Publication Date:
2024-03-15
Description:
As the world's oceans continue to absorb anthropogenic CO2 from the atmosphere, the carbonate chemistry of seawater will change. This process, termed ocean acidification, may affect the physiology of marine organisms. Arctic seas are expected to experience the greatest decreases in pH in the future, as changing sea ice dynamics and naturally cold, brackish water, will accelerate ocean acidification. In this study, we investigated the effect of increased pCO2 on the early developmental stages of the key Arctic copepod Calanus glacialis. Eggs from wild-caught C. glacialis females from Svalbard, Norway (80°N), were cultured for 2 months to copepodite stage C1 in 2°C seawater under four pCO2 treatments (320, 530, 800, and 1700 matm). Developmental rate, dry weight, and carbon and nitrogen mass were measured every other day throughout the experiment, and oxygen consumption rate was measured at stages N3, N6, and C1. All endpoints were unaffected by pCO2 levels projected for the year 2300. These results indicate that naupliar development in wild populations of C. glacialis is unlikely to be detrimentally affected in a future high CO2 ocean.
Keywords:
Alkalinity, total; Alkalinity, total, standard error; Animalia; Aragonite saturation state; Arctic; Arthropoda; Bicarbonate ion; Bicarbonate ion, standard error; Biomass/Abundance/Elemental composition; Calanus glacialis; Calcite saturation state; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbon/Nitrogen ratio; Carbon/Nitrogen ratio, standard error; Carbonate ion; Carbonate ion, standard error; Carbonate system computation flag; Carbon content per individual; Carbon content per individual, standard error; Carbon dioxide; Carbon dioxide, standard error; Coast and continental shelf; Containers and aquaria (20-1000 L or 〈 1 m**2); Development; Dry mass; Dry mass, standard error; Duration, number of days; Duration, number of days, standard error; EXP; Experiment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Laboratory experiment; Median development time; Median development time, standard error; Nitrate; Nitrate, standard error; Nitrite; Nitrite, standard error; Nitrogen content per individual; Nitrogen content per individual, standard error; OA-ICC; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Partial pressure of carbon dioxide (water) at sea surface temperature (wet air), standard error; Pelagos; pH; pH, standard error; Phosphate; Phosphate, standard error; Polar; Potentiometric titration; Registration number of species; Replicates; Respiration; Respiration rate, oxygen; Respiration rate, oxygen, per individual; Respiration rate, oxygen, standard error; Rijpfjorden_OA; Salinity; Salinity, standard error; Silicate; Silicate, standard error; Single species; Species; Spectrophotometric; Stage; Temperature, water; Treatment; Type; Uniform resource locator/link to reference; Zooplankton
Type:
Dataset
Format:
text/tab-separated-values, 1332 data points
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