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  • 1
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    Cellular stress biomarkers result of the cold-water coral Viminella flagellum during a land-based experiment testing the cumulative effect of Cu exposure and ocean acidification (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: We report the results of a land-based experiment testing the cumulative effects of copper (Cu) exposure and ocean acidification (OA). Corals were obtained as by-catch during an experimental long-line fisheries campaign (CONDOR monitoring program, Okeanos-University of the Azores) on the Condor Seamount (38°54′N, 29°05′W), Azores Archipelago, at 200 m depth in October 2019. The experiment was undertaken at the DeepSeaLab aquaria facilities (Okeanos-University of the Azores) where corals were exposed to four OA/Cu-contamination scenarios: (1) ambient pCO2/pH level as measured in situ conditions (385 μatm/ pH 8.09); (2) high pCO2/reduced pH (IPCC RCP8.5 scenario, 1000 μatm/ pH 7.73); (3) ambient pCO2/pH level and additional Cu concentration (60 µg/l); (4) high pCO2/reduced pH and additional Cu concentration (60 µg/l). The pH/pCO2 modification was achieved by bubbling seawater with either pure CO2 (to increase pCO2) or CO2 low air (to decrease pCO2). The copper concentration used in this experiment followed a trial simulating a polymetallic particles plume release during a potential deep-sea mining event. This sublethal concentration was found to be the highest copper concentration dissolved in seawater. Metabolic (CA and Hsp70), oxidative damage (SOD, MDA) and detoxification (GST) biomarkers were measured in 4 corals from each treatment at the end of the experiment, using a multiplate spectrophotometer reader.
    Keywords: Aquaria ID; Azores; Azores_Deep_Octocoral_Sampling_Viminella_flagellum; Carbonic anhydrase activity, per protein; Colony number/ID; Condor Seamounts; Experiment; Glutathione S-transferase, activity, per protein mass; Heat shock protein 70, per protein mass; iAtlantic; Integrated Assessment of Atlantic Marine Ecosystems in Space and Time; Laboratory experiment; Malondialdehyde, per protein mass; Multiskan Microplate spectrophotometer, Thermo Scientific™, GO; Species, unique identification; Species, unique identification (Semantic URI); Species, unique identification (URI); Superoxide dismutase activity, unit per protein mass; Time in days; Treatment; Viminella_flagellum_Aquaria_Experiment
    Type: Dataset
    Format: text/tab-separated-values, 556 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 2
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    Cellular stress biomarkers result of the cold-water coral Dentomuricea aff. meteor during a land-based experiment testing the cumulative effect of Cu exposure and ocean acidification (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: We report the results of a land-based experiment testing the cumulative effects of copper (Cu) exposure and ocean acidification (OA). Corals were obtained as by-catch during experimental long-line fisheries campaigns on board R/V "Arquipélago" (ARQDAÇO monitoring program, University of the Azores) at Baixa de São Mateus at 185 m depth in April 2019. The experiment was undertaken at the DeepSeaLab aquaria facilities (Okeanos-University of the Azores) where corals were exposed to four OA/Cu-contamination scenarios: (1) ambient pCO2/pH level as measured in situ conditions (385 μatm/ pH 8.09); (2) high pCO2/reduced pH (IPCC RCP8.5 scenario, 1000 μatm/ pH 7.73); (3) ambient pCO2/pH level and additional Cu concentration (60 µg/l); (4) high pCO2/reduced pH and additional Cu concentration (60 µg/l). The pH/pCO2 modification was achieved by bubbling seawater with either pure CO2 (to increase pCO2) or CO2 low air (to decrease pCO2). The copper concentration used in this experiment followed a trial simulating a polymetallic particles plume release during a potential deep-sea mining event. This sublethal concentration was found to be the highest copper concentration dissolved in seawater. Metabolic (CA and Hsp70), oxidative damage (SOD, MDA) and detoxification (GST) biomarkers were measured in 4 corals from each treatment at the end of the experiment, using a multiplate spectrophotometer reader.
