Seawater carbonate chemistry and common sea star (Asterias rubens) coelomic fluid changes ...

• Main Authors: Wahltinez, Sarah J, Kroll, Kevin J, Behringer, Donald C, Arnold, Jill E, Whitaker, Brent, Newton, Alisa L, Edmiston, Kristina, Hewson, Ian, Stacy, Nicole I
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: Acid-base regulation; Animalia; Asterias rubens; Benthic animals; Benthos; Biomass/Abundance/Elemental composition; Containers and aquaria 20-1000 L or < 1 m**2; Echinodermata; Laboratory experiment; Laboratory strains; Not applicable; Other studied parameter or process; Oxygen; Single species; Temperature; Type of study; Species, unique identification; Species, unique identification URI; Species, unique identification Semantic URI; Treatment; Time point, descriptive; Coelomic fluid, pH; Coelomic fluid, pH, standard deviation; Coelomic fluid, partial pressure of carbon dioxide; Coelomic fluid, partial pressure of carbon dioxide, standard deviation; Coelomic fluid, partial pressure of oxygen; Coelomic fluid, partial pressure of oxygen, standard deviation; Coelomic fluid, bicarbonate ion; Coelomic fluid, bicarbonate ion, standard deviation; Type; Magnesium; Magnesium, standard deviation; Sodium; Sodium, standard deviation; Potassium; Potassium, standard deviation; Chloride; Chloride, standard deviation; Calcium; Calcium, standard deviation; Osmolality; Osmolality, standard deviation; Total coelomocyte count; Total coelomocyte count, standard deviation; Salinity; Temperature, water; pH; pH, standard deviation; Alkalinity, total; Alkalinity, total, standard deviation; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.957783; https://doi.pangaea.de/10.1594/PANGAEA.957783

Common sea stars (Asterias rubens) are at risk of physiological stress and decline with projected shifts in oceanic conditions. This study assessed changes in coelomic fluid (CF) blood gases, electrolytes, osmolality, and coelomocyte counts in adult common sea stars after exposure to stressors mimicking effects from climate change for 14 days, including decreased pH (−0.4 units, mean: 7.37), hypoxia (target dissolved oxygen ~1.75 mg O2/L, mean: 1.80 mg O2/L), or increased temperature (+10 °C, mean: 17.2 °C) and compared sea star CF electrolytes and osmolality to tank water. Changes in CF blood gases, electrolytes, and/or coelomocyte counts occurred in all treatment groups after stressor exposures, indicating adverse systemic effects with evidence of increased energy expenditure, respiratory or metabolic derangements, and immunosuppression or inflammation. At baseline, CF potassium and osmolality of all groups combined were significantly higher than tank water, and, after exposures, CF potassium was ... : 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 2023-04-20. ...