Elevated pCO2 causes developmental delay in early larval Pacific oysters, Crassostrea gigas
By E. Timmins-Schiffman, Michael J. O’Donnell, C. Friedman, S. Roberts. 2013
97 citations recorded by the source corpus.
Increasing atmospheric CO2 equilibrates with surface seawater, elevating the concentration of aqueous hydrogen ions. This process, ocean acidification, is a future and contemporary concern for aquatic organisms, causing failures in Pacific oyster (Crassostrea gigas) aquaculture. This experiment determines the effect of elevated pCO2 on the early development of C. gigas larvae from a wild Pacific Northwest population. Adults were collected from Friday Harbor, Washington, USA (48°31.7′N, 12°1.1′W) and spawned in July 2011. Larvae were exposed to Ambient (400 μatm CO2), MidCO2 (700 μatm), or HighCO2 (1,000 μatm). After 24 h, a greater proportion of larvae in the HighCO2 treatment were calcified as compared to Ambient. This unexpected observation is attributed to increased metabolic rate coupled with sufficient energy resources. Oyster larvae raised at HighCO2 showed evidence of a developmental delay by 3 days post-fertilization, which resulted in smaller larvae that were less calcified.
Subfields: Environmental Engineering, Global and Planetary Change, Oceanography
View Paper: https://www.semanticscholar.org/paper/e617ceb35f241c949125826bd7372a07022b6fee
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In Global and Planetary Change
In Oceanography
Citations in the corpus
- Climate change and aquaculture: considering biological response and resources (2019, background): “These include Pacific oysters Crassostrea gigas (Kurihara et al. 2007, Parker et al. 2010, Barton et al. 2012, Timmins-Schiffman et al. 2013), eastern oysters C. virginica (Miller et al. 2009, Talmage & Gobler 2009), Sydney rock oysters Saccostrea glomerata (Parker et al. 2009, 2010, 2012, Watson…”
- Climate change and aquaculture: considering adaptation potential (2019, background): “For climate change stressors, this has been documented for several mollusc species in response to ocean acidification exposure, where energy intake and assimilation may be unaffected in conditions of plentiful food (Parker et al. 2013, Timmins-Schiffman et al. 2013).”