    Keywords: Aquaria ID; Azores; Azores_Deep_Octocoral_Sampling_Viminella_flagellum; Carbonic anhydrase activity, per protein; Colony number/ID; Condor Seamounts; Dentomuricea_aff_meteor_Aquaria_Experiment_1; Experiment; Glutathione S-transferase, activity, per protein mass; Heat shock protein 70, per protein mass; iAtlantic; Integrated Assessment of Atlantic Marine Ecosystems in Space and Time; Laboratory experiment; Malondialdehyde, per protein mass; Multiskan Microplate spectrophotometer, Thermo Scientific™, GO; Species; Species, unique identification (Semantic URI); Species, unique identification (URI); Superoxide dismutase activity, unit per protein mass; Time in days; Treatment
    Type: Dataset
    Format: text/tab-separated-values, 640 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 3
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    Stress biomarkers in the cold-water octocoral Dentomuricea aff. meteor during an ex-situ experiment in the Azores (2022)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: 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. Antioxidant stress related biomarkers (glutathione S−transferase, superoxide dismutase, catalase, malondialdehyde) in D. aff. meteor tissues were used to evaluate the degree of cellular stress induced by exposure to PMS and quartz particles at times 0 and 13 days in all treatments and from the control and quartz treatments also at time 27 days of the experiment.
    Keywords: Activity description; Aquarium number; ATLAS; A Trans-Atlantic assessment and deep-water ecosystem-based spatial management plan for Europe; Biomarker; Cnidaria; Condor Seamounts; enzyme activity; experiment; Experimental treatment; Experiment duration; gene expression; 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; North Atlantic; octocorals; Sampling_Azores_Cold_Water_Octocoral; SPEC; Specimen identification; Spectrophotometer
    Type: Dataset
    Format: text/tab-separated-values, 702 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 4
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    Respiration rates of the cold-water octocoral Dentomuricea aff. meteor during an ex-situ experiment simulating deep-sea mining sediment plumes in the Azores (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: We report the results of an aquaria-based experiment testing the effects of simulated sediment plumes generated during mining activities for the extraction of ferromanganese nodules in the Clarion-Clipperton Fracture Zone (CCFZ), northeastern equatorial Pacific Ocean, and seafloor massive sulfides from a hydrothermal vent field in the Azores, northeast Atlantic, on the physiology of the cold-water octocoral Dentomuricea aff. meteor. Coral fragments were exposed to five experimental treatments for a period of four weeks at the DeepSeaLab aquaria facilities (Okeanos-University of the Azores): (1) suspended plumes of abyssal sediments from nodule fields at a concentration of 10 mg/l; (2) suspended plumes of abyssal sediments from nodule fields at a concentration of 50 mg/l; (3) hydrothermal polymetallic sulphide particles at a concentration of 10 mg/l; (4) hydrothermal polymetallic sulphide particles at a concentration of 50 mg/l; and (5) a control treatment with no sediment addition. Measurements of respiration were made at T0 (immediately before the start of the experiment), and every week until the end of the experiment using an oxygen meter Fibox4 and PSt3 sensor spots (PreSens, Germany). Coral respiration rates were normalized to the coral skeletal surface area.
    Keywords: Aquaria ID; Azores; CCFZ; Cnidaria; Condor Seamounts; Deep sea; Dentomuricea_aff_meteor_Aquaria_Experiment_2; Dentomuricea_aff_meteor_Sampling_Site; ecophysiology; ecotoxicology; Experiment duration; hydrothermal vents; iAtlantic; Integrated Assessment of Atlantic Marine Ecosystems in Space and Time; Laboratory experiment; LLDEP; Longline deployment; Oxygen Dipping Probe, DP-PSt3, Fibox 4, PreSens; Respiration rate, oxygen; Sample comment; Sample ID; Species; Species, unique identification (Semantic URI); Species, unique identification (URI); Treatment
    Type: Dataset
    Format: text/tab-separated-values, 1006 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 5
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    Metabolic rates of the cold-water octocoral Dentomuricea aff. meteor during an ex-situ experiment in the Azores (2022)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: 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.
