Gray, Matthew W; Langdon, Chris; Waldbusser, George G; Hales, Burke; Kramer, Sean (2023): Seawater carbonate chemistry and larval feeding physiology of the mussel Mytilus californianus [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.958047
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Abstract:
Ocean acidification (OA)—a process describing the ocean's increase in dissolved carbon dioxide ( pCO2) and a reduction in pH and aragonite saturation state (Ωar) due to higher concentrations of atmospheric CO2—is considered a threat to bivalve mollusks and other marine calcifiers. While many studies have focused on the effects of OA on shell formation and growth, we present findings on the separate effects of pCO2, Ωar, and pH on larval feeding physiology (initiation of feeding, gut fullness, and ingestion rates) of the California mussel Mytilus californianus. We found that elevated pCO2 delays initiation of feeding, while gut fullness and ingestion rates were best predicted by Ωar; however, pH was not found to have a significant effect on these feeding processes under the range of OA conditions tested. We also modeled how OA impacts on initial shell development and how feeding physiology might subsequently affect larval energy budget components (e.g. scope for growth) and developmental rate to 260 µm shell length, a size at which larvae typically become pediveligers. Our model predicted that Ωar impacts on larval shell size and ingestion rates over the initial 48 h period of development would result in a developmental delay to the pediveliger stage of >4 d, compared with larvae initially developing in supersaturated conditions (Ωar > 1). Collectively, these results suggest that predicted increases in pCO2 and reduced Ωar values may negatively impact feeding activity and energy balances of bivalve larvae, reducing their overall fitness and recruitment success.
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Supplement to:
Gray, Matthew W; Langdon, Chris; Waldbusser, George G; Hales, Burke; Kramer, Sean (2017): Mechanistic understanding of ocean acidification impacts on larval feeding physiology and energy budgets of the mussel Mytilus californianus. Marine Ecology Progress Series, 563, 81-94, https://doi.org/10.3354/meps11977
Source:
Waldbusser, George G; Langdon, Chris; Hales, Burke; Haley, Brian A (2016): Results of experiments on feeding physiology of Mytilus californianus larvae in OA conditions. Biological and Chemical Oceanography Data Management Office (BCO-DMO), https://www.bco-dmo.org/dataset/662154
Documentation:
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James; Gentili, Bernard; Hagens, Mathilde; Hofmann, Andreas; Mueller, Jens-Daniel; Proye, Aurélien; Rae, James; Soetaert, Karline (2022): seacarb: seawater carbonate chemistry with R. R package version 3.3.1. https://cran.r-project.org/web/packages/seacarb/index.html
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Coverage:
Latitude: 44.747200 * Longitude: -124.061500
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Comment:
In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2022) 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 2023-04-26.
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License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1632 data points