Interactive effects of ocean acidification and rising sea temperatures alter predation rate and predator selectivity in reef fish communities, supplement to: Ferrari, Maud C O; Munday, Philip L; Rummer, Jodie L; McCormick, Mark I; Corkill, Katherine C; Watson, Sue-Ann; Allan, Bridie J M; Meekan, Mark; Chivers, Douglas P (2015): Interactive effects of ocean acidification and rising sea temperatures alter predation rate and predator selectivity in reef fish communities. Global Change Biology, 21(5), 1848-1855

• Main Authors: Ferrari, Maud C O, Munday, Philip L, Rummer, Jodie L, McCormick, Mark I, Corkill, Katherine C, Watson, Sue-Ann, Allan, Bridie J M, Meekan, Mark, Chivers, Douglas P
• Format: Dataset
• Language: English
• Published: PANGAEA - Data Publisher for Earth & Environmental Science 2015
• Subjects: Animalia; Behaviour; Chordata; Coast and continental shelf; Containers and aquaria 20-1000 L or < 1 m**2; Laboratory experiment; Nekton; Pelagos; Pomacentrus amboinensis; Pomacentrus nagasakiensis; Respiration; South Pacific; Species interaction; Temperature; Tropical; Species; Figure; Treatment; Predation rate; Predation rate, standard error; Prey selectivity index; Prey selectivity index, standard error; Respiration rate, oxygen; Respiration rate, oxygen, standard error; Temperature, water; Temperature, water, standard error; Salinity; pH; pH, standard error; Alkalinity, total; Alkalinity, total, standard error; Partial pressure of carbon dioxide water at sea surface temperature wet air; Partial pressure of carbon dioxide water at sea surface temperature wet air, standard error; Carbonate system computation flag; Carbon dioxide; Fugacity of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Carbonate ion; Carbon, inorganic, dissolved; Aragonite saturation state; Calcite saturation state; Potentiometric; Potentiometric titration; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. 2010; Ocean Acidification International Coordination Centre OA-ICC; Pacific; McCormick; Chivers; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.848122; https://doi.pangaea.de/10.1594/PANGAEA.848122

Ocean warming and acidification are serious threats to marine life. While each stressor alone has been studied in detail, their combined effects on the outcome of ecological interactions are poorly understood. We measured predation rates and predator selectivity of two closely related species of damselfish exposed to a predatory dottyback. We found temperature and CO2 interacted synergistically on overall predation rate, but antagonistically on predator selectivity. Notably, elevated CO2 or temperature alone reversed predator selectivity, but the interaction between the two stressors cancelled selectivity. Routine metabolic rates of the two prey showed strong species differences in tolerance to CO2 and not temperature, but these differences did not correlate with recorded mortality. This highlights the difficulty of linking species-level physiological tolerance to resulting ecological outcomes. This study is the first to document both synergistic and antagonistic effects of elevated CO2 and temperature on a crucial ecological process like predator-prey dynamics. : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2015) 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 is 2015-07-09.