Charles P Madenjian, PhD
Charles P. Madenjian is a Research Fishery Biologist in the Lake Michigan Section of the Deepwater Sciences Branch of the U.S. Geological Survey (USGS) Great Lakes Science Center. He is stationed at the USGS Great Lakes Science Center headquarters in Ann Arbor, Michigan.
The scientist’s research efforts can be categorized into four theme areas: (1) fish community dynamics and native fish restoration in the Laurentian Great Lakes, (2) invasion biology in the Laurentian Great Lakes, (3) bioenergetics modeling, and (4) contaminant accumulation in fish. The scope of the scientist’s research varies across these four theme areas. For fish community dynamics, native fish restoration, and invasion biology, the scientist’s research is focused on Lake Michigan, given the scientist’s assignment to the Lake Michigan Section. However, comparing Lake Michigan with the other Laurentian Great Lakes is within the scientist’s scope of research. Much of the scientist’s research work emanates from these inter-lake comparisons. Data available for analysis of fish community dynamics, native fish restoration, and invasion biology extend back to the 1960s, or even earlier in some cases. These long-term time series represent a valuable resource for trying to identify the important factors regulating fish community dynamics, native fish restoration, and effects of invasives on the fish community. For bioenergetics modeling and contaminant accumulation in fish, the scientist’s focus is on the Laurentian Great Lakes. Nonetheless, for both bioenergetics modeling and contaminant accumulation in fish, the scientist’s scope of research is global, because the scientist examines results from studies around the world to advance our knowledge in both fields. Bioenergetics modeling can be applied to organisms and populations around the world. Analogously, fish from all areas of the globe accumulate environmental contaminants, such as mercury (Hg) and polychlorinated biphenyls (PCBs). The scientist collaborates with scientists and researchers both within the Laurentian Great Lakes basin and outside the basin, with most of the collaborations within the basin. Even so, collaborations have been forged with researchers across the United States, Canada, Europe, and China. Much of the funding received by the scientist is drawn from the base budget of the USGS Great Lakes Science Center (GLSC), because the GLSC has been mandated to maintain long-term surveys for fish communities in the Laurentian Great Lakes, and maintaining these surveys is part of the scientist’s assigned duties. Supplemental funding has been provided by the Great Lakes Fishery Commission, the Great Lakes Fishery Trust, the Great Lakes Fish and Wildlife Restoration Act, and the USGS Climate Adaptation Science Center.
Professional Experience
March 1995-present; Research Fishery Biologist; NBS/USGS Great Lakes Science Center. Duties: Research on prey fish dynamics, food web dynamics, lake trout population dynamics in Lakes Michigan and Huron, laboratory and field evaluations of fish bioenergetics models, using PCBs as a tracer of food consumption by fish, contaminant accumulation in fish, effects of invasives on food web dynamic
January 1992-March 1995; Research Fishery Biologist; USFWS/NBS Lake Erie Biological Station. Duties: Research on life-history characteristics, population dynamics, and stock-recruitment relationships of Lake Erie fishes; also bioenergetics modeling of zebra mussels and waterbirds.
1990-1991; Associate Researcher; Center for Limnology, University of Wisconsin. Duties: Research on variability in contaminant accumulation rates within populations of Lake Michigan salmonines, via individual-based modeling.
1989-1990; Postdoctoral Fellow; Center for Limnology, University of Wisconsin. Duties: Basic and applied research on variability in growth rates of age-0 walleyes (Sander vitreus), using individual-based modeling.
1988-1989; Associate Researcher; Hawaii Natural Energy Institute, University of Hawaii. Duties: Research on prediction of primary production and secondary production in artificial upwellings, via computer simulation modeling.
1983-1988; Graduate Research Assistant; Hawaii Institute of Marine Biology, University of Hawaii. Duties: Research on predicting overnight loss of dissolved oxygen from aquaculture ponds, using computer simulation modeling.
1980-1983; Research Associate; Great Lakes Research Division, University of Michigan. Duties: Research on the impact of the J. H. Campbell Power Plant and D. C. Cook Power Plant on fish populations in eastern Lake Michigan.
