Combined effect of ocean acidification and bottom trawling on embryonic survival of the scleractinian cold-water-coral Desmophyllum pertusum ...

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...

Full description

Bibliographic Details
Main Authors: Sire de Vilar, Anaïs, Carreiro-Silva, Marina, Rakka, Maria, Strömberg, Susanna M, Larsson, Ann I
Format: Dataset
Language:unknown
Published: PANGAEA 2024
Subjects:
Online Access:https://dx.doi.org/10.1594/pangaea.964218
https://doi.pangaea.de/10.1594/PANGAEA.964218
Description
Summary: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 ... : Number of larvae or embryos used for the experiments: 30-35 larvae or embryos per replicate ...