Seawater carbonate chemistry and mussel respiration and calcification rates

• Main Authors: Ninokawa, Aaron, Takeshita, Yuichiro, Jellison, Brittany M, Jurgens, Laura J, Gaylord, B
• Format: Dataset
• Language: English
• Published: PANGAEA - Data Publisher for Earth & Environmental Science 2020
• Subjects: Animalia; Benthic animals; Benthos; Brackish waters; Calcification/Dissolution; Laboratory experiment; Mesocosm or benthocosm; Mollusca; Mytilus californianus; North Pacific; Respiration; Single species; Temperate; Type; Species; Registration number of species; Uniform resource locator/link to reference; Profile; DATE/TIME; Flow velocity, water; Location; Temperature, water; Salinity; pH; Oxygen; Alkalinity, total; Bicarbonate ion; Calcite saturation state; Partial pressure of carbon dioxide water at sea surface temperature wet air; Calcification rate of calcium carbonate; Respiration rate, oxygen; Maximal differences in pH; Difference; Carbonate system computation flag; Carbon dioxide; Fugacity of carbon dioxide water at sea surface temperature wet air; Carbonate ion; Carbon, inorganic, dissolved; Aragonite saturation state; Experiment; Calculated using seacarb after Nisumaa et al. 2010; Ocean Acidification International Coordination Centre OA-ICC; Pacific; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.915978; https://doi.pangaea.de/10.1594/PANGAEA.915978

Marine habitat‐forming species often play critical roles on rocky shores by ameliorating stressful conditions for associated organisms. Such ecosystem engineers provide structure and shelter, for example, by creating refuges from thermal and desiccation stresses at low tide. Less explored is the potential for habitat formers to alter interstitial seawater chemistry during their submergence. Here, we quantify the capacity for dense assemblages of the California mussel, Mytilus californianus, to change seawater chemistry (dissolved O2, pH, and total alkalinity) within the interiors of mussel beds at high tide via respiration and calcification. We established a living mussel bed within a laboratory flow tank and measured vertical pH and oxygen gradients within and above the mussel bed over a range of water velocities. We documented decreases of up to 0.1 pH and 25 μmol O2/kg internal to the bed, along with declines of 100 μmol/kg in alkalinity, when external flows were 95% of the time. Reductions in pH and O2 inside mussel beds may negatively impact resident organisms and exacerbate parallel human‐induced perturbations to ocean chemistry while potentially selecting for improved tolerance to altered chemistry conditions. : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2019) 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 2020-05-6.