Metabolic rates of the cold-water octocoral Dentomuricea aff. meteor during an ex-situ experiment in the Azores

• Main Authors: Carreiro-Silva, Marina, Martins, Ines, Raimundo, Joana, Caetano, Miguel, Bettencourt, Raul, Cerqueira, Teresa, Colaço, Ana
• Format: Dataset
• Language: English
• Published: PANGAEA 2022
• Subjects: Ammonium; excretion; Aquarium number; ATLAS; A Trans-Atlantic assessment and deep-water ecosystem-based spatial management plan for Europe; Cnidaria; Colorimetric autoanalysis; Condor Seamounts; enzyme activity; experiment; Experimental treatment; Experiment duration; Fiber optic oxygen meter; Fibox 4; Presens; Germany; gene expression; iAtlantic; Integrated Assessment of Atlantic Marine Ecosystems in Space and Time; Managing Impacts of Deep-seA reSource exploitation; metabolism; metal bioaccumulation; MIDAS; North Atlantic; octocorals; Respiration rate; oxygen; Sampling_Azores_Cold_Water_Octocoral; Specimen identification
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.948409; https://doi.org/10.1594/PANGAEA.948409

We report the results of an aquaria-based experiment testing the effects of suspended particles generated during potential mining activities, on a common habitat-building coral species in the Azores, Dentomuricea aff. meteor. Coral fragments were maintained in 10-L aquaria and exposed to three experimental treatments for a period of four weeks at the DeepSeaLab aquaria facilities (Okeanos-University of the Azores): (1) control conditions (no added sediments); (2) suspended polymetallic sulphide (PMS) particles; (3) suspended quartz particles. Integrated measurements of coral respiration and ammonium release rates were carried out by closed-chamber incubation in cylindrical acrylic chambers on days 0, 13 and 27 of the experiment using an oxygen meter Fibox4 with a PSt3 sensor (PreSens, Germany). Coral respiration and excretion rates were normalized to the coral skeletal surface area.