Pteropod population-level responses to acidification across different time-scales in the California Current System ...
Climate change will increase the frequency, magnitude and duration of acidification extremes in the California Current System (CalCS). Observational evidence suggests that extremes superimposed on the long-term ocean acidification trend and seasonal variations have resulted in widespread dissolution...
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| Format: | Text |
| Language: | English |
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ETH Zurich
2022
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| Online Access: | https://dx.doi.org/10.3929/ethz-b-000594898 http://hdl.handle.net/20.500.11850/594898 |
| Summary: | Climate change will increase the frequency, magnitude and duration of acidification extremes in the California Current System (CalCS). Observational evidence suggests that extremes superimposed on the long-term ocean acidification trend and seasonal variations have resulted in widespread dissolution, lack of accretion, and developmental delays in calcifying pteropods. However, a comprehensive attribution of ecosystem impacts to carbonate chemistry perturbations at different time scales is limited. Here, we quantify the effects of ocean acidification at different time-scales on the population-level across several generations of pteropods. We use an individual-based model with life stage specific responses to environmental conditions in a regional hindcast simulation (1984-2019) of the CalCS to compare the effects of longterm ocean acidification with the seasonal variation and short-lived acidification extremes. We find that the timing of extremes and life-stage composition of the pteropod community determine ... |
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