Seawater carbonate chemistry and impact of climate change on direct and indirect species interactions ...

• Main Authors: Lord, Joshua P, Barry, J P, Graves, Dale
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: Animalia; Arthropoda; Behaviour; Benthic animals; Benthos; Bottles or small containers/Aquaria <20 L; Coast and continental shelf; Growth/Morphology; Haliotis rufescens; Laboratory experiment; Mollusca; Mortality/Survival; North Pacific; Nucella ostrina; Other; Pachygrapsus crassipes; Species interaction; Temperate; Temperature; Type of study; Species, unique identification; Species, unique identification URI; Species, unique identification Semantic URI; Figure; Treatment; Feeding rate; Feeding rate, standard error; Mortality; Tissue growth; Tissue growth, standard error; Shell growth; Shell growth, standard error; Reduction; Ratio; Ratio, standard error; Salinity; Temperature, water; pH; Alkalinity, total; Carbon, inorganic, dissolved; Partial pressure of carbon dioxide water at sea surface temperature wet air; Calcite saturation state; Aragonite saturation state; Carbonate system computation flag; Carbon dioxide; Fugacity of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Carbonate ion; Potentiometric; Potentiometric titration; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.958560; https://doi.pangaea.de/10.1594/PANGAEA.958560

Recent marine climate change research has largely focused on the response of individual species to environmental changes including warming and acidification. The response of communities, driven by the direct effects of ocean change on individual species as well the cascade of indirect effects, has received far less study. We used several rocky intertidal species including crabs, whelks, juvenile abalone, and mussels to determine how feeding, growth, and interactions between species could be shifted by changing ocean conditions. Our 10 wk experiment revealed many complex outcomes which highlight the unpredictability of community-level responses. Contrary to our predictions, the largest impact of elevated CO2 was reduced crab feeding and survival, with a pH drop of 0.3 units. Surprisingly, whelks showed no response to higher temperatures or CO2 levels, while abalone shells grew 40% less under high CO2 conditions. Massive non-consumptive effects of crabs on whelks showed how important indirect effects can be in ... : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2022) 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 2023-05-08. ...