The Pacific oyster, Crassostrea gigas, shows negative correlation to naturally elevated carbon dioxide levels: Implications for near-term ocean acidification effects
2012
Barton, Alan | Hales, Burke | Waldbusser, George G. | Langdon, Chris | Feely, Richard A.
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Afficher plus [+] Moins [-]National Science Foundationgrant OCE-1041267 supported G.G.W., and the National Oceanicand Atmospheric Administration Ocean Acidification Programsupported R.A.F. in preparation of this manuscript. Pacific MarineEnvironmental Laboratory contribution number 3720.
Afficher plus [+] Moins [-]We report results from an oyster hatchery on the Oregon coast, where intake waters experienced variable carbonate chemistry (aragonite saturation state < 0.8 to > 3.2; pH < 7.6 to > 8.2) in the early summer of 2009. Both larval production and midstage growth (∼ 120 to ∼ 150 µm) of the oyster Crassostrea gigas were significantly negatively correlated with the aragonite saturation state of waters in which larval oysters were spawned and reared for the first 48 h of life. The effects of the initial spawning conditions did not have a significant effect on early-stage growth (growth from D-hinge stage to ∼ 120 µm), suggesting a delayed effect of water chemistry on larval development.
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