• Juliet M. Wong, Terence Leach, Logan Kozal, Umihiko Hoshijima, and Gretchen E. Hofmann. Transgenerational effects in an ecological context: Conditioning of adult sea urchins to upwelling conditions alters the progeny’s response to differential p CO2 levels. doi: 10.1016/j.jembe.2019.04.006

  • Umihiko Hoshijima and Gretchen E. Hofmann. Variability of seawater chemistry in a kelp forest environment is linked to in situ transgenerational effects in the purple sea urchin, Strongylocentrotus purpuratus. Frontiers in Marine Science doi: 10.3389/fmars.2019.00062
Fieldwork in Antarctica.


  • Kevin M. Johnson, Juliet M. Wong, Umihiko Hoshijima, Cailan S. Sugano, and Gretchen E. Hofmann. Seasonal transcriptomes of the Antarctic pteropod, Limacina helicina antarctica. Marine Environmental Research. doi:10.1016/j.marenvres.2018.10.006
Deploying pH sensors under sea ice in McMurdo Sound, Antarctica.


  • Umihiko Hoshijima, Juliet M. Wong, and Gretchen E. Hofmann. Additive effects of pCO2 and temperature on respiration rates of the Antarctic pteropod Limacina helicina antarctica. Conservation physiology. doi:10.1093/conphys/cox064
Running a scientific programming workshop at UC Santa Barbara


  • Kevin M. Johnson, Umihiko Hoshijima, Cailan S. Sugano, Alice T. Nguyen, and Gretchen E. Hofmann. Shell dissolution observed in Limacina helicina antarctica from the Ross Sea, Antarctica: paired shell characteristics and in situ seawater chemistry. Biogeosciences Discussions. doi:10.5194/bg-2016-467

  • Brent B. Hughes, Kamille K. Hammerstrom, Nora E. Grant, Umihiko Hoshijima, Ron Eby, Kerstin Wasson. Trophic cascades on the edge: fostering seagrass resilience via a novel pathway. Oecologia. doi:10.1007/s00442-016-3652-z

  • Emily B. Rivest, Margaret O’Brien, Lydia Kapsenberg, Chris C. Gotschalk, Carol A. Blanchette, Umihiko Hoshijima, and Gretchen E. Hofmann. Beyond the Benchtop and the benthos: dataset managment planning and design for time series of ocean carbonate chemistry associated with Durafet(R)-based pH sensors. Ecological Informatics. doi:10.1016/j.ecoinf.2016.08.005
Summer Research at Shannon Point Marine Center, Western Washington University in 2012.

In Prep/Review:

  • Hoshijima, U. and Hofmann, G.E. A time series of year-round pH from the Ross Sea, Antarctica: inter and intra-annual trends. (In preparation).

  • Hoshijima, U., Dilly, G.F., Rivest, E.B., L. Kapsenberg, Nguyen, A.T., Johnson, K.M., and Hofmann, G.E. Exploring local adaptation to ocean acidification in Mytilus californianus during simulated upwelling events in Acidification Respirometry Chambers (ARCs). (in preparation).

  • Hofmann, G.E., K.M. Johnson, Hoshijima, U, Wong, J.M., and Sugano, C. On thin ice? Pteropods as sentinel organisms and the utility of transcriptomics. (in preparation)