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Andrew McElwain

Visiting Assistant Professor


Ph.D., Fisheries and Allied Aquacultures, 2012, Auburn University
MS, Biology, 2007, Middle Tennessee State University
BS, Biology (Chemistry minor), 2003, Westfield State College


I use light microscopy and scanning electron microscopy to study tissue structure of fishes and freshwater mussels to better understand how cells, tissues and organs function. I am especially interested in histopathology of parasitic infections.

Specialty areas:

  • histology
  • parasitology


  • McElwain, A., and S. A. Bullard. 2014. Histological atlas of freshwater mussels (Bivalvia, Unionidae): Villosa nebulosa (Ambleminae: Lampsilini), Fusconaia cerina (Ambleminae: Pleurobemini), and Strophitus connasaugaensis Unioninae: Anodontini). Malacologia 57: In Press.
  • McElwain, A., C. Ray, B. Su, M. Shang, M. C. Fobes, P. Duncan, R. Thresher, R. A. Dunham, and S. A. Bullard. 2013. Osteological and histological details of unilateral microphthalmia and anophthalmia in juvenile common carp (Cyprinus carpio). Aquaculture 400-401: 135-141.
  • Bullard, S. A., C. F. Ruiz, A. McElwain, M. J. Murray, J. D. Borucinska, and G. W. Benz. 2012. Huffmanela cf. carcharhini (Nematoda, Trichosomoididae, Huffmanelinae) from skin of a sandbar shark, Carcharhinus plumbeus, in the Pacific Ocean. Journal of Parasitology 98: 333-340.
  • Olivares-Fuster, O., S. A. Bullard, A. McElwain, M. J. Llosa, and C. R. Arias. 2011. Kinetics of Flavobacterium columnare adhesion to channel catfish (Ictalurus punctatus) and zebra danio (Danio rerio) tissues after immersion challenge. Diseases of Aquatic Organisms 96: 211-227.
  • Bullard, S. A., A. McElwain, and C. R. Arias. 2011. Scanning electron microscopy of "saddleback" lesions associated with experimental infections of Flavobacterium columnare in channel catfish, Ictalurus punctatus, (Siluriformes: Ictaluridae) and zebrafish, Danio rerio, (Cypriniformes: Cyprinidae). Journal of the World Aquaculture Society 42: 906-913.
  • McElwain, A., J. W. Kohl, J. Bojkovic, and G. W. Benz. 2010. Distribution of Kroeyerina elongata (Kroyeriidae, Siphonostomatoida, Copepoda) in the olfactory sacs of the blue shark, Prionace glauca. Journal of Parasitology 96: 887-896.
  • McElwain, A., O. Olivares-Fuster, C. R. Arias, and S. A. Bullard. 2009. Preliminary observations of pathological changes to skin and gill of channel catfish (Ictalurus punctatus) and zebra danio (Danio rerio) exposed to Flavobacterium columnare. Proceedings of the 2nd International Flavobacterium Workshop. Paris, France (editor
  • reviewed).
  • Ulicny, K. J., D. R. Stewart, A. McElwain, E. R. Salmon, S. A. Bullard, J. O. Cook, G. B. Skomal, H. L. Pratt, Jr., and G. W. Benz. 2007. Sealing Whirl-Pak®-type bags containing wet samples. Journal of the Tennessee Academy of Sciences 82: 88-89.
  • Benz, G. W., K. Nagasawa, A. Yamaguchi, B. C. McMeans, A. McElwain. 2006. New host and ocean records for Driocephalus cerebrinoxius (Sphyriidae, Siphonostomatoida) and a reconsideration of phylogeny within Sphyriidae. Acta Ichthyologica et Piscatoria 36: 1-9.