Seawater carbonate chemistry and egg production and hatching success of copepod Acartia tonsa ...

• Main Authors: Dam, H G, deMayo, James A, Park, Gihong, Norton, Lydia, He, Xuejia, Finiguerra, Michael B, Baumann, Hannes, Brennan, Reid S, Pespeni, Melissa H
• Format: Dataset
• Language: English
• Published: PANGAEA 2021
• Subjects: Acartia tonsa; Animalia; Arthropoda; Bottles or small containers/Aquaria <20 L; Coast and continental shelf; Growth/Morphology; Laboratory experiment; North Atlantic; Pelagos; Reproduction; FOS Medical biotechnology; Single species; Temperate; Temperature; Zooplankton; Type; Species; Registration number of species; Uniform resource locator/link to reference; Figure; Generation; Replicate; Treatment; Eggs, hatched; Eggs, unhatched; Eggs; Egg production rate per female; Egg hatching success; Identification; Proportion of survival; Fitness; Salinity; Alkalinity, total; Temperature, water; pH; Carbonate system computation flag; Carbon dioxide; Fugacity of carbon dioxide water at sea surface temperature wet air; Partial pressure of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Carbonate ion; Carbon, inorganic, dissolved; Aragonite saturation state; Calcite saturation state; Calculated using seacarb after Nisumaa et al. 2010; Ocean Acidification International Coordination Centre OA-ICC; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.943059; https://doi.pangaea.de/10.1594/PANGAEA.943059

Predicting the response of marine animals to climate change is hampered by a lack of multigenerational studies on evolutionary adaptation, particularly to combined ocean warming and acidification (OWA). We provide evidence for rapid adaptation to OWA in the foundational copepod species, Acartia tonsa, by assessing changes in population fitness on the basis of a comprehensive suite of life-history traits, using an orthogonal experimental design of nominal temperature (18 °C, 22 °C) and pCO2 (400, 2,000 µatm) for 25 generations (1 year). Egg production and hatching success initially decreased under OWA, resulting in a 56% reduction in fitness. However, both traits recovered by the third generation, and average fitness was reduced thereafter by only 9%. Antagonistic interactions between warming and acidification in later generations decreased survival, thereby limiting full fitness recovery. Our results suggest that such interactions constrain evolutionary rescue and add complexity to predictions of the ... : 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 2022-04-06. ...