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Fillinger, Laura; Richter, Claudio (2013): Corals, substrate and physical oceanography during the expedition Comau2012, Northern Chilean Patagonia [dataset publication series]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.811911, Supplement to: Fillinger, L; Richter, C (2013): Vertical and horizontal distribution of Desmophyllum dianthus in Comau Fjord, Chile: a cold-water coral thriving at low pH. PeerJ, 1, e194, https://doi.org/10.7717/peerj.194

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Abstract:
Cold-water corals provide an important habitat for a rich fauna along the continental margins and slopes. Although these azooxanthellate corals are considered particularly sensitive to ocean acidification, their responses to natural variations in pH and aragonite saturation are largely unknown due to the difficulty of studying their ecology in deep waters. Previous SCUBA investigations have shown an exceptionally shallow population of the cold-water coral Desmophyllum dianthus in near-surface waters of Comau Fjord, a stratified 480 m deep basin in northern Chilean Patagonia with suboxic deep waters. Here, we use a remotely operated vehicle to quantitatively investigate the distribution of D. dianthus and its physico-chemical drivers in so far uncharted naturally acidified waters. Remarkably, D. dianthus was ubiquitous throughout the fjord, but particularly abundant between 20 and 280 m depth in a pH range of 8.4 to 7.4. The persistence of individuals in aragonite-undersaturated waters suggests that present-day D. dianthus in Comau Fjord may show pre-acclimation or pre-adaptation to conditions of ocean acidification predicted to reach over 70% of the known deep-sea coral locations by the end of the century.
Project(s):
Bentho-Pelagic Processes @ AWI (AWI_BPP)
Coverage:
Median Latitude: -42.311254 * Median Longitude: -72.496971 * South-bound Latitude: -42.456000 * West-bound Longitude: -72.600717 * North-bound Latitude: -42.161017 * East-bound Longitude: -72.413767
Date/Time Start: 2012-02-07T00:00:00 * Date/Time End: 2012-02-13T20:35:00
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
18 datasets

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Datasets listed in this publication series

  1. Fillinger, L; Richter, C (2013): Camera distance to substrate along ROV profile Comau2012_CH. https://doi.org/10.1594/PANGAEA.811919
  2. Fillinger, L; Richter, C (2013): Frames extracted from the ROV videos recorded along profile Comau2012_CH. https://doi.org/10.1594/PANGAEA.811835
  3. Fillinger, L; Richter, C (2013): Camera distance to substrate along ROV profile Comau2012_CL. https://doi.org/10.1594/PANGAEA.811920
  4. Fillinger, L; Richter, C (2013): Frames extracted from the ROV videos recorded along profile Comau2012_CL. https://doi.org/10.1594/PANGAEA.811836
  5. Fillinger, L; Richter, C (2013): Camera distance to substrate along ROV profile Comau2012_LL. https://doi.org/10.1594/PANGAEA.811902
  6. Fillinger, L; Richter, C (2013): Frames extracted from the ROV videos recorded along profile Comau2012_LL. https://doi.org/10.1594/PANGAEA.811837
  7. Fillinger, L; Richter, C (2013): Camera distance to substrate along ROV profile Comau2012_NT. https://doi.org/10.1594/PANGAEA.811903
  8. Fillinger, L; Richter, C (2013): Frames extracted from the ROV videos recorded along profile Comau2012_NT. https://doi.org/10.1594/PANGAEA.811838
  9. Fillinger, L; Richter, C (2013): Camera distance to substrate along ROV profile Comau2012_PG. https://doi.org/10.1594/PANGAEA.811904
  10. Fillinger, L; Richter, C (2013): Frames extracted from the ROV videos recorded along profile Comau2012_PG. https://doi.org/10.1594/PANGAEA.811839
  11. Fillinger, L; Richter, C (2013): Physical oceanography during expedition Comau2012. https://doi.org/10.1594/PANGAEA.811832
  12. Fillinger, L; Richter, C (2013): Camera distance to substrate along ROV profile Comau2012_RB. https://doi.org/10.1594/PANGAEA.811905
  13. Fillinger, L; Richter, C (2013): Frames extracted from the ROV videos recorded along profile Comau2012_RB. https://doi.org/10.1594/PANGAEA.811840
  14. Fillinger, L; Richter, C (2013): Shape of Desmophyllum dianthus during expedition Comau2012. https://doi.org/10.1594/PANGAEA.811899
  15. Fillinger, L; Richter, C (2013): Abundace of Desmophyllum dianthus during expedition Comau2012. https://doi.org/10.1594/PANGAEA.811898
  16. Fillinger, L; Richter, C (2013): Substrate availability and usage by Desmophyllum dianthus during expedition Comau2012. https://doi.org/10.1594/PANGAEA.811842
  17. Fillinger, L; Richter, C (2013): Camera distance to substrate along ROV profile Comau2012_SW. https://doi.org/10.1594/PANGAEA.811921
  18. Fillinger, L; Richter, C (2013): Frames extracted from the ROV videos recorded along profile Comau2012_SW. https://doi.org/10.1594/PANGAEA.811841