1978-1980; Research Assistant; Great Lakes Research Division, University of Michigan. Duties: Research on the impact of the J. H. Campbell Power Plant on fish populations in eastern Lake Michigan.
1977-1978; Research Assistant; University of Michigan. Duties: Research on time series analysis of fishery catch and effort.
1976-1977; Teaching Assistant; School of Natural Resources, University of Michigan. Duties: Assisted in teaching an introductory course on applied statistics.
Education and Certifications
Ph.D., Zoology, University of Hawaii, 1988.
M.S., Resource Ecology, University of Michigan, 1979.
B.S., Aquatic Biology (minor in mathematics), Rutgers University, 1975.
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Decline in bloater fecundity in Southern Lake Michigan after decline of Diporeia
Status and trends of prey fish populations in Lake Michigan, 2008
Adaptations in a hierarchical food web of southeastern Lake Michigan
Expansion of Dreissena into offshore waters of Lake Michigan and potential impacts on fish populations
Sexual difference in PCB concentrations of walleyes (Sander vitreus) from a pristine lake
Gender difference in walleye PCB concentrations persists following remedial dredging
Net trophic transfer efficiencies of polychlorinated biphenyl congeners to lake whitefish (Coregonus clupeaformis) from their food
Changes in consumption by alewives and lake whitefish after dreissenid mussel invasions in Lakes Michigan and Huron
New estimates of lethality of sea lamprey (Petromyzon marinus) attacks on lake trout (Salvelinus namaycush): Implications for fisheries management
Restoring piscivorous fish populations in the Laurentian Great Lakes causes seabird dietary change
Annual variation in habitat-specific recruitment success: Implications from an individual-based model of Lake Michigan alewife (Alosa pseudoharengus)
Trophic transfer efficiency of mercury to lake whitefish Coregonus clupeaformis from its prey
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Filter Total Items: 161Decline in bloater fecundity in Southern Lake Michigan after decline of Diporeia
Population fecundity can vary through time, sometimes owing to changes in adult condition. Consideration of these fecundity changes can improve understanding of recruitment variation. Herein, we estimated fecundity of Lake Michigan bloater Coregonus hoyi during December 2005 and February 2006. Bloater recruitment has been highly variable from 1962 to present, and consistently poor since 1992. We cAuthorsD.B. Bunnell, S.R. David, C.P. MadenjianStatus 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 tuAuthorsDavid B. Bunnell, Charles P. Madenjian, Jeffrey D. Holuszko, Timothy J. Desorcie, Jean V. AdamsAdaptations in a hierarchical food web of southeastern Lake Michigan
Two issues in ecological network theory are: (1) how to construct an ecological network model and (2) how do entire networks (as opposed to individual species) adapt to changing conditions? We present a novel method for constructing an ecological network model for the food web of southeastern Lake Michigan (USA) and we identify changes in key system properties that are large relative to their unceAuthorsAnn E. Krause, Ken A. Frank, Michael L. Jones, Thomas F. Nalepa, Richard P. Barbiero, Charles P. Madenjian, Megan Agy, Marlene S. Evans, William W. Taylor, Doran M. Mason, Nancy J. LéonardExpansion 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 DreissenaAuthorsD.B. Bunnell, C.P. Madenjian, J.D. Holuszko, J.V. Adams, J. R. P. FrenchSexual difference in PCB concentrations of walleyes (Sander vitreus) from a pristine lake
We determined polychlorinated biphenyl (PCB) concentrations in 15 adult female walleyes (Sander vitreus) and 15 adult male walleyes from South Manistique Lake (Michigan, United States), a relatively pristine lake with no point source inputs of PCBs. By measuring PCB concentration in gonads and in somatic tissue of the South Manistique Lake fish, we also estimated the expected change in PCB concentAuthorsC.P. Madenjian, P.A. Hanchin, S.M. Chernyak, L.J. BegnocheGender difference in walleye PCB concentrations persists following remedial dredging
