Seawater carbonate chemistry, and Lithophyllum sp. and Feldmannia spp. coverage and dry weight during experiments, 2009 ...

• Main Authors: Russell, Bayden D, Thompson, Jo-Anne I, Falkenberg, Laura J, Connell, Sean D
• Format: Dataset
• Language: English
• Published: PANGAEA 2009
• Subjects: Benthos; Coast and continental shelf; Community composition and diversity; Containers and aquaria 20-1000 L or < 1 m**2; Entire community; Laboratory experiment; Macro-nutrients; Primary production/Photosynthesis; Rocky-shore community; South Pacific; Temperate; Experimental treatment; Salinity; Temperature, water; Alkalinity, total; pH; Carbon, inorganic, dissolved; Ammonia; Ammonia, standard error; Nitrogen oxide; Nitrogen oxide, standard error; Phosphate; Phosphate, standard error; Lithophyllum sp., dry mass; Lithophyllum sp., dry mass, standard error; Lithophyllum sp., cover; Lithophyllum sp., cover, standard error; Effective quantum yield; Effective quantum yield, standard error; Feldmannia spp., dry mass; Feldmannia spp., dry mass, standard error; Feldmannia spp., cover; Feldmannia spp., cover, 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; Alkalinity titration kit Hanna Instruments; Calculated using CO2SYS; see references; 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; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.758194; https://doi.pangaea.de/10.1594/PANGAEA.758194

Climate-driven change represents the cumulative effect of global through local-scale conditions, and understanding their manifestation at local scales can empower local management. Change in the dominance of habitats is often the product of local nutrient pollution that occurs at relatively local scales (i.e. catchment scale), a critical scale of management at which global impacts will manifest. We tested whether forecasted global-scale change [elevated carbon dioxide (CO2) and subsequent ocean acidification] and local stressors (elevated nutrients) can combine to accelerate the expansion of filamentous turfs at the expense of calcifying algae (kelp understorey). Our results not only support this model of future change, but also highlight the synergistic effects of future CO2 and nutrient concentrations on the abundance of turfs. These results suggest that global and local stressors need to be assessed in meaningful combinations so that the anticipated effects of climate change do not create the false ... : 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). ...