Cooperative Fish and Wildlife Research Units Program: West Virginia
Education, Research and Technical Assistance for Managing Our Natural Resources

West Virginia Staff Member


Dr. Patricia Mazik

Dr. Pat Mazik, teaching Fish Physiology

Unit Leader
Phone: (304) 293 - 4943
Email: pmazik@usgs.gov
Faculty Email: pmazik@wvu.edu

Education

  • Ph D University of Memphis 1989
  • MS Texas State University - San Marcos 1985
  • BS University of Mount Union 1983

Biography

Dr. Mazik received her BS from the University of Mount Union, MS from Univ. of Texas at San Marcos and PhD from the University of Memphis. She has been at the Coop Unit since 1998.

Teaching Interest

Dr. Mazik teaches classes in Fish Physiology and Aquatic Toxicology

Research Interest

Dr. Mazik's research emphasis is stress physiology and the effects of contaminants on fish.

Research Publications Publication Date
Wysocki, L. E., J. Davidson, M. Smith, A. Frankel, W. Ellison, P. M. Mazik, A. N. Popper and J. Bebak. In Press. Effects of aquaculture production noise on hearing, growth and disease resistance of rainbow trout Oncorhynchus mykiss. Aquaculture Engineering August 2007
Walsh, H.L., V.S. Blazer and P.M. Mazik. 2021. Identification of Aphanomyces invadans, the cause of epizootic ulcerative syndrome, in smallmouth bass (Micropterus dolomieu) from the Cheat River, West Virginia, USA. Journal of Fish Diseases 44:1639-1641. August 2021
Waldrop, T., S. Summerfelt, P. Mazik, and C. Good. Comparing the effects of swimming exercise and dissolved oxygen on the performance, health, and welfare of early-rearing Atlantic salmon Salmo salar. Aquaculture Research. | Abstract September 2017
Waldrop, T., S. Summerfelt, P. Mazik, P.B. Kenney and C. Good. The effects of swimming exercise and dissolved oxygen on growth performance, fin condition and survival of rainbow trout, Oncorhynchus mykiss. Aquaculture Research https://doi.org/10.1111/are.14600h July 2020
Tiersch, T. R., and P. M. Mazik. 2000. Cryopreservation in Aquatic Species. T. R. Tiersch and P. M. Mazik, editors. World Aquaculture Society, Baton Rouge, Louisiana. 439 Pages. March 2000
Petty, T. J., J.L. Hansbarger, B.M Huntsman and P.M. Mazik. 2012. Differential movement by brook trout and brown trout along a stream size continuum in a central Appalachian watershed. Transactions of the American Fisheries Society. 141:4 Pages 1060-1073. | Abstract September 2012
Petty, J. T., P. J. Lamothe, and P. M. Mazik. 2005. Spatial and seasonal dynamics of brook trout populations inhabiting a central Appalachian watershed. Transactions of the American Fisheries Society 134:572-587. June 2005
Petty, J. T., J. Freund, P. Lamothe, and P. M. Mazik. 2001. Quantifying instream habitat in the upper shavers fork basin at multiple spatial scales. Proceeding of the Annual Conference of the Southeastern Association of Fish and Wildlife Agencies. 55:81-94 September 2002
Nickum, M. J., P. M. Mazik, J. D. Nickum and D. MacKinlay, editors. 2004. Propagated Fish in Resource Management. American Fisheries Society, Symposium 44, American Fisheries Society, Bethesda, Maryland. 644 Pages. January 2005
Mynsberge, A.R., M.P. Strager, J.M. Strager and P.M. Mazik. 2009. Developing predictive models for freshwater mussels (Mollusca: Unionidae) in the Appalachians: Limitations and directions for future research. Ecoscience 16:387-398 | Abstract November 2009
McClurg, S., J. T. Petty, P. M. Mazik, J. Clayton. 2007. Stream ecosystem response to limestone treatment in acid impacted watersheds of the Allegheny Plateau. Ecological Applications 17:1087-1104. April 2007
Mazik, P.M., R. P. Braham, C. M. Hahn, and V.S. Blazer. 2015. Assessment of general and reproductive health of fishes at selected sites in the Great Lakes Basin in 2012. Department of Interior, Fish and Wildlife Service, Cooperator Science Series FWS/CSS-112-2015, Washington, D.C. | Download April 2015
