Five week-long laboratory experiments examined the effects of ocean acidification on the pteropod Limacina helicina from Puget Sound. The study tested four carbon chemistry conditions, ranging from current summer surface levels to future deep water scenarios, measuring shell condition and survival. Data were collected by researchers and archived by NOAA NCEI from May to July 2012.
Use Cases
- Modeling shell dissolution score as a function of aragonite saturation state (Ωa) using linear regression.
- Comparing pteropod survival rates across discrete carbon dioxide treatment levels (~460-500, ~760, ~1600-1700, ~2800-3400 μatm CO2).
- Analyzing the correlation between five specific shell characteristic scores and the continuous Ωa variable.
- Assessing mortality rate differences between oversaturated (Ωa ≈ 1.59) and undersaturated (Ωa ≈ 0.28) experimental treatments.
Strengths
- Five replicated experiments provide a basis for statistical analysis.
- Carbon chemistry conditions are precisely characterized with aragonite saturation state (Ωa) and CO2 levels.
- Shell condition is quantified using a structured scoring regime for five distinct characteristics.
Limitations
- Sample size and number of pteropods per experiment are not specified.
- Experiments were conducted under starvation conditions, which may not reflect natural survival dynamics.
- Temporal coverage is limited to a 2-month period in 2012.
Provenance
- Source
- NOAA_NCEI (National Centers for Environmental Information).
- Collection Method
- Laboratory experiments incubating pteropods collected from Puget Sound in controlled carbon chemistry conditions.
- Time Range
- 2012-05-10 to 2012-07-12
- Freshness
- null
- Geography
- Pteropods sourced from Puget Sound, an urbanized estuary in the northwest continental United States.