Seawater carbonate chemistry and cardiorespiratory physiology of juvenile Antarctic rockcod (Trematomus bernacchii) ...

• Main Authors: Davis, Brittany E, Miller, Nathan A, Flynn, Erin E, Todgham, Anne E
• Format: Dataset
• Language: English
• Published: PANGAEA 2016
• Subjects: Animalia; Antarctic; Behaviour; Bottles or small containers/Aquaria <20 L; Chordata; Coast and continental shelf; Growth/Morphology; Laboratory experiment; Nekton; Other studied parameter or process; Pelagos; Polar; Respiration; Single species; Trematomus bernacchii; Type; Species; Registration number of species; Uniform resource locator/link to reference; Day of experiment; Treatment; Identification; Replicate; Heart rate; Heart rate, standard error; Ventilation rate; Ventilation rate, standard error; File name; Stroke volume; Cardiac output; Fish, standard length; Mass; Mass specific stroke volume; Mass specific cardiac output; Fulton's condition factor; Fulton's condition factor, standard deviation; Fulton's condition factor, standard error; Fish, standard length, standard deviation; Fish, standard length, standard error; Mass, standard deviation; Mass, standard error; Respiration rate, oxygen; Citrate synthase activity, per protein mass; Citrate synthase activity per fresh mass; Temperature, water; Temperature, water, standard deviation; Salinity; Salinity, standard deviation; pH; pH, standard deviation; Antarc*; Antarctica; Ocean acidification; Ross Sea
• Online Access: https://dx.doi.org/10.1594/pangaea.939685; https://doi.pangaea.de/10.1594/PANGAEA.939685

To date, numerous studies have shown negative impacts of CO2-acidified seawater (i.e. ocean acidification, OA) on marine organisms including calcifying invertebrates and fishes; however, limited research has been conducted on the physiological effects of OA on polar fishes and even less on the impacts of OA on early developmental stages of polar fishes. We evaluated aspects of aerobic metabolism and cardiorespiratory physiology of juvenile emerald rockcod Trematomus bernacchii, an abundant fish in the Ross Sea, Antarctica, to elevated partial pressure of carbon dioxide (pCO2) (420 [Ambient], 650 [Moderate] and 1050 [High] μtam pCO2) over a one-month period. We examined cardiorespiratory physiology including heart rate, stroke volume, cardiac output and ventilation, whole organism metabolism via oxygen consumption rate, and sub-organismal aerobic capacity by citrate synthase enzyme activity. Juvenile fish showed an increase in ventilation rate under High pCO2 compared to Ambient pCO2, while cardiac ... : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2021) 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 2021-12-20. ...