Mazik, P. M., and N. C. Parker. 2001. Semi-intensive culture systems in G. Wedemeyer, editor. Fish Hatchery Management, 2nd Edition. Pages 241-284. American Fisheries Society, Bethesda, Maryland. September 2001
Mazik, P. M., N. C. Parker, and B. A. Simco. 2001. Relation of environmental calcium and pH to the stress response of striped bass. Proceeding of the Annual Conference of the Southeastern Association of Fish and Wildlife Agencies 55:208-217. September 2002
Mazik, P. M., B. A. Simco, and N. C. Parker. 2002. Influence of water hardness, salts and MS-222 on survival of Phase I striped bass during and after transport. Proceedings of the Southeastern Association of Fish and Wildlife Agencies. 56:75-78. August 2002
Mazik, P. M., B. A. Simco and N. C. Parker. 2000. Influence of sodium and calcium chloride on the stress response and survival of striped bass during and after transport from a hard and soft water hatchery. Proceeding of the Annual Conference of the Southeastern Association of Fish and Wildlife Agencies 54:118-127 September 2001
Matsche, M.A., V.S. Blazer and P.M. Mazik. 2019. Seasonal development of the coccidian parasite Goussia bayae and hepatobiliary histopathology in white perch Morone americana from Chesapeake Bay. Diseases of Aquatic Organisms. 134:112-135. DOI: https://doi.org/10.3354/dao03353 May 2019
Matsche, M.A., V.S. Blazer and P.M. Mazik. 2019. Comparisons of stereological and other approaches for quantifying macrophage aggregates in piscine spleens. Journal of Aquatic Animal Health. In Press. ISSN: 0899-7659 print / 1548-8667 online
DOI: 10.1002/aah.10086
August 2019
Matsche, M. A., V. S. Blazer, E. L. Pulster and P. M. Mazik. "High prevalence of biliary neoplasia in white perch Morone americana from Chesapeake Bay, Maryland, USA: potential roles of bile duct parasites and environmental contaminants." Diseases of Aquatic Organisms, 141:195-224. September 2020
Matsche, M. A., H. L. Walsh, V. S. Blazer, and P. M. Mazik. 2019. Newly described coccidia Goussia bayae from white perch Morone americana: morphology and phylogenetics support emerging taxonomy of Goussia within Piscine Hosts. Journal of Parasitology 105(1):1-10. October 2019
Matsche, M. A.*, V. S. Blazer, E. L. Pulster and P. M. Mazik. 2021. Biological and anthropogenic influences on macrophage aggregates in white perch Morone americana from Chesapeake Bay, USA. Diseases of Aquatic Organisms, 143:79-100. February 2021
Jittinandana, S., P. B. Kenney, S. D. Slider, P. Mazik, J. Bebak-Williams, and J. A. Hankins. 2003. Effect of handling stress on quality of smoked Arctic Char (Salvelinus alpinus) fillets. Journal of Food Science 68:58-63. October 2002
Jittinandana S., P. B. Kenney, P. M. Mazik, M. Danley, C. D. Nelson, R. A. Kiser, and J. A. Hankins. 2005. Transport treatment and stunning method affect quality of arctic char fillets. Journal of Muscle Foods 16:274-288. June 2005
Jennings, C. A., M. Allen, C. Belcher, R. Bringolf, D. Dennerline, T. Goar, K. Kuklinski, J. Long, P. Mazik, D. Riecke, and M. Rogers. Congratulations on Your Promotion to Management: Considerations for New Supervisory Biologists. 2020. Journal of the Southeastern Association of Fish and Wildlife Agencies 7:103-113. | Abstract | Publisher Website March 2020
Hoffman, J.C., V.S. Blazer, H.H. Walsh, C.H. Shaw, R. Braham, and P.M. Mazik. 2020.
Tracing habitat use with stable isotopes for tumor assessment of a demersal fish in an urban, coastal river. Science of the Total Environment712 https://doi.org/10.1016/j.scitotenv.2020.136512,
May 2020
Hartman, K.J., C.D. Horn and P.M. Mazik 2010. Influence of multiple anthropogenic stressors on Mortality of the Crayfish Cambarus bartonii in an Appalachian River. Journal of Freshwater Ecology 25:19-30. | Abstract May 2010
Hansbarger, J., J. T. Petty and P. M. Mazik. 2009. Brook trout movement within a high elevation watershed. Proceeding of the Annual Conference of the Southeastern Association of Fish and Wildlife Agencies 62:142-148. June 2009
