Seawater carbonate chemistry and behaviour, physiological metrics in blacktip reef shark (Carcharhinus melanopterus) ...

• Main Authors: Bouyoucos, Ian A, Watson, Sue-Ann, Planes, Serge, Simpfendorfer, Colin A, Schwieterman, Gail D, Whitney, Nicholas M, Rummer, Jodie L
• Format: Dataset
• Language: English
• Published: PANGAEA 2020
• Subjects: Animalia; Behaviour; Carcharhinus melanopterus; Chordata; Coast and continental shelf; Laboratory experiment; Mesocosm or benthocosm; Nekton; Pelagos; Respiration; Single species; South Pacific; Temperature; Tropical; Type; Species; Registration number of species; Uniform resource locator/link to reference; Identification; Treatment; Group; Overall dynamic body acceleration; Blood, ph; Lactate; Haematocrit; Haemoglobin; Mean corpuscular haemoglobin concentration; Hypoxia tolerance; Lateralization; Mass; Oxygen uptake rate; Absolute aerobic scope; Factorial aerobic scope; Excess post-exercise oxygen consumption; Recovery time; Temperature, water; Temperature, water, standard deviation; pH; pH, standard deviation; Salinity; Salinity, standard deviation; Alkalinity, total; Alkalinity, total, standard deviation; Partial pressure of carbon dioxide water at sea surface temperature wet air; Partial pressure of carbon dioxide, standard deviation; Carbonate system computation flag; Carbon dioxide; Fugacity of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Carbonate ion; Pacific; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.929942; https://doi.pangaea.de/10.1594/PANGAEA.929942

Ocean warming and acidification act concurrently on marine ectotherms with the potential for detrimental, synergistic effects; yet, effects of these stressors remain understudied in large predatory fishes, including sharks. We tested for behavioural and physiological responses of blacktip reef shark (Carcharhinus melanopterus) neonates to climate change relevant changes in temperature (28 and 31 °C) and carbon dioxide partial pressures (pCO2; 650 and 1050 µatm) using a fully factorial design. Behavioural assays (lateralisation, activity level) were conducted upon 7–13 days of acclimation, and physiological assays (hypoxia tolerance, oxygen uptake rates, acid–base and haematological status) were conducted upon 14–17 days of acclimation. Haematocrit was higher in sharks acclimated to 31 °C than to 28 °C. Significant treatment effects were also detected for blood lactate and minimum oxygen uptake rate; although, these observations were not supported by adequate statistical power. Inter-individual variability ... : 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 2021-03-30. ...