Parental exposure to elevated pCO2 influences the reproductive success of copepods ...

• Main Authors: Cripps, Gemma, Lindeque, Penelope K, Flynn, Kevin J
• Format: Dataset
• Language: English
• Published: PANGAEA 2014
• Subjects: Acartia tonsa; Animalia; Arthropoda; Bottles or small containers/Aquaria <20 L; Laboratory experiment; Laboratory strains; North Atlantic; Pelagos; Reproduction; FOS Medical biotechnology; Single species; Zooplankton; Species; Figure; Treatment; Replicate; Partial pressure of carbon dioxide water at sea surface temperature wet air; Egg production rate per female; Hatching rate; Egg volume; Nauplii recruitment per female; Nauplii recruitment per female, normalized; pH; pH, standard deviation; Alkalinity, total; Alkalinity, total, standard deviation; Partial pressure of carbon dioxide, standard deviation; Temperature, water; Temperature, water, standard deviation; Salinity; Salinity, standard deviation; Carbonate system computation flag; Carbon dioxide; Fugacity of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Carbonate ion; Carbon, inorganic, dissolved; Aragonite saturation state; Calcite saturation state; Potentiometric; Potentiometric titration; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. 2010; Ocean Acidification International Coordination Centre OA-ICC; Ocean acidification; Copepods
• Online Access: https://dx.doi.org/10.1594/pangaea.836732; https://doi.pangaea.de/10.1594/PANGAEA.836732

Substantial variations are reported for egg production and hatching rates of copepods exposed to elevated carbon dioxide concentrations (pCO2). One possible explanation, as found in other marine taxa, is that prior parental exposure to elevated pCO2 (and/or decreased pH) affects reproductive performance. Previous studies have adopted two distinct approaches, either (1) expose male and female copepoda to the test pCO2/pH scenarios, or (2) solely expose egg-laying females to the tests. Although the former approach is more realistic, the majority of studies have used the latter approach. Here, we investigated the variation in egg production and hatching success of Acartia tonsa between these two experimental designs, across five different pCO2 concentrations (385-6000 µatm pCO2). In addition, to determine the effect of pCO2 on the hatching success with no prior parental exposure, eggs produced and fertilized under ambient conditions were also exposed to these pCO2 scenarios. Significant variations were found ... : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Lavigne et al, 2014) 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 is 2014-10-13. ...