The effects of ocean acidification and increased temperatures on the survival, growth, and morphology of red king crab (Paralithodes camtschaticus) (NCEI Accession 0170753)
Multiple stressor studies are needed to better understand the effects of oceanic changes on marine organisms. To determine the effects of near-future ocean acidification and warming temperature on young of the year red king crab (Paralithodes camtschaticus) survival, growth, and morphology, we conducted a long-term (184 d) fully crossed experiment with two pHs and three temperatures: ambient pH (~7.99), pH 7.8, ambient temperature, ambient +2 degrees Celsius, and ambient +4 degrees Celsius, for a total of 6 treatments. Mortality rate increased with both reduced pH and by higher temperatures, but interpretation of the multistressor effects is not straightforward as a clear trend was not observed. A synergetic effect was observed; the pH 7.8 and ambient +4 degrees Celsius temperature treatment had the lowest survival, with only 3% surviving to the end of the experiment. However, antagonistic effects were observed in the pH 7.8 ambient +2 degrees Celsius temperature treatment; the mortality rate in this treatment was less than the mortality rate of each of the stressors individually. Despite the effects on mortality, neither decreased pH nor increased temperature had an effect on growth or morphology. The results of this study combined with other studies suggest that ocean acidification and warming may have profound negative effects on red king crab populations in the upcoming decades unless the species is able to quickly adapt or acclimate to changing conditions.
Dataset Citation
- Cite as: Swiney, Katherine M.; Long, W. Christopher; Foy, Robert J. (2019). The effects of ocean acidification and increased temperatures on the survival, growth, and morphology of red king crab (Paralithodes camtschaticus) (NCEI Accession 0170753). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/b9kq-wf98. Accessed [date].
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gov.noaa.nodc:0170753
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NOAA National Centers for Environmental Information +1-301-713-3277 NCEI.Info@noaa.gov |
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Time Period | 2012-08-07 to 2013-01-29 |
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West: -152.3965
East: -152.3965
South: 57.796
North: 57.796
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Dataset Progress Status | Complete - production of the data has been completed Historical archive - data has been stored in an offline storage facility |
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Supplemental Information | Original title: Ocean acidification and increased temperatures reduce young of the year red king crab (Paralithodes camtschaticus) survival but not growth or morphology |
Purpose | This dataset is available to the public for a wide variety of uses including scientific research and analysis. |
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Last Modified: 2024-02-09T00:20:51Z
For questions about the information on this page, please email: ncei.info@noaa.gov
For questions about the information on this page, please email: ncei.info@noaa.gov