2022-2023 USAP Field Season
US Antarctic Marine Living Resources Program (AMLR)
Dr. George Watters
Supporting Stations: ARSV Laurence M. Gould
The National Oceanic and Atmospheric Administration (NOAA) Fisheries' Antarctic Marine Living Resources (AMLR) program collects data and provides scientific information to better inform decision making by the Commission for the Conservation of Antarctic Living Marine Resources. For the past 25 austral summers, the AMLR field program has been conducted in the vicinity of Elephant Island, the South Shetland Islands, and the Antarctic Peninsula. The Antarctic Ecosystem Research Division (AERD, Southwest Fisheries Science Center) will deploy an array of upward-looking acoustic moorings and a fleet of autonomous gliders, equipped with acoustic sensors to collect data on biomass distribution and transport of krill. The objectives of this work are: 1) to quantify and understand interactions between krill, krill predators (e.g., penguins and seals), and the Antarctic krill fishery; 2) to estimate krill flux through and standing biomass in areas where krill, predators, and the fishery overlap in space and time. The deployment of moorings and gliders off Cape Shirreff, Livingston Island continues a time series established in 2018, while the moorings and gliders deployed in Bransfield and Gerlache Straits will provide data on biomass of krill in the Bransfield Strait.
Field Season Overview
The NOAA AMLR group will deploy four subsurface moorings and four Slocum gliders in December 2022 around the Livingston Island area. The four gliders will be recovered by the Palmer LTER program during their annual cruise as part of a collaboration. In addition to recovering the four gliders, LTER will deploy four additional NOAA subsurface moorings. All moorings will collect data until the following austral summer when they will be recovered.
Deploying Team Members