Bradley M. Richardson
Bradley M. Richardson

Research Fish Biologist

About Me

I am a Research Fish Biologist with the USDA-ARS Warmwater Aquaculture Research Unit. My research primarily centers on the ecology of snails and other macroinvertebrates in catfish aquaculture ponds and how this subsequently impacts catfish production. My research interests cover a wide breadth of aquatic ecology including macroinvertebrate and fish community structures, species interactions, predator-prey interactions, as well as general ecology and life histories. I also have a strong interest in educational research, particularly in how note-taking effects information retention in the classroom.

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Interests
  • Aquatic Ecology
  • Species Interactions
  • Aquatic Macroinvertebrates
  • Freshwater Fishes
Education
  • PhD Forest Resources (Wildlife, Fisheries, and Aquaculture) (Secondary Education Minor)

    Mississippi State University

  • MSc Biology

    Murray State University

  • BSc Fisheries/Aquatic Biology (Chemistry Minor)

    Murray State University

📚 My Research

I’m a research biologist at the Warmwater Aquaculture Research Unit of the USDA Agricultural Research Service. I use a combination of laboratory- and field-based studies to improve the United States catfish aquaculture industry.

My primary research focuses on the monitoring and management of aquatic snails, which play host to numerous parasites detrimental to catfish production. Recent work has also expanded my focus to include snails detrimentally impacting the rice and crayfish industries of the United States, as well.

Featured Publications
Recent Publications
(2026). Impact of dietary protein, dissolved oxygen concentration, stocking density, and body mass on channel catfish (Ictalurus punctatus) production performance. Journal of the World Aquaculture Society 57(3).
(2026). Effects of temperature on the Marsh Ram's Horn (Planorbella trivolvis) and Ghost Ram's Horn snail (Biomphalaria havanensis). North American Journal of Aquaculture, 88(3).
(2026). Channel catfish and hybrid catfish fry have different zooplankton feeding habits. North American Journal of Aquaculture, 88(3).
(2025). First report of a trematode infection in an invasive population of *Pomacea maculata*: Evidence of a phaneropsolid (Trematoda: Microphalloidea) and recommended methods for surveillance. Parasitology International, 112.
(2025). Harvesting zooplankton with submersible pumps does not affect water quality, stabilizes phytoplankton and zooplankton populations, and provides a supplemental food source for fry. NAJA, 88(1).