Respiration rates of the cold-water coral Dentomuricea aff. meteor during a land-based experiment testing the cumulative effect of Cu exposure and ocean acidification

DOI

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.Measurements of respiration were made immediately before the start of the experiment (T0) and after 9 days (T9, end of the experiment), when corals started to show tissue necrosis, using an oxygen meter Fibox4 with a PSt3 sensor (PreSens, Germany). Coral respiration rates were normalized to the coral surface area.

Species: octocoral Dentomuricea aff. meteor1. Experimental treatmentsTreatments8.1 + [0]: ambient pH plus no copper addition8.1 + [60]: ambient pH plus Cu concentration of 60 μg/l7.7 + [0]: low pH plus no copper addition7.7 + [60]: low pH plus Cu concentration of 60 μg/lExperiment duration: 9 days

Identifier
DOI https://doi.org/10.1594/PANGAEA.966789
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.966789
Provenance
Creator Martins, Ines ORCID logo; Goulart, Joana; Godinho, Antonio; Mano, Beatriz; Sire de Vilar, Anaïs ORCID logo; Carreiro-Silva, Marina ORCID logo
Publisher PANGAEA
Publication Year 2024
Funding Reference European Commission https://doi.org/10.13039/501100000780 Crossref Funder ID ACORES-01-0145-FEDER-000122 https://imar.org.pt/projetos/ ACORES 2020; European Commission https://doi.org/10.13039/501100000780 Crossref Funder ID ACORES-01-0145-FEDER-000140 InvestigadoresMarAZ-Consolidar corpo de investigadores em Ciências do Mar nos Açores; Horizon 2020 https://doi.org/10.13039/501100007601 Crossref Funder ID 818123 https://doi.org/10.3030/818123 Integrated Assessment of Atlantic Marine Ecosystems in Space and Time
Rights Creative Commons Attribution 4.0 International; Data access is restricted (moratorium, sensitive data, license constraints); https://creativecommons.org/licenses/by/4.0/
OpenAccess false
Representation
Resource Type Dataset
Format text/tab-separated-values
Size 556 data points
Discipline Earth System Research
Spatial Coverage (-29.083W, 38.250S, -28.270E, 38.900N); Condor Seamounts; Azores
Temporal Coverage Begin 2019-04-30T00:00:00Z
Temporal Coverage End 2019-10-10T00:00:00Z