Seawater carbonate chemistry and hatch size and larval growth of walleye pollock (Theragra chalcogramma) ...

• Main Authors: Hurst, Thomas P, Fernandez, Elena R, Mathis, Jeremy T
• Format: Dataset
• Language: English
• Published: PANGAEA 2013
• Subjects: Animalia; Chordata; Coast and continental shelf; Containers and aquaria 20-1000 L or < 1 m**2; Growth/Morphology; Laboratory experiment; Nekton; North Pacific; Pelagos; Reproduction; FOS Medical biotechnology; Single species; Temperate; Theragra chalcogramma; Type; Species, unique identification; Species, unique identification URI; Species, unique identification Semantic URI; Stage; Identification; Treatment; Date; Carbon, inorganic, dissolved; Alkalinity, total; pH; Partial pressure of carbon dioxide water at sea surface temperature wet air; Calcite saturation state; Aragonite saturation state; Time in days; Replicate; Length, standard; Length, standard error; Height; Height, standard error; Diameter; Diameter, standard error; Yolk area; Yolk area, standard error; Condition index; Condition index, standard error; Number; Hatching time; Hatching time, standard error; Temperature, water; Temperature, water, standard deviation; Salinity; Carbon, inorganic, dissolved, standard deviation; Alkalinity, total, standard deviation; pH, standard deviation; Partial pressure of carbon dioxide, standard deviation; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.955727; https://doi.pangaea.de/10.1594/PANGAEA.955727

Rising atmospheric concentrations of CO2 are predicted to decrease the pH of high-latitude oceans by 0.3–0.5 units by 2100. Because of their limited capacity for ion exchange, embryos and larvae of marine fishes are predicted to be more sensitive to elevated CO2 than juveniles and adults. Eggs and larvae of walleye pollock (Theragra chalcogramma) were incubated across a broad range of CO2 levels (280–2100 µatm) to evaluate sensitivity in this critical resource species. Slightly elevated CO2 levels (450 µatm) resulted in earlier hatching times, but differences among egg batches were greater than those observed across CO2 treatments. Egg batches differed significantly in size-at-hatch metrics, but we observed no consistent effect of CO2 level. In three independent experiments, walleye pollock were reared at ambient and elevated CO2 levels through the early larval stage (to 30 days post-hatch). Across trials, there were only minor effects of CO2 level on size and growth rate, but fish in the ambient treatments ... : 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 2023-02-10. ...