Aquarium monitoring of an ex-situ experiment involving the cold-water octocoral Dentomuricea aff. meteor

• 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: Ammonia+Ammonium; Aquarium number; ATLAS; A Trans-Atlantic assessment and deep-water ecosystem-based spatial management plan for Europe; Cnidaria; Colorimetric autoanalysis; Condor Seamounts; Conductivity meter; S30 SevenEasy; Dissolved oxygen; in water; interpolated; enzyme activity; experiment; Experimental treatment; Experiment duration; Fiber optic oxygen meter; Fibox 4; Presens; Germany; gene expression; Glass electrode (Crison pH 25+); iAtlantic; 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; metabolism; metal bioaccumulation; MIDAS; Nitrate; North Atlantic; octocorals; pH; Salinity; Sampling_Azores_Cold_Water_Octocoral; Temperature; water
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.948403; https://doi.org/10.1594/PANGAEA.948403

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. Seawater physical-chemical parameters were measured daily in each aquarium. Seawater salinity was measured with a S30 SevenEasy™ conductivity meter, pH and temperature with a glass electrode (Crison pH 25+), and oxygen with a Fibox4 (PreSens) with a Oxygen Dipping Probe DP-PSt3. Seawater samples for inorganic nutrient analyses were collected on times 0 (immediately before the start of the experiment), and once a week on days 6, 13, 20 and 27 of the experiment and determined using a colorimetric autoanalyzer Sanplus with segmented flow.