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

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

DOI: 10.1594/PANGAEA.966548

Type: Dataset

Year: 2024

Citations: 0

AZORES DEEP-SEA RESEARCH

Dataset Open access January 2024

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

PANGAEA

10.1594/PANGAEA.966548

Open DOI

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iAtlantic

Abstract

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.

Authors

1 involved team member

Rakka, Maria

0000-0002-8179-242X

Dalhousie University, Halifax

Larsson, Ann I

0000-0003-3268-2037

University of Gothenburg

Carreiro-Silva, Marina Team member

0000-0001-6446-6342

University of the Azores

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Keywords

Ocean acidification Coral Larva Oceanography Environmental science Biology Ecology Fishery Coral reef Seawater Sulfide Fishing Hypoxia (environmental) Carbon dioxide Estuary Overall survival Ichthyoplankton Anthozoa pCO2 Cnidaria δ13C Aquatic animal Marine larval ecology Stressor Geology Effects of global warming on oceans Porites Pacific ocean Climate change Salinity Mariculture Introduced species Plankton Zoology Aquatic science Carbonate Ecosystem Invertebrate Deep water Respiration