2022-2023 USAP Field Season
Genetic underpinnings of microbial interactions in chemically stratified Antarctic lakes
Dr. Brandon R Briggs
Supporting Stations: McMurdo Station
Microbial interactions are recognized as providing critical functions in all ecosystems. Despite their importance in ecosystem function, microbes are still generally overlooked in food web models and biogeochemical cycles. This project will focus on microbial ecology, activity, and roles in ecosystem function in Antarctic Lake ecosystems. The team will characterize the genetic underpinnings of microbial interactions and the influence of physicochemical gradients (e.g., light, nutrients, oxygen, sulfur) and seasons (e.g., summer vs. winter) on microbial networks in Lake Fryxell and Lake Bonney in the Taylor Valley within the McMurdo Dry Valleys region.
Field Season Overview
This event will focus on microbial ecology and biodiversity in the water columns of Lakes Fryxell and Bonney. Seven participants will deploy and will stay at fixed camps at Lakes Fryxell and Bonney. They will access field sites on foot or all terrain vehicles. Field activities will include drilling lateral transects in lake ice, sampling the water column, and incubating lake water at the field camp laboratories. The team will also use lab space in Crary Laboratory for preparing for the field and some sample processing after the field season is completed.
Deploying Team Members