    Keywords: 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
    Type: Dataset
    Format: text/tab-separated-values, 233 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 6
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    Metal bioaccumulation by the cold-water octocoral Dentomuricea aff. meteor during an ex-situ experiment testing the effects of mining-generated sediment plumes (2022)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: 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).
    Keywords: 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
    Type: Dataset
    Format: text/tab-separated-values, 182 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 7
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    Results of an ex-situ experiment testing the effects of mining-generated sediment plumes on the cold-water octocoral Dentomuricea aff. meteor in the Azores (2022)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: 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. Corals were collected from the summit of Condor Seamount (Azores, NE Atlantic) at depths between 185-210 m in August 2014. 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. PMS particles were obtained by grinding PMS inactive chimney rocks collected at the hydrothermal vent field Lucky Strike. Both particle types were delivered at a concentration of 25 mg L-1. The putative effects of PMS particles were evaluated through measurements of the coral physiological responses at the levels of the organism (oxygen consumption, ammonium excretion), tissue (bioaccumulation of metals) and cell (enzyme activity and gene expression).
    Keywords: ATLAS; A Trans-Atlantic assessment and deep-water ecosystem-based spatial management plan for Europe; Cnidaria; Condor Seamounts; enzyme activity; experiment; gene expression; 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; North Atlantic; octocorals; Sampling_Azores_Cold_Water_Octocoral
    Type: Dataset
    Format: application/zip, 7 datasets
    Location Call Number Expected Availability
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  • 8
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    Aquarium monitoring during a land-based experiment testing the cumulative effect of Cu exposure and ocean acidification on cold-water coral Viminella flagellum (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: We report the results of a land-based experiment testing the cumulative effects of copper (Cu) exposure and ocean acidification (OA). Corals were obtained as by-catch during an experimental long-line fisheries campaign (CONDOR monitoring program, Okeanos-University of the Azores) on the Condor Seamount (38°54′N, 29°05′W), Azores Archipelago, at 200 m depth in October 2019. The experiment was undertaken at the DeepSeaLab aquaria facilities (Okeanos-University of the Azores) where corals were exposed to four OA/Cu-contamination scenarios: (1) ambient pCO2/pH level as measured in situ conditions (385 μatm/ pH 8.09); (2) high pCO2/reduced pH (IPCC RCP8.5 scenario, 1000 μatm/ pH 7.73); (3) ambient pCO2/pH level and additional Cu concentration (60 µg/l); (4) high pCO2/reduced pH and additional Cu concentration (60 µg/l). The pH/pCO2 modification was achieved by bubbling seawater with either pure CO2 (to increase pCO2) or CO2 low air (to decrease pCO2). The copper concentration used in this experiment followed a trial simulating a polymetallic particles plume release during a potential deep-sea mining event. This sublethal concentration was found to be the highest copper concentration dissolved in seawater. Seawater physical-chemical parameters were measured daily in each chamber. Temperature, pH and oxygen saturation were measured manually in each aquaria every day using a Mettler-Toledo S8 glass and a Fibox4 (PreSens) with an Oxygen Probe PSt3.
    Keywords: Azores; Azores_Deep_Octocoral_Sampling_Viminella_flagellum; Chamber number; Condor Seamounts; Experiment; Glass electrode (Crison pH 25+); iAtlantic; Integrated Assessment of Atlantic Marine Ecosystems in Space and Time; Laboratory experiment; Oxygen; Oxygen Dipping Probe, DP-PSt3, Fibox 4, PreSens; pH; Sample ID; Species, unique identification; Species, unique identification (Semantic URI); Species, unique identification (URI); Temperature, water; Time in days; Treatment; Viminella_flagellum_Aquaria_Experiment
    Type: Dataset
    Format: text/tab-separated-values, 2552 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 9
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    Suspended sediment concentrations during an ex-situ experiment on the effects of simulated deep-sea mining sediment plumes on the cold-water octocoral Dentomuricea aff. meteor in the Azores (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: We report the results of an aquaria-based experiment testing the effects of simulated sediment plumes generated during mining activities for the extraction of ferromanganese nodules in the Clarion-Clipperton Fracture Zone (CCFZ), northeastern equatorial Pacific Ocean, and seafloor massive sulfides from a hydrothermal vent field in the Azores, northeast Atlantic, on the physiology of the cold-water octocoral Dentomuricea aff. meteor. Coral fragments were exposed to five experimental treatments for a period of four weeks at the DeepSeaLab aquaria facilities (Okeanos-University of the Azores): (1) suspended plumes of abyssal sediments from nodule fields at a concentration of 10 mg/l; (2) suspended plumes of abyssal sediments from nodule fields at a concentration of 50 mg/l; (3) hydrothermal polymetallic sulphide particles at a concentration of 10 mg/l; (4) hydrothermal polymetallic sulphide particles at a concentration of 50 mg/l; and (5) a control treatment with no sediment addition. Sediments were added in 12 h daily cycles. The concentration of suspended sediments in each aquaria were monitored twice a week by filtering seawater and weighing sediments.
