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Patterns in deep-sea corals: Seawater Chemistry Report for Channel Islands National Marine Sanctuary
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2021
[PDF-2.30 MB]
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Description:Between August 2014 and August 2015 three deep-sea coral research cruises were conducted within the Channel Islands National Marine Sanctuary. These surveys included four primary objectives: 1) to map the seafloor and identify survey targets with high suitability for deep-sea coral and sponges through the acquisition of high resolution bathymetry and acoustic backscatter (March 2015) 2) to make CTD-niskin casts to collect water samples between 50 and 600 meters depth to characterize the seawater chemistry (August 2014, March 2015, August 2015) 3) to characterize deep-water coral and fish assemblages using forward-looking oblique cameras mounted on an ROV (August 2014, March 2015, August 2015); and 4) to collect biological samples of corals and sponges for the purposes of age and growth studies and husbandry for subsequent manipulative experiments related to ocean acidification (August 2014, March 2015, August 2015). This report includes a summary of water sampling data. The primary purpose of water sampling was to assess the aragonite saturation near Lophelia pertusa coral habitats in CINMS. Methods were consistent with previous studies (Lipski et al 2011, Yoklavich et al 2011) to support synoptic monitoring of essential fish habitat in deep waters around CINMS. Ship time and ROV operations were provided and/or funded by NOAA’s Office of National Marine Sanctuaries and National Centers for Coastal Ocean Science and Marine Applied Research and Exploration (MARE). The CTD rosette in August 2014 was provided by NOAA Southwest Fisheries Science Center, Santa Cruz and in August 2015 by the Valentine laboratory at the University of California Santa Barbara.
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Rights Information:Public Domain
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