Seawater carbonate chemistry and copepod Centropages tenuiremis feeding, filtering and respiration rate during experiments, 2012, supplement to: Li, Wei; Gao, Kunshan (2012): A marine secondary producer respires and feeds more in a high CO2 ocean. Marine Pollution Bulletin, 64(4), 699-703

• Main Authors: Li, Wei, Gao, Kunshan
• Format: Dataset
• Language: English
• Published: PANGAEA - Data Publisher for Earth & Environmental Science 2012
• Subjects: Animalia; Arthropoda; Behaviour; Bottles or small containers/Aquaria <20 L; Centropages tenuiremis; Coast and continental shelf; Laboratory experiment; North Pacific; Pelagos; Respiration; Single species; Temperate; Zooplankton; Experimental treatment; Identification; Species; Respiration rate, oxygen, per individual; Respiration rate, standard deviation; Filtering rate; Filtering rate, standard deviation; Feeding rate of cells per individuum; Feeding rate, standard deviation; Salinity; Temperature, water; Phosphate; Silicate; Partial pressure of carbon dioxide water at sea surface temperature wet air; Carbon dioxide, partial pressure, standard deviation; pH; pH, standard deviation; Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Bicarbonate ion; Bicarbonate ion, standard deviation; Carbonate ion; Carbonate ion, standard deviation; Carbon dioxide; Carbon dioxide, standard deviation; Alkalinity, total; Alkalinity, total, standard deviation; Carbonate system computation flag; Fugacity of carbon dioxide water at sea surface temperature wet air; Aragonite saturation state; Calcite saturation state; Clark type oxygen electrode 5300A, YSI; see references; Measured; pH meter Mettler Toledo, USA; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. 2010; European network of excellence for Ocean Ecosystems Analysis EUR-OCEANS; European Project on Ocean Acidification EPOCA; Ocean Acidification International Coordination Centre OA-ICC; Pacific; Toledo; Ocean acidification; Copepods
• Online Access: https://dx.doi.org/10.1594/pangaea.778197; https://doi.pangaea.de/10.1594/PANGAEA.778197

Climate change mediates marine chemical and physical environments and therefore influences marine organisms. While increasing atmospheric CO2 level and associated ocean acidification has been predicted to stimulate marine primary productivity and may affect community structure, the processes that impact food chain and biological CO2 pump are less documented. We hypothesized that copepods, as the secondary marine producer, may respond to future changes in seawater carbonate chemistry associated with ocean acidification due to increasing atmospheric CO2 concentration. Here, we show that the copepod, Centropages tenuiremis, was able to perceive the chemical changes in seawater induced under elevated CO2 concentration (>1700 µatm, pH < 7.60) with avoidance strategy. The copepod's respiration increased at the elevated CO2 (1000 µatm), associated acidity (pH 7.83) and its feeding rates also increased correspondingly, except for the initial acclimating period, when it fed less. Our results imply that marine secondary producers increase their respiration and feeding rate in response to ocean acidification to balance the energy cost against increased acidity and CO2 concentration. : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Lavigne and Gattuso, 2011) 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).