Oneida Lake, New York, during June-October 1975, 1992, 1993, and 1994 for one to four age-groups per year. Field rations were highly variable between weeks, and trends in ration size varied both seasonally and annually. The coefficient of variation for weekly field rations within years and ag
Authors
B.F. Lantry, L. G. Rudstam, J.L. Forney, A.J. VanDeValk, E.L. Mills, D.J. Stewart, J.V. Adams