Seawater carbonate chemistry and respiration, clearance and calcification rates of the common cockle Cerastoderma edule


The combined effect of ocean acidification and warming on the common cockle Cerastoderma edule was investigated in a fully crossed laboratory experiment. Survival of the examined adult organisms remained high and was not affected by elevated temperature (+3 °C) or lowered pH (-0.3 units). However, the morphometric condition index of the cockles incubated under high pCO2 conditions (i.e. combined warming and acidification) was significantly reduced after six weeks of incubation. Respiration rates increased significantly under low pH, with highest rates measured under combined warm and low pH conditions. Calcification decreased significantly under low pH while clearance rates increased significantly under warm conditions and were generally lower in low pH treatments. The observed physiological responses suggest that the reduced food intake under hypercapnia is insufficient to support the higher energy requirements to compensate for the higher costs for basal maintenance and growth in future high pCO2waters.

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 2022-10-18.

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Metadata Access
Creator Ong, Ee Zin ORCID logo; Briffa, Mark ORCID logo; Moens, T ORCID logo; Van Colen, Carl ORCID logo
Publisher PANGAEA
Contributor Yang, Yan
Publication Year 2017
Rights Creative Commons Attribution 4.0 International;
OpenAccess true
Language English
Resource Type Dataset
Format text/tab-separated-values
Size 8592 data points
Discipline Earth System Research
Spatial Coverage (4.033 LON, 51.617 LAT)
Temporal Coverage Begin 2015-06-01T00:00:00Z
Temporal Coverage End 2015-06-30T00:00:00Z