Seawater carbonate chemistry and survival of herring larvae, Clupea harengus L., under projected end-of-the-century CO2-levels ...

• Main Authors: Sswat, Michael, Stiasny, Martina H, Taucher, Jan, Algueró-Muñiz, Maria, Bach, Lennart Thomas, Jutfelt, Fredrik, Riebesell, Ulf, Clemmesen, Catriona
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: Animalia; Chordata; Clupea harengus; Coast and continental shelf; Community composition and diversity; Entire community; Field experiment; Mesocosm or benthocosm; Mortality/Survival; Nekton; North Atlantic; Other; Pelagos; Single species; Temperate; Event label; Type of study; DATE/TIME; Day of experiment; Time in days; Mesocosm label; Treatment; Chlorophyll a; Nauplii; Copepodites; Guinardia stolterfothii; Particle concentration; Survival; Clupea harengus, larvae; Status; Temperature, water; Salinity; Carbon, inorganic, dissolved; pH; Partial pressure of carbon dioxide water at sea surface temperature wet air; Phosphate; Silicate; Carbonate system computation flag; Carbon dioxide; Fugacity of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Carbonate ion; Alkalinity, total; Aragonite saturation state; Calcite saturation state; Mesocosm experiment; Hand-operated CTD Sea&Sun Technology, CTD 60M; Coulometric titration; Spectrophotometric; Calculated; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.959519; https://doi.pangaea.de/10.1594/PANGAEA.959519

Ocean acidification—the decrease in seawater pH due to rising CO2 concentrations—has been shown to lower survival in early life stages of fish and, as a consequence, the recruitment of populations including commercially important species. To date, ocean-acidification studies with fish larvae have focused on the direct physiological impacts of elevated CO2 , but largely ignored the potential effects of ocean acidification on food web interactions. In an in situ mesocosm study on Atlantic herring (Clupea harengus) larvae as top predators in a pelagic food web, we account for indirect CO2 effects on larval survival mediated by changes in food availability. The community was exposed to projected end-of-the-century CO2 conditions (~760 µatm pCO2 ) over a period of 113 days. In contrast with laboratory studies that reported a decrease in fish survival, the survival of the herring larvae in situ was significantly enhanced by 19 ± 2%. Analysis of the plankton community dynamics suggested that the herring larvae ... : 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 2023-05-29. ...