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Title

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)

AuthorsGori, Andrea CSIC ORCID; Orejas, Covadonga CSIC ORCID; Mienis, Furu; Ferrier-Pagès, Christine; Flöter, Sebastian; Reynaud, Stéphanie; Sweetman, Andrew K.; Roberts, John Murray; Wienberg, Claudia; Hebbeln, Dierk
Issue DateJul-2023
PublisherElsevier
CitationDeep Sea Research - Part I - Oceanographic Research Papers 197: 104052 (2023)
Abstractarge, 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
Description7 pages, 2 figures, 3 tables, supplementary data https://doi.org/10.1016/j.dsr.2023.104052.-- Data availability: Raw data are shared as Supplementary Material
Publisher version (URL)https://doi.org/10.1016/j.dsr.2023.104052
URIhttp://hdl.handle.net/10261/331402
DOI10.1016/j.dsr.2023.104052
ISSN0967-0637
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(IEO) Artículos




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