Tissue loss of the cold-water octocoral Dentomuricea aff. meteor during an ex-situ experiment simulating deep-sea mining sediment plumes in the Azores ...

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 f...

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Bibliographic Details
Main Authors: Carreiro-Silva, Marina, Marques, Sandra, Godinho, Antonio, Raimundo, Joana, Caetano, Miguel, Brito, Pedro, Colaço, Ana, Martins, Ines
Format: Dataset
Language:unknown
Published: PANGAEA 2024
Subjects:
CCFZ
Cnidaria
Deep sea
ecophysiology
ecotoxicology
hydrothermal vents
Species
Species, unique identification Semantic URI
Species, unique identification URI
Treatment
Experiment duration
Aquaria ID
Sample ID
Tissue loss, area
Laboratory experiment
Longline deployment
Calculated
Integrated Assessment of Atlantic Marine Ecosystems in Space and Time iAtlantic
Pacific
Northeast Atlantic
Online Access:https://dx.doi.org/10.1594/pangaea.966836
https://doi.pangaea.de/10.1594/PANGAEA.966836
Description
Summary: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. The surface area of the ... : Species: Dentomuricea aff. meteor1. Experimental treatmentsControl: no particle additionPMS10: Polymetallic sulphides at a concentration of 10 mg/lPMS50: Polymetallic sulphides at a concentration of 50 mg/lNFS10: Nodule field sediments at a concentration of 10 mg/lNFS50: Nodule field sediments at a concentration of 50 mg/lParticles delivered daily in 12 hours cycles ...

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