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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Age and growth of round gobies in Lake Michigan, with preliminary mortality estimation
Laboratory estimation of net trophic transfer efficiencies of PCB congeners to lake trout (Salvelinus namaycush) from its prey
Polychlorinated biphenyl congener distributions in burbot: evidence for a latitude effect
Mercury elimination rates for adult northern pike Esox lucius: evidence for a sex effect
Males exceed females in PCB concentrations of cisco (Coregonus artedi) from Lake Superior
Ecological factors affecting Rainbow Smelt recruitment in the main basin of Lake Huron, 1976-2010
Polychlorinated biphenyl concentrations of burbot Lota lota from Great Slave Lake are very low but vary by sex
A multispecies statistical age-structured model to assess predator-prey balance: application to an intensively managed Lake Michigan pelagic fish community
Mercury accumulation in sea lamprey (Petromyzon marinus) from Lake Huron
Comparative recruitment dynamics of Alewife and Bloater in Lakes Michigan and Huron
Increased piscivory by lake whitefish in Lake Huron
Introduction to a special section: Ecology, culture, and management of Burbot
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Filter Total Items: 161Age and growth of round gobies in Lake Michigan, with preliminary mortality estimation
The round goby (Neogobius melanostomus) is a prevalent invasive species throughout Lake Michigan, as well as other Laurentian Great Lakes, yet little information is available on spatial variation in round goby growth within one body of water. Age and growth of round goby at three areas of Lake Michigan were studied by otolith analysis from a sample of 659 specimens collected from 2008 to 2012. TotAuthorsBin Huo, Charles P. Madenjian, Cong X. Xie, Yingming Zhao, Timothy P. O'Brien, Sergiusz J. CzesnyLaboratory estimation of net trophic transfer efficiencies of PCB congeners to lake trout (Salvelinus namaycush) from its prey
A technique for laboratory estimation of net trophic transfer efficiency (γ) of polychlorinated biphenyl (PCB) congeners to piscivorous fish from their prey is described herein. During a 135-day laboratory experiment, we fed bloater (Coregonus hoyi) that had been caught in Lake Michigan to lake trout (Salvelinus namaycush) kept in eight laboratory tanks. Bloater is a natural prey for lake trout. IAuthorsCharles P. Madenjian, Richard R. Rediske, James P. O'Keefe, Solomon R. DavidPolychlorinated biphenyl congener distributions in burbot: evidence for a latitude effect
We compared the distributions of the congeners of polychlorinated biphenyls (PCBs) detected in whole-body samples of burbot (Lota lota) from Great Slave Lake and Lake Erie. Total PCB concentrations in Great Slave Lake burbot were about 1/60 of the concentrations in Lake Erie burbot. Burbot from Great Slave Lake contained a higher proportion of lower-chlorinated (2-6 chlorines) congeners than didAuthorsMartin A. Stapanian, Charles P. Madenjian, Peter A. Cott, Richard R. Rediske, James P. O'KeefeMercury elimination rates for adult northern pike Esox lucius: evidence for a sex effect
We examined the effect of sex on mercury elimination in fish by monitoring isotope-enriched mercury concentrations in the muscle tissue of three adult female and three adult male northern pike Esox lucius, which had accumulated the isotope-enriched mercury via a whole-lake manipulation and were subsequently moved to a clean lake. Mercury elimination rates for female and male northern pike were estAuthorsCharles P. Madenjian, Paul J. Blanchfield, Lee E. Hrenchuk, Jillian L. A. Van WalleghemMales exceed females in PCB concentrations of cisco (Coregonus artedi) from Lake Superior
We determined whole-fish polychlorinated biphenyl (PCB) concentrations of 25 male and 25 female age-7 ciscoes (Coregonus artedi) captured from a spawning aggregation in Thunder Bay, Lake Superior, during November 2010. We also determined PCB concentrations in the ovaries and somatic tissue of five additional female ciscoes (ages 5–22). All 55 of these ciscoes were in ripe or nearly ripe condition.AuthorsCharles P. Madenjian, Daniel L. Yule, Sergei M. Chernyak, Linda J. Begnoche, Eric K. Berglund, Edmund J. IsaacEcological factors affecting Rainbow Smelt recruitment in the main basin of Lake Huron, 1976-2010
