2016-2017 USAP Field Season
Ocean acidification seascape: linking natural variability and anthropogenic changes in pH and temperature to performance in calcifying Antarctic marine invertebrates
Dr. Gretchen Hofmann
University of California Santa Barbara
Project Web Site:
Supporting Stations: McMurdo Station
This project will examine the effects of environmental change on a key Antarctic marine invertebrate — a pelagic mollusk, the pteropod, Limacina helicina antarctica. There are two main activities in this project: (1) To deploy oceanographic equipment — in this case, autonomously recording pH sensors called SeaFETs (sea field-effect transistors) and other devices that record temperature and salinity; and (2) To use these environmental data in the laboratory at McMurdo Station to study the response of the marine invertebrates to future changes in water quality that are expected in the next few decades. The researcher's objective this year is an early-season retrieval of three SeaFET sensors from Cape Evans, the Jetty, and New Harbor.
Field Season Overview
Early in the season, ASC Dive Services personnel and one science team member will retrieve three SeaFET sensors from Cape Evans, the Jetty, and New Harbor. Once retrieved at each location, the science team member will dry the sensors, service the instrument, download data, and prepare it to be shipped to the PI’s home institution.
Deploying Team Members