Dr. Joseph E Morris

In addition to being the Director of the North Central Regional Aquaculture Center (NCRAC), my research addresses both aquaculture and fishery management issues.  I also serve as the Aquaculture and Fisheries Specialist for Iowa State University Outreach and Extension program.  

Research

My research focus on two general fisheries topics, aquaculture and pond management. The aquaculture research focuses on the fish species appropriate for the Midwest.  Fisheries research focuses on fisheries management, aquatic vegetation management, water quality issues as well as general aquatic ecology questions. A unique aspect of my integrated extension/outreach and research program is my role as Director of the North Central Regional Aquaculture Center (NCRAC) where I manage and lead various research and extension/outreach programming activities from this important federally supported entity. NCRAC's mission is to enhance aquaculture through education, research, and technology transfer to support a sustainable profitable industry.

Publications

Wamboldt, J.A., A. D. Wanamaker, M. C. Hannah, R. D. Schultz, and J. E. Morris. 2020. Trophic dynamics of a reservoir fishery following an introduction of a top predator: insights from stable carbon and nitrogen isotopes. Journal of Fisheries Management and Ecology 27:531-539. https://doi.org/10.1111/fme.12445

Wamboldt, J.A., A. D. Wanamaker, and J. E. Morris. 2015. Commercial diets in Phase I Palmetto Bass, Morone saxatilis× Morone chrysops, production in plastic‐lined ponds: fertilizer or feed? Journal of the World Aquaculture Society, 46: 490–504. doi: 10.1111/jwas.12211.

Hayward, R. S., R. D. Clayton, J. E. Morris, K. Masagounder, and M. Ali. 2013. Increasing growth and feed efficiency of Juvenile Walleye, Sander vitreus (Mitchill, 1818), through novel, subsatiation, restrict/feed cycles from late summer into fall: 1-7.

Stone, N., J. E. Morris, and B. Smith. 2012. Managing the pond management. Pages 113-152 In W. Neal and D. Willis (editors). Management of Small Impoundments in North America. American Fisheries Society, Bethesda, Maryland.

Lovell, G., J. E. Morris, and R. D. Clayton. 2012. Dealing with fish kills. Pages 251-273 In W. Neal and D. Willis (editors). Management of Small Impoundments in North America. American Fisheries Society Bethesda, Maryland.

Kaatz, S.E., J.E. Morris, J.B. Rudacille, J.A. Johnson, and R.D. Clayton. 2011. Role of organic fertilizers in walleye (Sander vitreus) production in plastic-lined culture ponds. Aquaculture Research 42:490-498.

Mulligan, B., J.E. Morris, and R.D. Clayton. 2010. Chironomid abundance and consumption by juvenile channel catfish in plastic-lined and earthen culture ponds. Aquaculture Research 41:e234-e238.

Kaatz, S., J.E. Morris, J.B. Rudacille, and R.D. Clayton. 2010. Origin of chironomid larvae in plastic-lined culture ponds: airborne or water supply? North American Journal of Aquaculture 72:107-110.

Clayton, R.D. and J.E. Morris. 2009 Habituation performance for two percids to formulated feed under turbid and clear water culture. Journal of Applied Aquaculture 21:151-159.

Bozwell, J.L., R.D. Clayton, and J.E. Morris. 2009. Use of hydrogen peroxide to improve golden shiner egg hatchability. North American Journal of Aquaculture 71:238-241.

Rosauer, D.R., J.E. Morris, and R.D. Clayton. 2009. Role of compensatory growth in walleye fingerling production. North American Journal of Aquaculture 71:35-38.

Clayton, R.D., J.E. Morris, and R.C. Summerfelt. 2009. Turbidity duration on walleye larvae culture. North American Journal of Aquaculture 71:174-177.

Fowler, A. L. and J. E. Morris. 2008. A new stomach sample collection device for fish gastric lavage samples. North American Journal of Fisheries Management 28:1775-1778.

Kaatz, S. E. and J. E. Morris. 2007. Effects of formulated feed on water quality in fingerling walleye production ponds. Scientifical Papers – Animal Sciences and Biotechnologies 40:29-36.

Morris, J. E. and R. D. Clayton. 2007. A benthic sampler for plastic-lined ponds. Journal of the World Aquaculture Society 38:318-321.

Rogge, M. L., A. A. Moore and J. E. Morris. 2003. Organic and mixed organic-inorganic fertilization of plastic-lined ponds for fingerling walleye culture. North American Journal of Aquaculture 65: 179-190..