Antioxidant response of the hard shelled mussel Mytilus coruscus exposed to reduced pH and oxygen concentration ...

• Main Authors: Sui, Yanming, Hu, Menghong, Shang, Yueyong, Wu, Fangli, Huang, Xizhi, Dupont, Sam, Storch, Daniela, Pörtner, Hans-Otto, Li, Jiale, Lu, Weiqun, Wang, Youji
• Format: Dataset
• Language: English
• Published: PANGAEA 2017
• Subjects: Animalia; Benthic animals; Benthos; Brackish waters; Containers and aquaria 20-1000 L or < 1 m**2; Laboratory experiment; Mollusca; Mytilus coruscus; North Pacific; Other metabolic rates; Oxygen; Single species; Temperate; Type; Species; Registration number of species; Uniform resource locator/link to reference; Site; Time in hours; Treatment; Superoxide dismutase activity, unit per protein mass; Catalase, unit per protein mass; Glutathione peroxidase activity, unit per protein mass; Acid phosphatase activity, unit per protein mass; Alkaline phosphatase activity, unit per protein mass; Oxygen, standard deviation; Temperature, water; Temperature, water, standard deviation; Salinity; Salinity, standard deviation; pH; pH, standard deviation; Alkalinity, total; Alkalinity, total, standard deviation; Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Partial pressure of carbon dioxide water at sea surface temperature wet air; Partial pressure of carbon dioxide, standard deviation; Calcite saturation state; Calcite saturation state, standard deviation; Aragonite saturation state; Aragonite saturation state, standard deviation; Carbonate system computation flag; Carbon dioxide; Fugacity of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Carbonate ion; Experiment; Potentiometric; Pacific; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.873540; https://doi.pangaea.de/10.1594/PANGAEA.873540

Ocean acidification (OA) and hypoxic events are increasing worldwide problems, their interactive effects have not been well clarified, although their co-occurrence is prevalent. The East China Sea (the Yangtze River estuary area) suffers from not only coastal hypoxia but also pH fluctuation, representing an ideal study site to explore the combined effect of OA and hypoxia on marine bivalves. We experimentally evaluated the antioxidant response of the mussel Mytilus coruscus exposed to three pH levels (8.1, 7.7 and 7.3) at two dissolved oxygen (DO) levels (2.0 mg/L and 6.0 mg/L) for 72h. Activities of superoxide dismutase, catalase, glutathione peroxidase, acid phosphatase, and alkaline phosphatase and levels of malondialdehyde were measured in gills and hemolymph. All enzymatic activities in hemolymph and gills followed a similar pattern throughout the experiment duration. Generally, low DO showed greater effects on enzyme activities than elevated CO2. Significant interactions between DO, pH and time were ... : 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 is 2017-03-15. ...