Hahn, C.M., L.R. Iwanowicz, R.S. Cornman, P.M. Mazik and V.S. Blazer. 2016. Whole transcriptome sequencing for the development of transcript abundance biomarkers in non-model fish species. Journal of Comparative Biochemistry and Physiology: Part D, 20:27-40 August 2016
Hafs, A.W., P.M. Mazik, P.B. Kenney and J. Silverstein. 2012. Impact of carbon dioxide level, water velocity, and feeding regimen on growth and fillet attributes of cultured rainbow trout (Oncorhynchus mykiss). Aquaculture. 350-353:pages 46-53. | Abstract August 2012
Hafs, A.W., C.D. Horn, P.M. Mazik and K.J. Hartman. 2010. Influences of Acid Mine Drainage and Thermal Enrichment on Stream Fish Reproduction and Larval Survival. Northeastern Naturalist. 17:575-592. | Abstract August 2011
Ekman, D.R., G.T. Ankley, V.S. Blazer, T.W. Collette, N. Garcia-Reyero, L.R. Iwanowicz, Z.G. Jorgenson, K.E. Lee, P.M. Mazik, D.H. Miller, E.J. Perkins, E.T. Smith, J.E. Tietge, and D.L. Villeneuve. 2013. Biological Effects-based Tools for Monitoring Impacted Surface Waters in the Great Lakes: A Multi-Agency Program in Support of the GLRI. Environmental Practice. Accepted for Publication. | Abstract January 2014
Davidson, J., J. Bebak and P. M. Mazik. 2008. The Effects of Aquaculture Production Noise on the Growth, Condition Factor, Feed Conversion, and Survival of Rainbow Trout, Oncorhynchus mykiss. Aquaculture submitted July 2009
Davidson, J., A. Frankel, W. Ellison, S. Summerfelt, A. N. Popper, P. Mazik, and J. Bebak. 2007. Minimizing noise in fiberglass aquaculture tanks: noise reduction potential of various retrofits. Aquaculture Engineering 27:125-131. August 2007
Danley, M. L., P. B. Kenney, P. M. Mazik, R. Kiser and J. A. Hankins. 2005. Effects of carbon dioxide stress on intensively cultured rainbow trout, Oncorhynchus mykiss: physiological responses, growth, and fillet attributes. Journal of the World Aquaculture Society 36:249-261 September 2005
Clingerman, J., J. Bebak, P. Mazik, and S. T. Summerfelt. 2007. Use of avoidance response of rainbow trout to carbon dioxide for fish self-transfer between tanks. Aquaculture Engineering 37:234-251. August 2007
Braham, R.P., V.S. Blazer, C.H. Shaw, and P.M. Mazik. 2017 Micronuclei and Other Nuclear Abnormalities in Fishes from the Great Lakes Basin. Environmental and Molecular Mutagenesis, 58:570-581 doi: 10.1002/em.22123.. IP-084355 BAO approval 7/11/17. | Abstract July 2017
Blazer, V.S., P.M. Mazik, L.R. Iwanowicz, R.P. Braham, C.M. Hahn, H.L. Walsh, and A.J. Sperry. 2014. Assessment of the fish tumor beneficial use impairment in brown bullhead (Ameiurus nebulosus) at selected Great lakes Areas of Concern. U.S. Geological Survey Open-File Report 17p., http://dx.doi.org/10.3133/ofr20141105. IP-056691 BAO approval 5/21/14. June 2014
Blazer, V.S., P.M. Mazik, L.R. Iwanowicz, R. Braham, C. Hahn, H. Walsh and A. Sperry. 2014. Effects-based monitoring of wild fishes at sites in the Great Lakes Basin: Methods and Preliminary Results: U.S. Geological Survey Open-File Report 2014-1027 p. 44, http://dx.doi.org/10.3133/ofr/20141027 | Download March 2014
Blazer, V.S., H.L. Walsh, R.P. Braham, C.M. Hahn, P.M. Mazik, and P. McIntyre. 2016. Tumors in white sucker from Lake Michigan tributaries: pathology and prevalence. Journal of Fish Diseases. doi:10.1111/jfd.12520. August 2016
Blazer, V.S., H.L. Walsh, C.H. Shaw, L.R. Iwanowicz, R.P. Braham and P.M. Mazik. In Press. Indicators of exposure to estrogenic compounds at Great Lakes Areas of Concern: Species and site comparisons. Environmental Monitoring and Assessment https://doi.org/10.1007/s10661-018-6943-5 190, 577 IP-085856 BAO approval 8/9/18 October 2018
Blazer, V.S., H.L Walsh, R.P. Braham, and P.M. Mazik. 2019. Assessment of skin and liver neoplasms in white sucker (Catostomus commersonii) collected at the Sheboygan AOC, Wisconsin in 2017. U.S. Geological Survey Open-file Report. 2019-10-14, 18p.

