The Pacific oyster, Crassostrea gigas, shows negative correlation to naturally elevated carbon dioxide levels: Implications for near‐term ocean acidification effects

• Published in: Limnology and Oceanography
• Main Authors: Barton, Alan, Hales, Burke, Waldbusser, George G., Langdon, Chris, Feely, Richard A.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 2012
• Subjects: Pacific; Crassostrea gigas; Ocean acidification; Pacific oyster
• Online Access: http://dx.doi.org/10.4319/lo.2012.57.3.0698; https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.2012.57.3.0698; https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.2012.57.3.0698

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.