Physiological parameters from a long-term multiple stressor aquarium experiment with the cold-water coral Desmophyllum pertusum

• Main Authors: Beck, Kristina K, Hennige, Sebastian, Easton, Blair, Burns, Zoe, Kaye, Sarah, Peña Fernández, Marta, Barnhill, Kelsey Archer, Wolfram, Uwe, Roberts, J Murray
• Format: Dataset
• Language: English
• Published: PANGAEA 2024
• Subjects: Buoyant weighing technique according to Jokiel et al. (1978); Calculated; cold-water coral; Desmophyllum_pertusum_Sampling_Area_and_Period; Desmophyllum pertusum; dry mass; growth rate; respiration rate; oxygen; per polyp; Duration; experiment; Fibre optic oxygen and temperature probes (OXY-4 SMA; POF; PSt3; Pt100; PreSens); growth rates; Health status; iAtlantic; Integrated Assessment of Atlantic Marine Ecosystems in Space and Time; Multiple-stressor; Remote operated vehicle; Respiration; ROV; Specimen identification; Tank number; Tisler Reef; Skagerrak; Treatment; Lophelia pertusa; Ocean acidification
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.965082; https://doi.org/10.1594/PANGAEA.965082

We conducted a long-term (6 months) multiple stressor aquarium experiment with the cold-water coral Desmophyllum pertusum (syn. Lophelia pertusa) under future environmental conditions. The experiment with live corals consisted of four different treatments to investigate the combined effect of ocean acidification, warming, deoxygenation and food limitation on their physiology: 1) control (9 °C, pH 8.1, 100 % oxygen, 100 % food availability), 2) multiple stressor with high feeding (12 °C, pH 7.7, 90 % oxygen, 100 % food availability), 3) multiple stressor with low feeding (12 °C, pH 7.7, 90 % oxygen, 50 % food availability) and 4) reduced oxygen (9 °C, pH 8.1, 90 % oxygen, 100 % food availability). Every treatment consisted of three replicate tanks with four live corals (treatments 1-4). The physiological parameters were determined after 1.5, 3, 4.5 and 6 months of the experiment. Growth rates were measured using the buoyant weighing technique (Jokiel et al. 1978) and respiration rates were conducted using closed-cell incubations.