2020-2021 Science Planning Summaries
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2020-2021 USAP Field Season
Project Detail

Project Title

Palmer, Antarctica Long-Term Ecological Research (LTER): land-shelf-ocean connectivity, and ecosystem resilience and transformation, in a sea-ice influenced pelagic ecosystem

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C-020-L Research Location(s): ARSV Laurence M Gould


Event Number:
NSF/OPP Award 2026045

Program Manager:
Dr. Francisco (Paco) Moore

ASC POC/Implementer:
Samina Ouda / Jamee Johnson / Bruce Felix

Principal Investigator(s)

Dr. Deborah Steinberg
Virginia Institute of Marine Sciences
Department of Biological Sciences
Gloucester Point, Virginia

Project Web Site:


Supporting Stations: ARSV Laurence M. Gould
Research Locations: ARSV Laurence M Gould


Palmer Long-Term Ecological Research (PAL-LTER) started in 1990 to address the hypothesis that the annual sea-ice cycle may be the major determinant of spatial/temporal changes in the structure and function of Antarctic marine communities. Research now includes bacteria, viruses, phytoplankton, krill, macrozooplankton, penguins, seabirds, and marine mammals. The PAL-LTER model traces the effects of changing climate and the extent, duration, and seasonality of sea ice on ecosystem composition and dynamics in the West Antarctic Peninsula, where satellite observations over the past 35 years indicate the average duration of sea ice cover is now about 90 days shorter. Six collaborative projects on the ARSV Laurence M. Gould and at Palmer Station will use moorings, numerical modeling, oceanographic cruises, and environmental sampling to address core hypotheses.

Field Season Overview

Due to the cancellation of the annual LTER cruise, no members of the zooplankton team (C-020) will deploy this season.

Deploying Team Members

  • John Conroy
  • John Conroy
  • John Conroy