Richard T Quintal
Center Web Manager based in Ann Arbor, MI
I am the Great Lakes Science Center's Web Manager and an Information Technology Specialist. I'm currently focused on web content management and development, and data management processes.
Professional Experience
June 2023 to Present: Information Technology Specialist, Web Manager, Great Lakes Science Center, Ann Arbor, MI.
June 1994 to June 2023: Biological Technician, USGS, Great Lakes Science Center, Ann Arbor, MI.
Education and Certifications
B.S. Resource Ecology and Management, University of Michigan School of Natural Resources and Environment, 1993.
Science and Products
Publications by this scientist
Sexual difference in PCB concentrations of coho salmon (Oncorhynchus kisutch)
We determined polychlorinated biphenyl (PCB) concentrations in 35 female coho salmon (Oncorhynchus kisutch) and 60 male coho salmon caught in Lake Michigan (Michigan and Wisconsin, United States) during the fall of 1994 and 1995. In addition, we determined PCB concentrations in the skin-on fillets of 26 female and 19 male Lake Michigan coho salmon caught during the fall of 2004 and 2006. All coho
Authors
Charles P. Madenjian, Candy S. Schrank, Linda J. Begnoche, Robert F. Elliott, Richard T. Quintal
Time trends (1983-1999) for organochlorines and polybrominated diphenyl ethers in rainbow smelt (Osmerus mordax) from Lakes Michigan, Huron and Superior, USA
The U.S. Geological Service Great Lakes Science Center has archived rainbow smelt (Osmerus mordax) collected from the early 1980s to the present. These fish were collected to provide time- and site-dependent contaminant residue data needed by researchers and managers to fill critical data gaps regarding trends and behavior of persistent organic contaminants in the Great Lakes ecosystem. In the pre
Authors
Sergei M. Chernyak, Clifford P. Rice, Richard T. Quintal, Linda J. Begnoche, James P. Hickey, Bryan T. Vinyard
Comparisons of PBDE composition and concentration in fish collected from the Detroit River, MI and Des Plaines River, IL
Polybrominated diphenyl ethers (PBDEs) were identified in fish collected from the Detroit River, MI and Des Plaines Rivers, IL. In the Detroit River fish, carp and large mouth bass, the congener patterns were dominated by the 2,2′,4,4′-tetrabromo (BDE-47) congener; however, in Des Plaines River carp the dominant isomers were the heptabromo congeners BDE-181 and BDE-183 and lesser amounts of anothe
Authors
C.P. Rice, S.M. Chernyak, L. Begnoche, R. Quintal, J. Hickey
Variation in net trophic transfer efficiencies among 21 PCB congeners
We tested the hypothesis that the efficiency with which fish retain polychlorinated biphenyl (PCB) congeners from their food strongly depends on Kow and degree of chlorination of the congener. We used diet information, determinations of concentrations of individual PCB congeners in both coho salmon (Oncorhynchus kisutch) and their prey, and bioenergetics modeling to estimate the efficiencies with
Authors
C.P. Madenjian, L.J. Schmidt, S.M. Chernyak, R.F. Elliott, T.J. Desorcie, R.T. Quintal, L.J. Begnoche, R.J. Hesselberg
Estimate of net trophic transfer efficiency of PCBs to Lake Michigan lake trout from their prey
Most of the polychlorinated biphenyl (PCB) body burden accumulated by lake trout (Salvelinus namaycush) from the Laurentian Great Lakes is from their food. We used diet information, PCB determinations in both lake trout and their prey, and bioenergetics modeling to estimate the efficiency with which Lake Michigan lake trout retain PCBs from their food. Our estimates were the most reliable estimate
Authors
Charles P. Madenjian, Robert J. Hesselberg, Timothy J. Desorcie, Larry J. Schmidt, Ralph M. Stedman, Richard T. Quintal, Linda J. Begnoche, Dora R. Passino-Reader
Net trophic transfer efficiency of PCBs to Lake Michigan coho salmon from their prey
Most of the polychlorinated biphenyl (PCB) body burden accumulated by coho salmon (Oncorhynchus kisutch) from the Laurentian Great Lakes is from their food. We used diet information, PCB determinations in both coho salmon and their prey, and bioenergetics modeling to estimate the efficiency with which Lake Michigan coho salmon retain PCBs from their food. Our estimate was the most reliable estimat
