Seawater carbonate chemistry and processes during experiments with crabs Chionoecetes tanneri and Cancer magister, 2007 ...

• Main Authors: Pane, Eric F, Barry, J P
• Format: Dataset
• Language: English
• Published: PANGAEA 2007
• Subjects: Acid-base regulation; Animalia; Arthropoda; Benthic animals; Benthos; Cancer magister; Chionoecetes tanneri; Coast and continental shelf; Containers and aquaria 20-1000 L or < 1 m**2; Deep-sea; Laboratory experiment; North Pacific; Single species; Temperate; Experimental treatment; Species; Time in minutes; Temperature, water; Salinity; Carbonate system computation flag; pH; Alkalinity, total; Carbon, inorganic, dissolved; Carbon dioxide; Bicarbonate ion; Carbonate ion; Partial pressure of carbon dioxide water at sea surface temperature wet air; Fugacity of carbon dioxide water at sea surface temperature wet air; Aragonite saturation state; Calcite saturation state; Carbon dioxide solubility; Apparent pK; Haemolymph, carbon dioxide tension; Experiment; Calculated using seacarb after Nisumaa et al. 2010; pH, Electrode; Calculated using CO2SYS; Infrared gas analyzer, IRGA Li-Cor1 6262; Calculated; European network of excellence for Ocean Ecosystems Analysis EUR-OCEANS; European Project on Ocean Acidification EPOCA; Ocean Acidification International Coordination Centre OA-ICC; Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158; Antarctic; Arctic; Pacific; Antarc*; Ocean acidification; Sea ice; Tanner crab
• Online Access: https://dx.doi.org/10.1594/pangaea.721883; https://doi.pangaea.de/10.1594/PANGAEA.721883

Rising levels of atmospheric carbon dioxide could be curbed by large-scale sequestration of CO2 in the deep sea. Such a solution requires prior assessment of the impact of hypercapnic, acidic seawater on deep-sea fauna. Laboratory studies were conducted to assess the short-term hypercapnic tolerance of the deep-sea Tanner crab Chionoecetes tanneri, collected from 1000 m depth in Monterey Canyon off the coast of central California, USA. Hemolymph acid- base parameters were monitored over 24 h of exposure to seawater equilibrated with ~1% CO2 (seawater PCO2 ~6 torr or 0.8 kPa, pH 7.1), and compared with those of the shallow-living Dungeness crab Cancer magister. Short-term hypercapnia-induced acidosis in the hemolymph of Chionoecetes tanneri was almost uncompensated, with a net 24 h pH reduction of 0.32 units and a net bicarbonate accumulation of only 3 mM. Under simultaneous hypercapnia and hypoxia, short-term extracellular acidosis in Chionoecetes tanneri was completely uncompensated. In contrast, Cancer ... : 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). ...