Correlation of Environmental Temperature and Ice Content During Freezing in Pseudacris regilla
Document Type
Oral Presentation
Campus where you would like to present
SURC Ballroom A
Start Date
17-5-2012
End Date
17-5-2012
Abstract
The correlation of environmental temperature and ice content during freezing was studied in the pacific tree frog (Pseudacris regilla), a species that demonstrates freeze-tolerance, and overwinters on the forest floor under organic detritus. While freeze-tolerance has been studied and observed, but no data regarding the ice content of the frogs as they freeze has been published. This data is important, as it will supplement others research in the study of cryoprotectants, which in the future may allow for preservation of organs longer than 24 hrs. Frogs were cooled in a jacketed beaker from room temperature to below their freezing point, and then thawed. Temperature inside the vessel, and subcutaneous electrical resistance of the frog were measured. The electrical resistance was used to determine extracellular ice content.
Recommended Citation
Yeabsley, Jeff, "Correlation of Environmental Temperature and Ice Content During Freezing in Pseudacris regilla" (2012). Symposium Of University Research and Creative Expression (SOURCE). 133.
https://digitalcommons.cwu.edu/source/2012/posters/133
Poster Number
20
Additional Mentoring Department
Biological Sciences
Correlation of Environmental Temperature and Ice Content During Freezing in Pseudacris regilla
SURC Ballroom A
The correlation of environmental temperature and ice content during freezing was studied in the pacific tree frog (Pseudacris regilla), a species that demonstrates freeze-tolerance, and overwinters on the forest floor under organic detritus. While freeze-tolerance has been studied and observed, but no data regarding the ice content of the frogs as they freeze has been published. This data is important, as it will supplement others research in the study of cryoprotectants, which in the future may allow for preservation of organs longer than 24 hrs. Frogs were cooled in a jacketed beaker from room temperature to below their freezing point, and then thawed. Temperature inside the vessel, and subcutaneous electrical resistance of the frog were measured. The electrical resistance was used to determine extracellular ice content.
Faculty Mentor(s)
Jason Irwin