Measurements were collected during the 92 day lab-based experiment carried out on replicate macrofaunal mesocosms of Astarte crenata, Ctenodiscus crispatus, Cistenides hyperborea from the Western Barents Sea and Aequiyoldia eightsi and Laternula elliptica from Rothera Point, Antarctic Peninsula. Macrofauna were collected on cruise JR18006 in the Western Barents Sea and by hand during scuba dives in the cove adjacent to Rothera research station. Experimental measurements include carbonate chemistry indices measured in water samples; carbon dioxide concentration levels; benthic invertebrate response rate, burial rate, sediment particle reworking, bioirrigation, and associated nutrient concentrations; benthic invertebrate body size and individual biomass; sediment organic material content, and sediment particle size. Supported by the INSPIRE Doctoral Training Partnership programme (grant NE/S007210/1) and ''The Changing Arctic Ocean Seafloor (ChAOS) - how changing sea ice conditions impact biological communities, biogeochemical processes and ecosystems'' project (NE/N015894/1 and NE/P006426/1, 2017/2021), Natural Environment Research Council (NERC) in the UK.

A Deep sediment trap (3700m) mooring has been deployed in the Southern Ocean, north-west of South Georgia during multiple marine cruises from November 2006 onwards as part of a long-term monitoring and assessment of the status of the marine ecosystems in the region of South Georgia. Measurements were made for sustained observations of zooplankton densities, carbon export and effects of ocean acidification. Standard datasets include profiles from a Conductivity-Temperature-Depth (CTD) analyser and Acoustic Doppler Current Profiler (ADCP). In addition, data from a deep and shallow sediment trap, current meter, O2 sensor, CO2 sensor and pH sensors were collected. Funding was provided by the Scotia Sea open-ocean observatory (SCOOBIES) project. Data Access is provided via the RELATED DATA SET METADATA links.

Datasets from a deep sediment trap (3200m) mooring deployed in the Southern Ocean, south-west of South Georgia in November 2014 during the marine cruise JR304 and recovered in November 2015 by the marine cruise JR15002.

A Deep sediment trap (3200m) mooring has been deployed in the Southern Ocean, south-west of South Georgia during multiple marine cruises from April 2007 onwards as part of a long-term monitoring and assessment of the status of the marine ecosystems in the region of South Georgia. Measurements were made for sustained observations of zooplankton densities, carbon export and effects of ocean acidification. Standard datasets include profiles from a Conductivity-Temperature-Depth (CTD) analyser and Acoustic Doppler Current Profiler (ADCP). In addition, data from a deep and shallow sediment trap, current meter, O2 sensor, CO2 sensor and pH sensors were collected. Funding was provided by the Scotia Sea open-ocean observatory (SCOOBIES) project. Data Access is provided via the RELATED DATA SET METADATA links.