Timothy S. Gross
Research Physiologist
USGS-Biological Resources Division
Florida Caribbean Science Center, Ecotoxicology Program
7920 NW 71st St., Gainesville, FL 32653
Phone 352-378-8181 Ext. 323, FAX 352-378-4956, E-Mail Tim_s_gross@usgs.gov

EDUCATION AND DEGREES
Ph.D. 1986 Reproductive Physiology; University of Maryland, Dept. Animal Sciences, College Park, MD
M.S. 1978 Zoology/Physiology; Indiana University of Pennsylvania, Biology Department, Indiana, PA.
B.S. 1975 Zoology; Indiana University of Pennsylvania, Biology Department, Indiana, PA.

PROFESSIONAL EXPERIENCE
Research Physiologist/Ecotoxicologist, USGS-Biological Resources Division, Florida Caribbean Science Center, Ecotoxicology Program, Gainesville, FL, November 1997-present
Associate Scientist, Dept. Physiological Sciences, Center for Environmental & Human Toxicology, College of Veterinary Medicine, Univ.of Florida, Gainesville, Nov. 1997-present (non-tenured associate professor)
Associate Scientist/Scientific, Biotechnologies for The Ecological, Evolutionary and Conservation Sciences Program, Center for Biotechnology Research, Univ. of Florida, Gainesville, July 1992-October 1997..
Reproductive Physiologist/Director of Research, Omaha's Henry Doorly Zoo, Omaha, NE, Feb. 1989-June 1992.
Post-Doctoral Research Associate, Dept.Dairy Science, Univ. of Florida, Gainesville, June 1986- January 1989.

PUBLICATIONS

Selected Journal Articles: (over 60 refereed publications)
Guillette, L.J., T.S. Gross, G.R. Masson, J.M. Matter, H.F. Percival and A.R. Woodward. Developmental abnormalities of the gonad of juvenile alligators from contaminated and control lakes in Florida. Environmental Health Perspectives, 102:680-688. 1994.
Gross, T.S., L.J. Guillette, H.F. Percival, G.R. Masson, J.M. Matter, A.R. Woodward. Contaminant induced reproductive anomalies in Florida alligators. Comp. Path Bull. 4:2-8. 1994.
Goodbread, S.L., R.J. Gilliom, T.S. Gross, N.D. Denslow and W. Bryant. Reconnaissance of 17-beta-estradiol , 11-keto-testosterone and vitellogenin in common carp of United States Streams: potential contaminant effects on the endocrine system. Water resources Investigative Report, 1997.
Gallagher, E.P., T.S. Gross, K.M. Sheehy, C. Wieser, M.W. Lame and H.J. Seagall. Decreased glutathione s-transferase conjugation capacity and altered sex steroids in brown bullhead catfish from contaminated sites in central Florida. Aquatic Toxicology, 55:223-237, 2001.
McMaster M.E., J.J. Jardine, G.T. Ankley, W.H. Benson, M.S. Greely, T.S. Gross, L.J. Guillette, D.L. MacLatchy, E.F. Orlando, G.J. VanDerKraak, and K.R. Munkittrick. An Interlaboratory study on the use of steroid hormones in examining endcorine dsiruption. Envir. Tox. And Che,. 20:2081-2087. 2001.
Gross, T.S., M.S. Sepulveda, C.M. Wieser, J.J. Wiebe, T.R. Schoeb, N.D. Denslow, and W.E. Johnson. Seasonal reproductive cycles for Florida largemouth bass. Fisheries, Black Bass Issue, In Press 2001.
Sepulveda, M.S., D.A. Gross, W.E. Johnson, C.M. Wieser, J.J. Wiebe and T.S. Gross. An evaluation of clinical methods for health assessment in Florida largemouth bass. Fisheries, - Black Bass Issue, In Press 2001.
Sepulveda, M.S., D.S. Ruessler, N.D. Denslow, S.E. Holm, T.R. Schoeb and T.S. Gross. Assessment of reproductive effects in largemouth bass exposed to bleached/unbleached kraft mill effluents. Submitted to the Archives of Env. Contamination and Toxicology, 41:475-482, 2001.
Sepulveda, M.S., W.E. Johnson, J.C. Higman, N.D. Denslow, T.R. Schoeb and T.S. Gross. An evaluation of biomarkers of reproductive function and potential contaminant effects in Florida largemouth bass sampled from the St. Johns River. Science of the Total Environment, 289:133-144, 2001.
Rotstein, D.S., B. Arnold, T.R. Schoeb, H.F. Percival, L.M. Davis, T.C. Glenn and T.S. Gross. Detection by microsatellite analysis of early mortality in an alligator population in Florida. J. Wildlife Diseases . In Press 2002.

Abstracts and Papers Presented: (over 135 total)