Seawater carbonate chemistry and coverage and dry weight of Ecklonia radiata during experiments, 2010 ...

• Main Authors: Connell, Sean D, Russell, Bayden D
• Format: Dataset
• Language: English
• Published: PANGAEA 2010
• Subjects: Benthos; Coast and continental shelf; Community composition and diversity; Containers and aquaria 20-1000 L or < 1 m**2; Entire community; Indian Ocean; Laboratory experiment; Primary production/Photosynthesis; Rocky-shore community; Temperate; Temperature; Experimental treatment; Salinity; Temperature, water; Alkalinity, total; Carbon, inorganic, dissolved; pH; Ecklonia radiata, cover; Ecklonia radiata, cover, standard error; Ecklonia radiata, dry mass; Ecklonia radiata, dry mass, standard error; Effective quantum yield; Effective quantum yield, standard error; Carbonate system computation flag; Carbon dioxide; Partial pressure of carbon dioxide water at sea surface temperature wet air; Fugacity of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Carbonate ion; Aragonite saturation state; Calcite saturation state; Measured; Calculated using CO2SYS; Calculated; Calculated using seacarb after Nisumaa et al. 2010; European network of excellence for Ocean Ecosystems Analysis EUR-OCEANS; European Project on Ocean Acidification EPOCA; Ocean Acidification International Coordination Centre OA-ICC; Indian; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.758189; https://doi.pangaea.de/10.1594/PANGAEA.758189

Predictions about the ecological consequences of oceanic uptake of CO2 have been preoccupied with the effects of ocean acidification on calcifying organisms, particularly those critical to the formation of habitats (e.g. coral reefs) or their maintenance (e.g. grazing echinoderms). This focus overlooks the direct effects of CO2 on non-calcareous taxa, particularly those that play critical roles in ecosystem shifts. We used two experiments to investigate whether increased CO2 could exacerbate kelp loss by facilitating non-calcareous algae that, we hypothesized, (i) inhibit the recovery of kelp forests on an urbanized coast, and (ii) form more extensive covers and greater biomass under moderate future CO2 and associated temperature increases. Our experimental removal of turfs from a phase-shifted system (i.e. kelp- to turf-dominated) revealed that the number of kelp recruits increased, thereby indicating that turfs can inhibit kelp recruitment. Future CO2 and temperature interacted synergistically to have a ... : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Lavigne and Gattuso, 2011) 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). ...