Calcification was assessed via the buoyant weighing technique using a balance precise to +-0.01 g, yielding a precision of calcification estimates of +-1% or better. Corals which died, experienced >25% partial mortality, or Porites which were attacked by the predatory nudibranch Phestilla spp. were dropped from the calcification analysis.
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Tank treatments:
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Below, "High" or "Low" pH refers to target pH levels. "Fed" or "Unfed" refers to whether the tank was fed zooplankton not.
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Tank t1: High pH, Unfed
\nTank t2: High pH, Fed
\nTank t3: Low pH, Unfed
\nTank t4: Low pH, Fed
\nTank t5: High pH, Fed
\nTank t6: Low pH, Unfed
\nTank t7: Low pH, Fed
\nTank t8: High pH, Unfed
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Location information:
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\u200bThe coral collection sites were the reef around HIMB and the reef adjacent to Kaiona Beach Park in Waimanalo (about 1 mile north of the Makai Pier). The lat/long for the approximate center of the sampling area at each site are as follows, and the sampling at each site was located within about +/- 200 m of that central point:
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Kane'ohe Bay: 21.4336 N, -157.7861 W
\nWaimanalo Bay: 21.3272 N, -157.6811 W
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The tank experiments were conducted at the Point Lab on Coconut Island, which is ~18 km from the sampling area in Waimanalo Bay and adjacent to the sampling area in Kane'ohe Bay. The high pH treatment was ambient Kane'ohe Bay seawater chemistry (pH ~7.9-8.0) whereas the target for the low pH treatment was ~0.25 units below ambient.
This dataset contains coral (Porites compressa and Montipora capitata) calcification rates from experiments conducted from December of 2014 to Nov of 2015\u00a0on Oahu, Hawaii. \u00a0Coral nubbins were collected at Kaneohe Bay\u00a0and Waimanalo\u00a0Bay, Oahu, HI at a depth 0.5-3 m.
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Datasets relevant to this experiment:
\n*\u00a0salinity
\n*\u00a0pH
\n*\u00a0water\u00a0temperatures
\n*\u00a0Total alkalinity
BCO-DMO Data Manager Processing Notes:
\n* added a conventional header with dataset name, PI name, version date
\n* modified parameter names to conform with BCO-DMO naming conventions
\n* added ISO Date format generated from Date and Time values
\n* date and time (local HST) changed to format yyyy-mm-dd
\n* \u00a0original file had multiple columns of calcification for every date sampled. \u00a0Added two columns; \u00a0date of calcification measurement, and calcification column. Transformed data to fill the two columns and removed all the columns for calcification by date.
\n* Added coral species name column and combined the data for Porites compressa and Montipora capitata
\n* rounded calification values to three decimal places
\n* replaced code KB with \"Kaneohe Bay\" and WB with \"Waimanalo Bay\" in the collection location column
\n* added lat_approx,lon_approx for the two bays
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