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U.S. Geological Survey - Great Lakes Science Center

Timothy O'Brien


Supervisory Fishery Biologist Great Lakes Science Center Email: Phone: (734) 214-7266 Fax: (734) 994-8780 Professional Page:

Current Studies

Rainbow Smelt Recruitment in Lake Huron

This study had two components: 1) researching early life history dynamics and 2) modeling the stock-recruit relationship for Lake Huron rainbow smelt. This study is in the finishing stages with one of two planned manuscripts published and the second manuscript near completion.

Principal Investigator: Tim O'Brien

Recent Publications

Patricia A. Thompson, Edward F. Roseman, Kevin M. Keeler, Timothy P. O’Brien, and Dustin A. Bowser 2017. Continued feeding on Diporeia by deepwater sculpin in Lake Huron. Springer . Environmental Biology of Fishes .
Contribution #2095
Carson G. Prichard, Edward F. Roseman, Kevin M. Keeler, Timothy P. O'Brien, and Stephen C. Riley 2016. Large-Scale Changes in Bloater Growth and Condition in Lake Huron. Taylor & Francis . Transactions of the American Fisheries Society . 145 (6). 1241-1251.
Contribution #2068
O'Brien, Timothy P., William W. Taylor, Edward F. Roseman, Charles P. Madenjian, Stephen C. Riley 2014. Ecological Factors Affecting Rainbow Smelt Recruitment in the Main Basin of Lake Huron, 1976-2010. Transactions of the American Fisheries Society . 143 (3). 784-795.
Contribution #1839
Huo, Bin, Charles P. Madenjian, Cong X. Xie, Yingming Zhao, Timothy P. O'Brien, Sergiusz J. Czesny 2014. Age and growth of round gobies in Lake Michigan, with preliminary mortality estimation. Elsevier . Journal of Great Lakes Research . 40 (3). 712-720.
Contribution #1865
Jeremy J. Pritt, Edward F. Roseman, and Timothy P. O'Brien 2014. Mechanisms driving recruitment variability in fish: comparisons between the Laurentian Great Lakes and marine systems. Oxford University Press . ICES Journal of Marine Science . 71 (8). 2252-2267.
Contribution #1847

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