Measurements for a 92 day climate manipulation experiment on replicate macrofaunal mesocosms collected on the cruise JR18006 in the Western Barents Sea and at Rothera research station in 2019 ...

• Main Authors: Williams, Thomas J., Reed, Adam J., Peck, Lloyd S., Godbold, Jasmin A., Solan, Martin
• Format: Dataset
• Language: English
• Published: NERC EDS UK Polar Data Centre 2023
• Subjects: "EARTH SCIENCE","BIOLOGICAL CLASSIFICATION","ANIMALS/INVERTEBRATES","MOLLUSKS"; "EARTH SCIENCE","BIOLOGICAL CLASSIFICATION","ANIMALS/INVERTEBRATES","ECHINODERMS"; "EARTH SCIENCE","BIOLOGICAL CLASSIFICATION","ANIMALS/INVERTEBRATES","SEGMENTED WORMS ANNELIDS"; "EARTH SCIENCE","OCEANS","OCEAN CHEMISTRY","CARBON DIOXIDE"; "EARTH SCIENCE","OCEANS","OCEAN TEMPERATURE"; Antarctic; Arctic; bioirrigation; bioturbation; climate change; ecosystem function; experiment; mesocosm experiment; Adelaide Island; Antarc*; Antarctic Peninsula; Arctic Ocean; Barents Sea; Climate change; Sea ice
• Online Access: https://dx.doi.org/10.5285/7adc7b14-abae-4ab9-b60b-b9b6e0e9f320; https://data.bas.ac.uk/full-record.php?id=GB/NERC/BAS/PDC/01749

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 ... : Individuals of Astarte crenata, Ctenodiscus crispatus and Cistenides hyperborea were obtained from replicate SMBA (Scottish Marine Biological Association) box cores and 15 minute Agassiz trawls in the Barents Sea (stations B13, 74.3 degrees N, 30.0 degrees E; B16, 80.3 degrees N, 30.0 degrees E; JCR18006, RSS James Clark Ross) in July 2019. Individuals of the Aequiyoldia eightsi and Laternula elliptica were collected by SCUBA-assisted divers at Rothera Point, Adelaide Island, West Antarctic Peninsula (67.3 degrees S, 68.1 degrees W) in March-April 2019. Surficial sediment (less than 5 cm depth) for the Arctic species was collected using SMBA box cores at stations B13, B14 (76.3 degrees N, 30.3 degrees E) and B16 in July 2019 and, for the Antarctic species, by hand from the Hamble, UK (50.9 degrees N, 1.3 degrees W). Sediment was sieved (500 micrometer mesh) within a seawater bath to retain the fine fraction and remove macrofauna and debris. Species were distributed across 42 clear acrylic aquaria (internal ...