Carreiro-Silva, Marina; Marques, Sandra; Godinho, Antonio; Raimundo, Joana; Caetano, Miguel; Brito, Pedro; Colaço, Ana; Martins, Ines (2024): 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 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.966835
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Abstract:
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.
Project(s):
Funding:
Fundação para a Ciência e Tecnologia (FCT), grant/award no. 2020.03346.CEECIND/CP1611/CT0003: Stimulus of Scientific Employment
Fundação para a Ciência e Tecnologia (FCT), grant/award no. 2021.00101.CEECIND/CP1669/CT0001: Stimulus of Scientific Employment
Fundação para a Ciência e Tecnologia (FCT), grant/award no. CCCIND/03346/2020: Stimulus of Scientific Employment
Fundação para a Ciência e Tecnologia (FCT), grant/award no. CEECIND/00101/2021: Stimulus of Scientific Employment
Horizon 2020 (H2020), grant/award no. 818123: Integrated Assessment of Atlantic Marine Ecosystems in Space and Time
Coverage:
Median Latitude: 38.536510 * Median Longitude: -28.836243 * South-bound Latitude: 38.533330 * West-bound Longitude: -29.039155 * North-bound Latitude: 38.539689 * East-bound Longitude: -28.633330
Date/Time Start: 2020-10-15T00:00:00 * Date/Time End: 2022-06-20T00:00:00
Event(s):
Dentomuricea_aff_meteor_Aquaria_Experiment_2 * Latitude: 38.533330 * Longitude: -28.633330 * Date/Time: 2022-06-20T00:00:00 * Location: Azores * Method/Device: Laboratory experiment * Comment: Experiment conducted at the DeepSeaLab aquaria facilities of the Okeanos Institute, University of the Azore. Species: Dentomuricea aff. meteor
Dentomuricea_aff_meteor_Sampling_Site * Latitude: 38.539689 * Longitude: -29.039155 * Date/Time: 2020-10-15T00:00:00 * Location: Condor Seamounts * Method/Device: Longline deployment (LLDEP) * Comment: Dentomuricea aff. meteor collected as by-catch from experimental long-line fisheries on R/V Arquipelago (CONDOR monitoring program, University of the Azores) from 185-210 m depth.
Comment:
Species: Dentomuricea aff. meteor
1. Experimental treatments
Control: no particle addition
PMS10: Polymetallic sulphides at a concentration of 10 mg/l
PMS50: Polymetallic sulphides at a concentration of 50 mg/l
NFS10: Nodule field sediments at a concentration of 10 mg/l
NFS50: Nodule field sediments at a concentration of 50 mg/l
Particles delivered daily in 12 hours cycles
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Experiment | Exp | Carreiro-Silva, Marina | |||
| 2 | Species | Species | Carreiro-Silva, Marina | Species affinis | ||
| 3 | Species, unique identification (Semantic URI) | Species UID (Semantic URI) | Carreiro-Silva, Marina | |||
| 4 | Species, unique identification (URI) | Species UID (URI) | Carreiro-Silva, Marina | |||
| 5 | Species, unique identification | Species UID | Carreiro-Silva, Marina | |||
| 6 | Analysis date/time, experiment | Date/time analysis exp | Carreiro-Silva, Marina | Experiment duration:28 days. Experimental time: time 0 (T0, right before the start of the experiment), other times are given in days after the beginning of the experiment | ||
| 7 | Aquaria ID | Aquaria ID | Carreiro-Silva, Marina | |||
| 8 | Treatment | Treat | Carreiro-Silva, Marina | |||
| 9 | Suspended matter, total | TSS | mg/l | Carreiro-Silva, Marina | Calculated |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
861 data points