April 2019
Blazer, V.S. L.R. Iwanowicz, H. Henderson, P.M. Mazik, J.A. Jenkins, D.A. Alvarez and J. A. Young. 2011. Reproductive endocrine disruption in smallmouth bass (Micropterus dolomieu) in the Potomac River basin: spatial and temporal comparisons of biological effects. Environmental Monitoring Assessment: 10.1007/s10661-011-2266-5. | Abstract August 2011
Behmke, S., P.Mazik and T. Katnzer. Submitted. Common samples used to diagnose lead poisioning are poor predictors of total body lead burden of birds. Journal of Wildlife Diseases. | Abstract March 2017
Annins, A.W., J.T. Petty, T.L. King, M. Schilz and P.M Mazik. 2015. Genetic differentiation and complex metapopulation structure of an Appalachian brook trout populations. Conservation Genetics 16:15-29. | Download January 2015
Braham, Ryan
PhD
ryan.braham@hotmail.com

Hahn, Cassidy
PhD
cassidy.hahn@gmail.com

Martinez, Carlos
Master's
Carlos_Martinez@fws.gov

Missildine, Brian
PhD
cohophysh@yahoo.com

Sparks, Daniel
PhD
Daniel_Sparks@fws.gov

Waldrop, Thomas
Master's
t.waldrop@freshwaterinstitute.org

Presentations Presentation Date
Walsh, H.L., V.S. Blazer, and P.M. Mazik. 2021. Identification of <i>Aphanomyces invadans</i> in smallmouth bass from the Cheat River. Annual West Virginia Chapter AFS Meeting. April 27, 2021. Virtual Meeting. April 2021
Smith, C.R., Ottinger, C.A, Walsh, H.L., Blazer, V.S., and Mazik, P.M. 2021. Immune status of smallmouth bass in West Virginia. Annual West Virginia Chapter AFS Meeting. April 27, 2021. Virtual Meeting. April 2021
Mazik, P.M. 2015. Ethical Responsibility in Aquaculture - Introduced Species and/or Exotics. World Aquaculture Society Annual Meeting, New Orleans, Louisiana, Fe February 2015
Hahn, C.M., L.R. Iwanowicz, V.S. Blazer, P.M. Mazik. 2013. Effects of Environmental Contaminants on Gene Expression Endpoints in Fishes of the Great Lakes. Annual meeting of the Southern Division of the American Fisheries Society, Nashville, TN, February 9-12, 2013. February 2013
Hahn, C.M., L.R. Iwanowicz, V.S. Blazer, P.M. Mazik. 2013. Biological Effects of Environmental Contaminants on Gene Expression Endpoints in Fishes of the Great Lakes. 56th Annual Conference on Great Lakes Research, West Lafayette, Indiana. June 3-6, 2013. June 2013
Hahn, C.M., L.R. Iwanowicz, R.S. Cornmna, P.M. Mazik and V.S. Blazer. 2016. Transcriptome discovery in non-model species for the development of quantitative gene expression assays: A case study of the Rochester Embayment Area of Concern. American Fisheries Society Southern Division Meeting. February 19 – 21, 2016. Wheeling, WV February 2016
Hahn, C.M., Iwanowicz, L.R., Blazer, V.S., Walsh, H.L., Braham, R.P., Mazik, P.M. 2015. Effects of Contaminants on Gene Expression Endpoints in Micropterus from Great Lakes Areas of Concern. International Association of Great Lakes Research. May 2015. Burlington, VT. May 2015
