Seawater carbonate chemistry and kelp densities and coral coverages at three study locations and photosynthesis and calcification of corals measured in the laboratory ...

• Main Authors: Agostini, Sylvain, Harvey, Ben P, Milazzo, Marco, Wada, Shigeki, Kon, Koetsu, Floc'h, Nicolas, Komatsu, K, Kuroyama, Mayumi, Hall-Spencer, Jason M
• Format: Dataset
• Language: English
• Published: PANGAEA 2021
• Subjects: Acropora solitaryensis; Animalia; Benthic animals; Benthos; Bottles or small containers/Aquaria <20 L; Calcification/Dissolution; Cnidaria; CO2 vent; Coast and continental shelf; Community composition and diversity; Entire community; Field experiment; Field observation; Growth/Morphology; Laboratory experiment; North Pacific; Porites heronensis; Primary production/Photosynthesis; Respiration; Rocky-shore community; Single species; Temperate; Temperature; Event label; Type; Species; Registration number of species; Species, unique identification; Species, unique identification URI; Treatment; Identification; Diameter; Site; Coral; Color description; Month; Growth rate; Photosynthetic efficiency; Area/locality; Shoots; Net calcification rate of calcium carbonate, light; Net calcification rate of calcium carbonate, dark; Net photosynthesis rate, oxygen; Respiration rate, oxygen; Calcification rate of calcium carbonate; Salinity; Temperature, water; Temperature, water, standard deviation; pH; pH, standard deviation; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.944056; https://doi.pangaea.de/10.1594/PANGAEA.944056

Ocean warming is altering the biogeographical distribution of marine organisms. In the tropics, rising sea surface temperatures are restructuring coral reef communities with sensitive species being lost. At the biogeographical divide between temperate and tropical communities, warming is causing macroalgal forest loss and the spread of tropical corals, fishes and other species, termed “tropicalization”. A lack of field research into the combined effects of warming and ocean acidification means there is a gap in our ability to understand and plan for changes in coastal ecosystems. Here, we focus on the tropicalization trajectory of temperate marine ecosystems becoming coral-dominated systems. We conducted field surveys and in situ transplants at natural analogues for present and future conditions under (i) ocean warming and (ii) both ocean warming and acidification at a transition zone between kelp and coral-dominated ecosystems. We show that increased herbivory by warm-water fishes exacerbates kelp forest ... : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2021) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI). The date of carbonate chemistry calculation by seacarb is 2022-05-11. ...