This dataset presents temperature readings collected from the waters around South Georgia in the years 2019, 2021, 2023, and 2024. From 2021 onwards, depth readings are also presented. The data were obtained using temperature loggers affixed to longlines operating in the South Georgia Patagonian toothfish fishery. These in situ measurements were conducted to monitor the water temperatures around South Georgia. The deployment of the temperature loggers was carried out by fishing vessel crew and fisheries observers working on behalf of the Government of South Georgia and the South Sandwich Islands (GSGSSI). The data were collated by the Centre for Environment Fisheries and Aquaculture Science (Cefas). The collection and analysis of this data series was part-funded by the UK Government Blue Belt Programme in partnership with the Government of South Georgia and the South Sandwich Islands. The procurement of some of the temperature loggers was funded by Argos Froyanes Limited.

This record comprises six datasets related to the South Georgia and the South Sandwich Islands (SGSSI) Marine Protected Area (MPA) review undertaken in 2025. The SGSSI MPA is one of the world's largest MPAs, and in April 2025 the area of the MPA in which fishing is prohibited was greatly expanded following the second five-year MPA review in 2024. Details of the new measures can be found within the latest legislation (SGSSI Gazette No 2 dated 22 April 2025: https://laws.gov.gs/gazettes/), and the datasets here relate directly to the areas and boundaries referred to in these measures. These datasets are: -The boundary of the SGSSI MPA -No Take Zones -General Benthic Closed Areas -Research Benthic Closed Areas -Pelagic Closed Areas -General Fisheries Zones The datasets are available as shapefiles. This work has been funded directly by the Government of South Georgia and the South Sandwich Islands with additional financial support from the UK Government Blue Belt programme.