Rainbow Smelt Osmerus mordax are native to northeastern Atlantic and Pacific–Arctic drainages and have been widely introduced throughout North America. In the Great Lakes region, Rainbow Smelt are known predators and competitors of native fish and a primary prey species in pelagic food webs. Despite their widespread distribution, importance as a prey species, and potential to negatively interact wAuthorsTimothy P. O'Brien, William W. Taylor, Edward F. Roseman, Charles P. Madenjian, Stephen C. RileyPolychlorinated biphenyl concentrations of burbot Lota lota from Great Slave Lake are very low but vary by sex
Total polychlorinated biphenyl concentrations (ΣPCBs) in whole fish were determined for 18 ripe female burbot Lota lota and 14 ripe male burbot from Great Slave Lake, a lake with no known point sources of PCBs. In addition, ΣPCBs were determined both in the somatic tissue and in the gonads for a randomly selected subset of five females and five males. Mean ΣPCBs for females and males were 2.89 aAuthorsCharles P. Madenjian, Martin A. Stapanian, Peter A. Cott, Richard R. Rediske, James P. O'KeefeA multispecies statistical age-structured model to assess predator-prey balance: application to an intensively managed Lake Michigan pelagic fish community
Using a Bayesian model fitting approach, we developed a multispecies statistical catch-at-age model to assess trade-offs between predatory demands and prey productivities, focusing on the Lake Michigan pelagic fish community. We assessed these trade-offs in terms of predation mortalities and productivities of alewife (Alosa pseudoharengus) and rainbow smelt (Osmerus mordax) and functional responseAuthorsIyob Tsehaye, Michael L. Jones, James R. Bence, Travis O. Brenden, Charles P. Madenjian, David M. WarnerMercury accumulation in sea lamprey (Petromyzon marinus) from Lake Huron
We determined whole-fish total mercury (Hg) concentrations of 40 male and 40 female adult sea lampreys (Petromyzon marinus) captured in the Cheboygan River, a tributary to Lake Huron, during May 2011. In addition, bioenergetics modeling was used to explore the effects of sex-related differences in activity and resting (standard) metabolic rate (SMR) on mercury accumulation. The grand mean for Hg cAuthorsCharles P. Madenjian, Nicholas S. Johnson, Michael J. Siefkes, John M. Dettmers, Joel D. Blum, Marcus W. JohnsonComparative recruitment dynamics of Alewife and Bloater in Lakes Michigan and Huron
The predictive power of recruitment models often relies on the identification and quantification of external variables, in addition to stock size. In theory, the identification of climatic, biotic, or demographic influences on reproductive success assists fisheries management by identifying factors that have a direct and reproducible influence on the population dynamics of a target species. More oAuthorsParis D. Collingsworth, David B. Bunnell, Charles P. Madenjian, Stephen C. RileyIncreased piscivory by lake whitefish in Lake Huron
We evaluated the diet of Lake Whitefish Coregonus clupeaformis in Lake Huron during 2002–2011 to determine the importance of Round Goby Neogobius melanostomus and other fish as prey items. Lake Whitefish that had reached approximately 400 mm in length incorporated fish into their diets. The overall percentage of adult Lake Whitefish in Lake Huron that had eaten fish increased from 10% in 2002–2006AuthorsSteven A. Pothoven, Charles P. MadenjianIntroduction to a special section: Ecology, culture, and management of Burbot
The Burbot Lota lota is the only truly freshwater member of the cod family (Gadidae) and one of only two species of freshwater fish that have a circumpolar range (McPhail and Lindsey 1970; McPhail and Paragamian 2000). Two subspecies of Lota lota have been documented: Lota lota maculosa, which is found exclusively in North America from south of Great Slave Lake in Canada to the southern limit of iAuthorsMartin A. Stapanian, Charles P. Madenjian - News