PANGAEA_825021 Seawater carbonate chemistry and egg production, hatching and metabolic rates of a Mediterranean copepod species (Acartia clausi) in a laboratory experiment Zervoudaki, Soultana; Frangoulis, Constantin; Giannoudi, Louisa; Krasakopoulou, Evangelia Seawater carbonate chemistry and egg production, hatching and metabolic rates of a Mediterranean copepod species (Acartia clausi) in a laboratory experiment 2014-01-11 PANGAEA Dataset Supplement to: Zervoudaki, Soultana; Frangoulis, Constantin; Giannoudi, Louisa; Krasakopoulou, Evangelia (2014): Effects of low pH and raised temperature on egg production, hatching and metabolic rates of a Mediterranean copepod species (Acartia clausi) under oligotrophic conditions. Mediterranean Marine Science, 15, 74-83, https://doi.org/10.12681/mms.553 https://doi.pangaea.de/10.1594/PANGAEA.825021 Investigator Soultana Zervoudaki tanya@ath.hcmr.gr Investigator Evangelia Krasakopoulou ekras@marine.aegean.gr Investigator Louisa Giannoudi lgiannoudi@hcmr.gr Investigator Constantin Frangoulis cfrangoulis@hcmr.gr Investigator Yan Yang yangyan@xmu.edu.cn Earth Science Treatment Identification Species Temperature, water Salinity Light:Dark cycle pH, total scale Carbon, inorganic, dissolved Carbon, inorganic, dissolved, standard deviation Ammonia excretion per individual Ammonium, excretion, standard deviation Respiration rate, oxygen, per individual Respiration rate, oxygen, standard deviation Egg production rate per female Egg production rate, standard deviation Hatching rate Hatching rate, standard deviation Carbon dioxide Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) Bicarbonate ion Carbonate ion Alkalinity, total Carbonate system computation flag Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Aragonite saturation state Calcite saturation state geoscientificInformation Acartia clausi Animalia Arthropoda Bottles or small containers/Aquaria (<20 L) Coast and continental shelf Mediterranean Sea Ocean acidification Other metabolic rates Pelagos Reproduction Respiration Single species Temperate Temperature Zooplankton Potentiometric Coulometric titration Calculated using seacarb Calculated using seacarb after Nisumaa et al. (2010) Complete MedSeA Mediterranean Sea Acidification in a Changing Climate OA-ICC Ocean Acidification International Coordination Centre unrestricted CC-BY-3.0: Creative Commons Attribution 3.0 Unported English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

Leobener Str.

Bremen Bremen 28359 Germany online 862 data points text/tab-separated-values Lavigne, Héloïse; Gattuso, Jean-Pierre (2011): seacarb: seawater carbonate chemistry with R. R package version 2.4 [webpage]. https://cran.r-project.org/package=seacarb

This study includes the first information on the combined effect of low pH and raised temperature on egg production rate (EP), hatching success (HS), excretion and respiration of the Mediterranean copepod Acartia clausi. Adult individuals of A. clausi and fresh surface seawater were collected at a coastal station in Saronikos Gulf during April 2012. Four different conditions were applied: two different pH levels (present: 8.09 and future: 7.83) at two temperature values (present: 16°C and present+4 °C= 20°C). EP and HS success decreased significantly over the duration of exposure at future pH at both temperature conditions. However, the analysis of the combined effect of pH, T, chlorophyll a and the duration of the experiments on EP and HS revealed that ocean acidification had no discernible effect, whereas warming; food and the duration of exposure were more significant for the reproductive output of A. clausi. Temperature appeared to have a positive effect on respiration and excretion. Acidification had no clear effect on respiration, but a negative effect on the A. clausi excretion was observed. Acidification and warming resulted in the increase of the excretion rate and the increase was higher than that observed by warming only. Our findings showed that a direct effect of ocean acidification on copepod's vital rates was not obvious, except maybe in the case of excretion. Therefore, the combination of acidification with the ambient oligotrophic conditions and the warming could result in species being less able to allocate resources for coping with multiple stressors. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.825021"! ** 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). The date of carbonate chemistry calculation by seacarb is 2013-12-18.

http://medsea-project.eu/ MedSeA http://mel.xmu.edu.cn/en/ https://cran.r-project.org/package=seacarb seacarb: seawater carbonate chemistry with R. R package version 2.4 https://doi.org/10.1242/%E2%80%8Bjeb.01308 Ammonia excretion per individual https://doi.org/10.12681/mms.553 Effects of low pH and raised temperature on egg production, hatching and metabolic rates of a Mediterranean copepod species (Acartia clausi) under oligotrophic conditions https://doi.org/10.5194/essd-2-167-2010 Calculated using seacarb after Nisumaa et al. (2010) https://en.wikipedia.org/wiki/Species Species https://www.iaea.org/services/oa-icc/science-and-collaboration/data-access-and-management OA-ICC DIF 9.4 2014-01-11 2026-06-27