Natural hypoxic conditions do not affect the respiration rates of the cold-water coral Desmophyllum pertusum (Lophelia pertusa) living in the Angola margin (Southeastern Atlantic Ocean)

Andrea Gori, Covadonga Orejas, Furu Mienis, Christine Ferrier-Pagès, Meri Bilan, Sebastian Flöter, Stephanie Reynaud, Andrew k. Sweetman, J murray Roberts, Claudia Wienberg, Dierk Hebbeln

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Large, well-developed and flourishing reefs dominated by the cold-water coral Desmophyllum pertusum have recently been discovered along the Angola margin in the southeastern Atlantic Ocean living under very low oxygen concentrations (0.6–1.5 mL L−1). This study assessed the respiration rates of this coral in a short-term (10 days) aquarium experiment under naturally low oxygen concentrations (1.4 ± 0.5 mL L−1) as well as under saturated oxygen concentrations (6.1 ± 0.6 mL L−1). We found no significant difference in respiration rates between the two oxygen concentrations. Furthermore, the respiration rates of D. pertusum were in the same order of magnitude as those of the same species living under normoxic conditions in other areas. This work expands the current knowledge on the metabolic activity of cold-water corals under hypoxic conditions, evidencing that low oxygen conditions are not a general limiting factor for the overall distribution of D. pertusum.
Original languageEnglish
Article number104052
Number of pages7
JournalDeep-Sea Research Part I-Oceanographic Research Papers
Volume197
Early online date2 Jun 2023
DOIs
Publication statusPublished - 1 Jul 2023

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