Eleven male walleyes (Sander vitreus) and 10 female walleyes from the Saginaw Bay (Lake Huron) population were caught during the spawning run at Dow Dam (Midland, Michigan) in the Tittabawassee River during April 1996, and individual whole-fish polychlorinated biphenyl (PCB) determinations were made. Total PCB concentrations averaged 7.95 and 3.17??mg/kg for males and females, respectively. As parAuthorsCharles P. Madenjian, David J. Jude, Richard R. Rediske, James P. O'Keefe, George E. NoguchiNet trophic transfer efficiencies of polychlorinated biphenyl congeners to lake whitefish (Coregonus clupeaformis) from their food
Lake whitefish (Coregonus clupeaformis) were fed rainbow smelt (Osmerus mordax) in four laboratory tanks over a 133-d experiment. At the start of the experiment, 10 to 14 of the fish in each tank were sacrificed, and the concentrations of 40 polychlorinated biphenyl (PCB) congeners within these fish were determined. Polychlorinated biphenyl congener concentrations were also determined in the 15 laAuthorsC.P. Madenjian, D.V. O'Connor, R.R. Rediske, J. P. O'Keefe, S.A. PothovenChanges in consumption by alewives and lake whitefish after dreissenid mussel invasions in Lakes Michigan and Huron
Growth of alewives Alosa pseudoharengus and lake whitefish Coregonus clupeaformis has declined since the arrival and spread of dreissenid mussels in Lakes Michigan and Huron. Alewives are the main forage for the salmonids in Lake Michigan, and lake whitefish are the most important commercial species in both lakes. Bioenergetics modeling was used to determine consumption by the average individual fAuthorsS.A. Pothoven, C.P. MadenjianNew estimates of lethality of sea lamprey (Petromyzon marinus) attacks on lake trout (Salvelinus namaycush): Implications for fisheries management
Sea lamprey (Petromyzon marinus) control in North America costs millions of dollars each year, and control measures are guided by assessment of lamprey-induced damage to fisheries. The favored prey of sea lamprey in freshwater ecosystems has been lake trout (Salvelinus namaycush). A key parameter in assessing sea lamprey damage, as well as managing lake trout fisheries, is the probability of an adAuthorsC.P. Madenjian, B.D. Chipman, J.E. MarsdenRestoring piscivorous fish populations in the Laurentian Great Lakes causes seabird dietary change
Ecosystem change often affects the structure of aquatic communities thereby regulating how much and by what pathways energy and critical nutrients flow through food webs. The availability of energy and essential nutrients to top predators such as seabirds that rely on resources near the water's surface will be affected by changes in pelagic prey abundance. Here, we present results from analysis ofAuthorsC.E. Hebert, D.V.C. Weseloh, A. Idrissi, M.T. Arts, R. O'Gorman, O. T. Gorman, B. Locke, C.P. Madenjian, E.F. RosemanAnnual variation in habitat-specific recruitment success: Implications from an individual-based model of Lake Michigan alewife (Alosa pseudoharengus)
The identification of important spawning and nursery habitats for fish stocks can aid fisheries management, but is complicated by various factors, including annual variation in recruitment success. The alewife (Alosa pseudoharengus) is an ecologically important species in Lake Michigan that utilizes a variety of habitats for spawning and early life growth. While productive, warm tributary mouths (AuthorsT.O. Hook, E.S. Rutherford, T.E. Croley, D.M. Mason, C.P. MadenjianTrophic transfer efficiency of mercury to lake whitefish Coregonus clupeaformis from its prey
In the laboratory, net trophic transfer efficiency of mercury to lake whitefish Coregonus clupeaformis from its prey was estimated to be 63.5%. Assuming that gross trophic transfer efficiency of mercury to lake whitefish from its prey was equal to 80%, we estimated that the rate at which lake whitefish eliminated mercury was 0.000730 day-1. Our laboratory estimate of mercury elimination rate was 2AuthorsC.P. Madenjian, D.V. O'Connor - News