    Keywords: Analysis date/time, experiment; Aquaria ID; Azores; Calculated; CCFZ; Cnidaria; Condor Seamounts; Deep sea; Dentomuricea_aff_meteor_Aquaria_Experiment_2; Dentomuricea_aff_meteor_Sampling_Site; ecophysiology; ecotoxicology; Experiment; hydrothermal vents; iAtlantic; Integrated Assessment of Atlantic Marine Ecosystems in Space and Time; Laboratory experiment; LLDEP; Longline deployment; Species; Species, unique identification; Species, unique identification (Semantic URI); Species, unique identification (URI); Suspended matter, total; Treatment
    Type: Dataset
    Format: text/tab-separated-values, 861 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 10
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    Aquarium monitoring during an ex-situ experiment on the effects of simulated deep-sea mining sediment plumes on the cold-water octocoral Dentomuricea aff. meteor in the Azores (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: We report the results of an aquaria-based experiment testing the effects of simulated sediment plumes generated during mining activities for the extraction of ferromanganese nodules in the Clarion-Clipperton Fracture Zone (CCFZ), northeastern equatorial Pacific Ocean, and seafloor massive sulfides from a hydrothermal vent field in the Azores, northeast Atlantic, on the physiology of the cold-water octocoral Dentomuricea aff. meteor. Coral fragments were exposed to five experimental treatments for a period of four weeks at the DeepSeaLab aquaria facilities (Okeanos-University of the Azores): (1) suspended plumes of abyssal sediments from nodule fields at a concentration of 10 mg/l; (2) suspended plumes of abyssal sediments from nodule fields at a concentration of 50 mg/l; (3) hydrothermal polymetallic sulphide particles at a concentration of 10 mg/l; (4) hydrothermal polymetallic sulphide particles at a concentration of 50 mg/l; and (5) a control treatment with no sediment addition. Seawater physical-chemical parameters were measured daily in each aquarium. Temperature and pH were measured manually in each aquaria every day using a Mettler-Toledo Seven2Go pH /Ion meter S8, salinity was measured with a S30 SevenEasyTM conductivity meter and oxygen concentration was measured with a Fibox4 (PreSens) with a Oxygen Dipping Probe DP-PSt3.
    Keywords: Analysis date/time, experiment; Aquaria ID; Azores; CCFZ; Cnidaria; Condor Seamounts; Conductivity meter, S30 SevenEasy; Deep sea; Dentomuricea_aff_meteor_Aquaria_Experiment_2; Dentomuricea_aff_meteor_Sampling_Site; ecophysiology; ecotoxicology; Experiment; Experiment duration; hydrothermal vents; iAtlantic; Integrated Assessment of Atlantic Marine Ecosystems in Space and Time; Laboratory experiment; LLDEP; Longline deployment; Oxygen; Oxygen Dipping Probe, DP-PSt3, Fibox 4, PreSens; pH; pH meter, Mettler Toledo, Seven2Go pH /Ion meter S8; Salinity; Species; Species, unique identification (Semantic URI); Species, unique identification (URI); Temperature, water; Treatment
    Type: Dataset
    Format: text/tab-separated-values, 3702 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
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