Hahn, C.M., Iwanowicz, L.R., Blazer, V.S., Walsh, H.L., Braham, R.P., Mazik, P.M. 2014. Biological Effects of Environmental Contaminants on Gene Expression Endpoints in Largemouth Bass (Micropterus salmoides) and Smallmouth Bass (Micropterus dolomieu) from Great Lakes Areas of Concern. International Symposium on Aquatic Animal Health. Portland, Oregon. August 31-September 4, 2014. September 2014
Hahn, C.M., Iwanowicz, L.R., Blazer, V.S., Cornman, R.S. 2014. The First Report of a Hepadnavirus Isolated from Fishes: Evidence of Hepatitis B Virus infection in White Sucker (Catostomus commersoni) from the Great Lakes Region. International Symposium on Aquatic Animal Health. Portland, Oregon. August 31-September 4, 2014. August 2014
Braham, Ryan P., Vicki S. Blazer, Jim D. Hedrick, and Patricia M. Mazik. Temporal Variations in Microcystin Toxins within the Potomac River Drainage. Southern Division of the American Fisheries Society Annual Meeting, Wheeling, West Virginia. February 17-21, 2016. February 2016
Braham, R.P., V.S. Blazer, H.L Walsh, C.M Hahn, and P.M Mazik. 2014. An Evaluation of Biological Markers as Indicators of Exposure to Genotoxic and Mutagenic Compounds in the Great Lakes Basin, United States. International Symposium on Aquatic Animal Health. Portland, Oregon. August 31-September 4, 2014 September 2014
Braham, R.P., P.M. Mazik, J. Hedrick, L. Iwanowicz, and V. Blazer. 2014. Investigations on algal (cyanobacterial) species and toxins and their associations with fish lesions, mortalities and estrogenic activity. International Symposium on Aquatic Animal Health. Portland, Oregon. August 31-September 4, 2014. September 2014
Braham, R., V.S. Blazer and P.M. Mazik. 2013. An evaluation of genotoxic and mutagenic contamination in the Great Lakes Basin: a case study. Annual meeting of the Southern Division of the American Fisheries Society, Nashville, TN February 9-12, 2013 February 2013
Braham, R., P. Mazik, J. Hedrick, L. Iwanowicz, and V. Blazer. 2015. Spatial and temporal variation among microcystin toxins and environmental estrogens within the Potomac River Drainage. USGS Priority Ecosystem Chesapeake Bay Annual Meeting. Shepherdstown, West Virginia. May 27-28, 2015. May 2015
Braham, R. P., V. S. Blazer, J. Hedrick, and P. M. Mazik. 2015. Spatial and temporal variations in microcystin toxins and environmental estrogens within the Potomac River Drainage. American Fisheries Society Fish Health Section Annual Meeting. Ithaca, New York. July 13-15, 2015. July 2015
Technical Publications Publication Date
Thorne, D.W., J.T. Petty, and P.M. Mazik. 2004. Effects of temperature and local productivity on diet, consumption rates and growth of trout in the upper Shavers Fork drainage. Final report to the US Fish and Wildlife Service. July 2004. July 2004
Strager, J.M., M. Shumar, P.B. Wood, M. Strager, and P.M. Mazik. 2010. Development of a habitat resortation and conservation prioritization tool for songbirds and mussels in the Appalachian Mountains. Final report to the U.S. Fish and Wildlife Service and U.S. Geological Service. January 2010. January 2010