2016-2017 Science Planning Summaries
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2016-2017 USAP Field Season
Project Detail

Project Title

Ocean acidification seascape: linking natural variability and anthropogenic changes in pH and temperature to performance in calcifying Antarctic marine invertebrates


Ocean acidification seascape: linking natural variability and anthropogenic changes in pH and temperature to performance in calcifying Antarctic marine invertebrates

Summary

Event Number:
B-134-M

Program Manager:
Dr. Chris Fritsen

ASC POC/Implementer:
Samina Ouda / Beverly Walker


Principal Investigator

Dr. Gretchen Hofmann
hofmann@lifesci.ucsb.edu

University of California Santa Barbara
Department of Ecology, Evolution, Marine Biology
Santa Barbara, California

Project Web Site:
http://labs.eemb.ucsb.edu/hofmann/gretchen/


Location

Supporting Stations: McMurdo Station
Research Locations: New Harbor / McMurdo Jetty / Cape Evans


Description

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

  • Umihiko Hoshijima