Authors
Charles P. Madenjian, Robert F. Elliott, Larry J. Schmidt, Timothy J. Desorcie, Robert J. Hesselberg, Richard T. Quintal, Linda J. Begnoche, Patrick M. Bouchard, Mark E. Holey
Multimedia related to this scientist
Science and Products
Publications by this scientist
Sexual difference in PCB concentrations of coho salmon (Oncorhynchus kisutch)
We determined polychlorinated biphenyl (PCB) concentrations in 35 female coho salmon (Oncorhynchus kisutch) and 60 male coho salmon caught in Lake Michigan (Michigan and Wisconsin, United States) during the fall of 1994 and 1995. In addition, we determined PCB concentrations in the skin-on fillets of 26 female and 19 male Lake Michigan coho salmon caught during the fall of 2004 and 2006. All coho
Authors
Charles P. Madenjian, Candy S. Schrank, Linda J. Begnoche, Robert F. Elliott, Richard T. Quintal
Time trends (1983-1999) for organochlorines and polybrominated diphenyl ethers in rainbow smelt (Osmerus mordax) from Lakes Michigan, Huron and Superior, USA
The U.S. Geological Service Great Lakes Science Center has archived rainbow smelt (Osmerus mordax) collected from the early 1980s to the present. These fish were collected to provide time- and site-dependent contaminant residue data needed by researchers and managers to fill critical data gaps regarding trends and behavior of persistent organic contaminants in the Great Lakes ecosystem. In the pre
Authors
Sergei M. Chernyak, Clifford P. Rice, Richard T. Quintal, Linda J. Begnoche, James P. Hickey, Bryan T. Vinyard
Comparisons of PBDE composition and concentration in fish collected from the Detroit River, MI and Des Plaines River, IL
Polybrominated diphenyl ethers (PBDEs) were identified in fish collected from the Detroit River, MI and Des Plaines Rivers, IL. In the Detroit River fish, carp and large mouth bass, the congener patterns were dominated by the 2,2′,4,4′-tetrabromo (BDE-47) congener; however, in Des Plaines River carp the dominant isomers were the heptabromo congeners BDE-181 and BDE-183 and lesser amounts of anothe
Authors
C.P. Rice, S.M. Chernyak, L. Begnoche, R. Quintal, J. Hickey
Variation in net trophic transfer efficiencies among 21 PCB congeners
We tested the hypothesis that the efficiency with which fish retain polychlorinated biphenyl (PCB) congeners from their food strongly depends on Kow and degree of chlorination of the congener. We used diet information, determinations of concentrations of individual PCB congeners in both coho salmon (Oncorhynchus kisutch) and their prey, and bioenergetics modeling to estimate the efficiencies with
Authors
C.P. Madenjian, L.J. Schmidt, S.M. Chernyak, R.F. Elliott, T.J. Desorcie, R.T. Quintal, L.J. Begnoche, R.J. Hesselberg
Estimate of net trophic transfer efficiency of PCBs to Lake Michigan lake trout from their prey
Most of the polychlorinated biphenyl (PCB) body burden accumulated by lake trout (Salvelinus namaycush) from the Laurentian Great Lakes is from their food. We used diet information, PCB determinations in both lake trout and their prey, and bioenergetics modeling to estimate the efficiency with which Lake Michigan lake trout retain PCBs from their food. Our estimates were the most reliable estimate
Authors
Charles P. Madenjian, Robert J. Hesselberg, Timothy J. Desorcie, Larry J. Schmidt, Ralph M. Stedman, Richard T. Quintal, Linda J. Begnoche, Dora R. Passino-Reader
Net trophic transfer efficiency of PCBs to Lake Michigan coho salmon from their prey
Most of the polychlorinated biphenyl (PCB) body burden accumulated by coho salmon (Oncorhynchus kisutch) from the Laurentian Great Lakes is from their food. We used diet information, PCB determinations in both coho salmon and their prey, and bioenergetics modeling to estimate the efficiency with which Lake Michigan coho salmon retain PCBs from their food. Our estimate was the most reliable estimat
Authors
Charles P. Madenjian, Robert F. Elliott, Larry J. Schmidt, Timothy J. Desorcie, Robert J. Hesselberg, Richard T. Quintal, Linda J. Begnoche, Patrick M. Bouchard, Mark E. Holey
Multimedia related to this scientist