1. 2018 5M Publishing Ltd Sheffield UK T. Jonassen M. Remen A. Lekva A. Steinarsson T. Árnason J. W. Treasurer Transport of lumpfish and wrasse 319 335
2. Building a fish anesthesia delivery system;Lewbart G. A.;Exotic DVM,1999
3. Lloyd R.(2013).Sex Determination of Red‐bellied Piranha (Pygocentrus nattereri) Using Endoscopy and Gonadal Biopsy. Poster presentation at National Aquarium Conference Bristol Zoo & Gardens UK.
4. Endoscopy in Sharks