Metal bioaccumulation by the cold-water octocoral Dentomuricea aff. meteor during an ex-situ experiment testing the effects of mining-generated sediment plumes

• 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: Aquarium number; ATLAS; A Trans-Atlantic assessment and deep-water ecosystem-based spatial management plan for Europe; Cnidaria; Cobalt; Condor Seamounts; Copper; enzyme activity; experiment; Experimental treatment; gene expression; iAtlantic; ICP-MS; Inductively coupled plasma mass spectrometry; Integrated Assessment of Atlantic Marine Ecosystems in Space and Time; JPI Oceans - Ecological Aspects of Deep-Sea Mining; JPIO-MiningImpact; Managing Impacts of Deep-seA reSource exploitation; Manganese; metabolism; metal bioaccumulation; MIDAS; North Atlantic; octocorals; Sample material; Sampling_Azores_Cold_Water_Octocoral; Specimen identification
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.948407; https://doi.org/10.1594/PANGAEA.948407

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. Trace elements in the tissues and skeletons of corals at the end of the experiment were quantified by a quadrupole ICPMS (Thermo Elemental, X-Series). The metal concentrations in coral tissues are given in microgram per gram of dry weight tissue (μg g-1; dw).