Deep-sea mining impacts on larval survival of the deep-sea coral Desmophyllum pertusum


In this dataset, we report the results of an aquaria experiment aiming at determining the impacts of Polymetallic sulfide (PMS) plumes of varying concentrations created by deep-sea mining on larval survival of the deep-sea coral Desmophyllum pertusum. Colonies of D. pertusum were collected in December 2022 and January 2023 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, recreating the potential effects of a PMS mining plume: two treatments contained PMS particles at concentrations of 2.5 mg/L and 5 mg/L respectively, and another two contained only the leachates of PMS particle solutions corresponding to the aforementioned PMS particle concentrations. Temperature was maintained at 8-8.5 °C and pHT at 8.01. Survival was checked by counting surviving larvae after 24h of exposure.

Experimental treatment, PMS2.5 PMS sediment with concentration 2.5 mg/L, PMS5 PMS sediment with concentration 5 mg/L, LCH2.5: leachates from PMS solution of 2.5 mg/L, LCH5: leachates from PMS solution of 5 mg/L

Related Identifier
Metadata Access
Creator Sire de Vilar, Anaïs ORCID logo; Carreiro-Silva, Marina ORCID logo; Larsson, Ann I 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 210 data points
Discipline History; Humanities
Spatial Coverage (10.960W, 58.996S, 10.969E, 58.997N); Tisler Reef, Skagerrak