Environmental Physiology of Fish
University of Massachusetts, Amherst, MA, USA
Conte Anadromous Fish Research Center, Turners Falls, MA, USA

![]() Left to right: Lian Guo, Dan Hall, Andre Baraney, Ciaran Shaughnessy, Steve McCormick, Jessica Norstog, Shotaro Irachi, and Diogo Ferreira Martins Photo Credit: Victoria McCormick | ![]() PI Stephen McCormick holding an Atlantic sturgeon Photo by Stacia Sower | ![]() Changes in circulating hormones during smolt development |
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![]() Lian Guo holds an adult blueback herring during an electrofishing trip in Wethersfield Cove, CT. Credit: Jadziah Moonstone | ![]() Image of ionocytes in skin of larval tilapia Credit: Junya Hiroi | ![]() Ciaran Shaughnessy (left) and Jessica Norstog (right) electrofishing for metamorphic sea lamprey Photo by Shotaro Irachi |
![]() Larval blueback herring change rapidly in morphology as they develop (e.g. pigment spots), but those big shiny eyes always stay the same! Credit: Lian Guo | ![]() Setting up a cage study in a stream weir at Hubbard Brook, NH. Photo by Scott Bailey | ![]() Experimental tanks used to test the effects of temperature on juvenile river herring physiology. Credit: Lian Guo |
![]() Changes in Na+,K+-ATPase isoforms during smolt development and seawater exposure. Adapted from: McCormick et al. 2013 | ![]() Diogo uses a microscope to dissect brain regions, Ciaran dissects intestines and kidneys in the middle, and Jessica dissects gill tissues for this lamprey study. Photo Credit: Shotaro Irachi | ![]() The PI Dr. Stephen D. McCormick doing some bench work Photo by Diogo Ferreira-Martins |
![]() Metamorphic juvenile sea lamprey and their ionocytes (stained red with an antibody for Na+,K+-ATPase) that are responsible for the development of seawater tolerance. Photo by Jonathan Wilson (Journal of Experimental Biology 211: 978-988) | ![]() Lamprey metamorphic field sampling, 2017. Photo by Jessica Norstog | ![]() From left to right: Shotaro Irachi, Ciaran Shaughnessy, Diogo Ferreira Martins, Jessica Norstog on a social event during the 13th International Congress on the Biology of Fish (ICBF 2018), Calgary, Alberta, Canada. Photo by Stephen McCormick |
![]() Increase in the size and number of ionocytes (stained red with an antibody for Na+,K+-ATPase) during the parr-smolt transformation of Atlantic salmon. Photo by Ryan Pelis (American Journal of Physiology 280: R1844-R1852) | ![]() Immunohistochemistry staining for ion transporters on a seawater-acclimated salmon gill. | ![]() Sea lamprey postmetamorphic juvenile Photo by Jessica Norstog |
![]() Shotaro Irachi (left) presenting his work on the effects of deionized water on Atlantic salmon parr to Junya Hiroi (right) at the 13th International Conference on Fish Biology, Calgary, Alberta. Photo by Jessica Norstog | ![]() Field sampling of postmetamorphic sea lamprey using a fyke net in Connecticut River tributary in November 2016. Photo by Jessica Norstog | ![]() Changes in Na+,K+-ATPase isoforms during smolt development and seawater exposure. Adapted from: McCormick et al. 2013 |
![]() Getting ready for some messy sampling in the lab. From left to right: Stephen McCormick, Darren Lerner, Katherine Nieves-Puigdoller Photo by Amy Regish | ![]() Electrofishing juvenile salmon on Salmon Brook, CT. Photo by Michael O'Dea | ![]() Catch and release project on the Alagnak River with Julie Meka. Photo by Brad Baker |
![]() Sampling migrating smolts in the Dennys River, ME. Photo by Stephen McCormick | ![]() In-stream sampling in Smith Brook, VT. Photo by Stephen McCormick | ![]() Sampling juvenile alewives at night in Brides Pond, CT. Photo by Stephen McCormick |
![]() USGS Conte Lab Physiology team 2014 | ![]() Dr. John Kelly collects water samples to measure inorganic aluminum levels in the Swift River, NH. Photo by Michael O'Dea |