Acclimation and acclimatisation of marine ectotherms collected at Rothera Research Station and Scott Base in Antarctica between 2004 and 2015 ...

• Main Authors: Morley, Simon A, Bates, Amanda E, Clark, Melody S, Fitzcharles, Elaine, Smith, Rebecca, Stainthorp, Rose E, Peck, Lloyd S
• Format: Dataset
• Language: English
• Published: NERC EDS UK Polar Data Centre 2024
• Subjects: "EARTH SCIENCE","HUMAN DIMENSIONS","GLOBAL CHANGE RESPONSES","CLIMATE ADAPTATION"; "EARTH SCIENCE","BIOLOGICAL CLASSIFICATION","ANIMALS/INVERTEBRATES"; "EARTH SCIENCE","OCEANS","MARINE ENVIRONMENT MONITORING"; Antarctic; Southern Ocean; acclimation; acclimatisation; climate change; physiology; resilience; warming; Adelaide Island; Antarc*; Antarctica; British Antarctic Survey
• Online Access: https://dx.doi.org/10.5285/60b777b4-0bd6-48c3-a301-c700854fbfa1; https://data.bas.ac.uk/full-record.php?id=GB/NERC/BAS/PDC/01825

This data assesses the ability of 8 species, from 7 classes representing a range of functional groups, to survive, for 100 to 303 days, at temperatures 0 to 4 degrees Celsius above previously calculated long-term temperature limits. Survivors were then tested for acclimation responses to acute warming. Acclimatisation in the field was tested in the seastar Odontaster validus collected in different years, seasons and locations within Antarctica. Finally, we tested the importance of oxygen limitation in controlling survival duration by incubating 7 species under normoxia (20%) and mild hyperoxia (30%). This study was funded by Natural Environment Research Council core funding to the British Antarctic Survey and Spitfire DTP funding to R.E.S. ... : Experiments were conducted between 2006 and 2015 with individuals hand collected by SCUBA divers in the austral summer, from 6 - 15m depth, near Rothera Research Station, Adelaide Island (67° 34' 2'' S, 68° 08' 0'' W). Common marine ectotherms were selected from different phyla to represent a range of functional groups, for which aquarium husbandry is well established and long term temperature limits have been estimated under normoxia. All animals remained submerged throughout the transfer from the sea to the flow-through aquarium system at the station. To control for size-dependent effects on survival we selected individuals of a similar size within each species group at the start of the experiment, and only studied fully reproductive adults. The 3.0 °C temperature-oxygen experiment was conducted in flow through aquaria at Rothera Research Station. In Rothera the tanks had a constant exchange of seawater that was balanced to allow temperature and oxygen treatments to be maintained while preventing any ...