Combined impacts of ocean acidification and deep-sea mining on larval survival of the deep-sea coral Desmophyllum pertusum


Here, we report the results of a multiple stressor experiment combining impacts of ocean acidification and Polymetallic sulfide (PMS) deposits produced by deep-sea mining on larval survival of the deep-sea coral Desmophyllum pertusum (syn. Lophelia pertusa). Adult colonies of D. pertusum were collected in December and January 2022 at Tisler reef, at depths between 100-120 m. Adults were maintained in aquaria and after spawning, embryos were collected and left to develop to 7-day larvae. On day 7, larvae were exposed to four experimental treatments and their combinations: two pCO2 treatments recreating present conditions (400 ppm), and conditions projected to the end of the century (RCP8.5, 1000 ppm), as well as two mining treatments corresponding to PMS particles (concentration 5 mg/L), and their leachates. Survival was monitored every 24h.

Experimental treatment: CTR: present pCO2, no mining; AC: end of century pCO2, no mining; CTR-SED: present pCO2 and PMS sediment; CTR-MET: present pCO2 and PMS leachates; AC-SED: end-of-century pCO2 and PMS sediment; AC-MET: end-of-century pCO2 and PMS leachatesCTR/present: pcO2 400 ppm; Low/end-of-century: pCO2 1000 ppmNo: No mining sediment; Sediment: sediment, metals only: metal leachates without sediment

Related Identifier
Metadata Access
Creator Rakka, Maria (ORCID: 0000-0002-8179-242X); Larsson, Ann I ORCID logo; Carreiro-Silva, Marina ORCID logo
Publisher PANGAEA
Publication Year 2024
Funding Reference European Commission Crossref Funder ID 730984 Association of European Marine Biological Laboratories Expanded; Horizon 2020 Crossref Funder ID 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);
OpenAccess false
Resource Type Dataset
Format text/tab-separated-values
Size 920 data points
Discipline History; Humanities
Spatial Coverage (10.960W, 58.996S, 10.969E, 58.997N); Tisler Reef, Skagerrak
Temporal Coverage Begin 2022-02-09T00:00:00Z
Temporal Coverage End 2022-02-15T00:00:00Z