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


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.

Respiration and excretion rates: Results from closed cell incubations on oxygen consumption and ammonium excretionExperimental Time: T0 incubation before first feeding event; Tf incubation after last feeding event

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Metadata Access
Creator Carreiro-Silva, Marina; Martins, Ines; Raimundo, Joana; Caetano, Miguel; Bettencourt, Raul; Cerqueira, Teresa; Colaço, Ana
Publisher PANGAEA
Publication Year 2022
Funding Reference Fundação para a Ciência e Tecnologia, Mining2 0005 2017; Horizon 2020, 678760; Horizon 2020, 818123; Seventh Framework Programme, 603418
Rights Data access is restricted (moratorium, sensitive data, license constraints)
OpenAccess false
Language English
Resource Type Dataset
Format text/tab-separated-values
Size 233 data points
Discipline Earth System Research
Spatial Coverage (-29.039 LON, 38.540 LAT); Condor Seamounts