Combined effect of ocean acidification and bottom trawling short-term exposure on larval development of the scleractinian cold-water-coral Desmophyllum pertusum

DOI

We report the results of a series of experiments investigating the combined effects of ocean acidification and suspended natural benthic sediments (NS) generated during bottom trawling on the early life stages of the cold-water coral Desmophyllum pertusum (syn. Lophelia pertusa). The experiment was conducted at the Tjärnö Marine Laboratory Facilities (University of Gothenburg, Sweden). For each experiment, the larvae/embryos were exposed to four different treatments: (1) current pCO2 (control): mimicking present-day pCO2/pH condition (pCO2 400 µatm; ambient pHT: 8.01), (2) high pCO2: a scenario reflecting the IPCC RCP8.5 prediction (pCO2 1000 µatm; low pHT: 7.63), (3) current pCO2 + NS (5 mg/L), and (4) high pCO2 + NS (5 mg/L): with the introduction of natural benthic sediments (NS) at a concentration of 5 mg/mL. The NS were collected at ~130 m water depth from a regularly trawled soft bottom close to the reef site of Säcken in the Northern Koster-fjord in Sweden, and the grain sizes ≤ 63 μm were used for the experiment. Embryos and larvae were exposed to the different treatments in 75 mL culture flasks mounted on a rotating plankton wheel to keep sediments in suspension. This second experiment examined the effects on larval survival and swimming speed in two sub-experiments: A) short-term exposure (48 hours) and B) long-term exposure (1 week). This dataset presents the results for larval development under short-term exposure.

Number of larvae or embryos used for the experiments: 30-35 larvae or embryos per replicateCondition is based on the percentage of abnormalities. If greater than 50%, the condition is considered as bad; otherwise, it is considered as good.

Identifier
DOI https://doi.org/10.1594/PANGAEA.964222
Related Identifier References https://doi.org/10.1594/PANGAEA.964224
Related Identifier References https://doi.org/10.1594/PANGAEA.964225
Related Identifier References https://doi.org/10.1594/PANGAEA.964220
Related Identifier References https://doi.org/10.1594/PANGAEA.964219
Related Identifier References https://doi.org/10.1594/PANGAEA.964221
Related Identifier References https://doi.org/10.1594/PANGAEA.964223
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.964222
Provenance
Creator Sire de Vilar, Anaïs ORCID logo; Carreiro-Silva, Marina ORCID logo; Rakka, Maria (ORCID: 0000-0002-8179-242X); Strömberg, Susanna M; Larsson, Ann I ORCID logo
Publisher PANGAEA
Publication Year 2024
Funding Reference European Commission https://doi.org/10.13039/501100000780 Crossref Funder ID LIFE18 NAT/SE/000959 https://www.lifelophelia.se/ LIFE Lophelia; 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; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Resource Type Dataset
Format text/tab-separated-values
Size 96 data points
Discipline Earth System Research
Spatial Coverage (10.960W, 58.876S, 11.146E, 58.997N); Tisler Reef, Skagerrak; Tjärnö, Schweden
Temporal Coverage Begin 2022-11-25T09:30:00Z
Temporal Coverage End 2023-03-08T00:00:00Z