Seawater carbonate chemistry, physiological performance of Semibalanus balanoides and Nucella lapillus, and their predator-prey dynamics., supplement to: Harvey, Ben P; Moore, Pippa J (2017): Ocean warming and acidification prevent compensatory response in a predator to reduced prey quality. Marine Ecology Progress Series, 563, 111-122

• Main Authors: Harvey, Ben P, Moore, Pippa J
• Format: Dataset
• Language: English
• Published: PANGAEA - Data Publisher for Earth & Environmental Science 2017
• Subjects: Animalia; Arthropoda; Behaviour; Benthic animals; Benthos; Bottles or small containers/Aquaria <20 L; Coast and continental shelf; Growth/Morphology; Laboratory experiment; Mollusca; Mortality/Survival; North Atlantic; Nucella lapillus; Respiration; Semibalanus balanoides; Species interaction; Temperate; Temperature; Type; Species; Registration number of species; Uniform resource locator/link to reference; Experiment duration; Partial pressure of carbon dioxide water at sea surface temperature wet air; Temperature, water; Replicate; Growth rate; Tissue production; Survival; Mass change; Respiration rate, oxygen; Feeding rate, number of prey per mass; Feeding rate, energy per mass; Ingestion efficiency; pH; pH, standard deviation; Temperature, standard deviation; Salinity; Salinity, standard deviation; Alkalinity, total; Alkalinity, total, standard deviation; Carbon dioxide, partial pressure, standard deviation; Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Bicarbonate ion; Bicarbonate ion, standard deviation; Carbonate ion; Carbonate ion, standard deviation; Carbon dioxide; Carbon dioxide, standard deviation; Calcite saturation state; Calcite saturation state, standard deviation; Aragonite saturation state; Aragonite saturation state, standard deviation; Carbonate system computation flag; Fugacity of carbon dioxide water at sea surface temperature wet air; Experiment; Potentiometric; Potentiometric titration; Calculated using CO2calc; Calculated using seacarb after Nisumaa et al. 2010; Ocean Acidification International Coordination Centre OA-ICC; Ocean acidification; Dogwhelk
• Online Access: https://dx.doi.org/10.1594/pangaea.883315; https://doi.pangaea.de/10.1594/PANGAEA.883315

While there is increasing evidence for the impacts of climate change at the individual level, much less is known about how species' likely idiosyncratic responses may alter ecological interactions. Here, we demonstrate that ocean acidification and warming not only directly alter species' (individual) physiological performance, but also their predator-prey dynamics. Our results demonstrate that tissue production (used as a proxy for prey quality) in the barnacle Semibalanus balanoides was reduced under scenarios of future climate change, and hence their ability to support energy acquisition for dogwhelk Nucella lapillus through food provision was diminished. However, rather than increasing their feeding rates as a compensatory mechanism, consumption rates of N. lapillus were reduced to the point that they exhibited starvation (a loss of somatic tissue), despite prey resources remaining abundant. The resilience of any marine organism to stressors is fundamentally linked to their ability to obtain and assimilate energy. Therefore, our findings suggest that the cost of living under future climate change may surpass the energy intake from consumption rates, which is likely exacerbated through the bottom-up effects of reduced prey quality. If, as our results suggest, changes in trophic transfer of energy are more common in a warmer, high CO2 world, such alterations to the predator-prey dynamic may have negative consequences for the acquisition of energy in the predator and result in energetic trade-offs. Given the importance of predator-prey interactions in structuring marine communities, future climate change is likely to have major consequences for community composition and the structure and function of ecosystems. : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2016) 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 2017-11-21.