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College of Natural & Applied Sciences
Science Bldg. Rm. 118

Degrees Earned: 
B.S. Biology (Minor: Psychology), Case Western Reserve University
M.S. Zoology, University of Hawaii at Manoa
Ph.D. Zoology, University of Hawaii at Manoa





Associate Professor (Biology), CNAS
Editor, Micronesica


Areas of Interest: 

I am a comparative biologist, with a background in behavioral ecology and invertebrate zoology. My research has focused upon the evolution of sexual patterns in shrimp, and other interesting phenomena in crustaceans. I employ a multifaceted approach to address my research questions, including analyses of behavior, morphology, taxonomy and molecular systematics. My strong interest in photography has also given me a creative outlet I can apply to my scientific endeavors. Since joining the UOG faculty in 2012, I’ve begun research on Guam’s native, threatened tree snails to support efforts to conserve these species.

Select Publications: 

  Onaga, H., Fiedler, G.C., Baeza, A. (2012). Protandric simultaneous hermaphroditism in Parhippolyte misticia (Clark, 1989) (Caridea: Hippolytidae): Implications for the evolution of mixed sexual systems in shrimp. Journal of Crustacean Biology, In Press.

  Fiedler, G.C., Rhyne, A., Segawa R., Aotsuka, T., and Schizas, N. (2010). The evolution of euhermaphroditism in caridean shrimps: a molecular perspective of sexual systems and systematics, BMC Evolutionary Biology, 10: 297.

  Okuno, J. and Fiedler, G.C. (2010). Lysmata lipkei, a new species of peppermint shrimp (Decapoda, Hippolytidae) from the warm temperate and subtropical waters of Japan In: C. H. J. M. Fransen, S. De Grave and P. K. L. Ng (eds.), Studies on Malacostraca: Lipke Bijdeley Holthuis Memorial Volume, Crustaceana Monograph, 14: 597-610.

  Hermansen, T.D., Arvedlund, M., & Fiedler, G.C. (2005). Calcium antagonists inhibit the discharge of cnidae in response to electrical stimulation in the giant tropical sea anemone Heteractis crispa Ehrenberger (Anthozoa), Marine and Freshwater Behaviour and Physiology, 38: 269-274.

  Fiedler, G.C. (2002). The Influence of social environment on Sex Determination in Harlequin Shrimp (Hymenocera picta: Decapoda, Gnathophyllidae), Journal of Crustacean Biology, 22: 750-761.

  Karplus, I., Fiedler, G.C., and Ramcharan, P. (1998). The intraspecific fighting behaviour of the Hawai`ian boxer crab, Lybia edmondsoni - Fighting with Dangerous Weapons?, Symbiosis, 24: 287-302.

  Fiedler, G.C. (1998). Functional, simultaneous hermaphroditism in female-phase Lysmata amboinensis, Pacific Science, 52: 161-169.