Species & Samples
The freshwater pearl mussel species studied
What is Margaritifera margaritifera?
Typical months that define the growth season in southern Sweden.
What is May through October?
Two main stressors from human impact that strongly reduced shell growth.
What are low pH (acidification) and oxygen depletion?
The name for the composite chronology built from northern, central, and southern Sweden shells.
What is the NCS mean chronology?
How many specimens from Sweden were analyzed?
What is 79?
Approximate temperature (°C) below which shell growth is limited.
What is 5 °C?
The restoration treatment applied to acidified rivers that produced growth recovery.
What is liming?
Years spanned by the NCS mean chronology.
What is AD 1860–1989?
The country that supplied one additional specimen at the same latitude as Vramsån.
What is England?
Fraction of daily-growth variance explained by temperature in the Vramsån daily record (R², approx.).
What is about 0.31 (31%)?
The additional treatment applied in Kvarnbäcken that stimulated post-liming growth (nutrient input).
What is fertilization (addition of nitrogen and phosphorus)?
Percent of variability in annual growth explained by June–August air temperature in unpolluted settings.
What is about 35%?
The two Swedish rivers identified as polluted in the paper.
What are Slereboån and Kvarnbäcken?
Approximate number of daily microincrements counted in an annual increment
What is about 143 days?
How pollution changed the shell growth ↔ summer temperature relationship.
What is: it obscured/eliminated the correlation.
The climate index that showed a weak correlation with decadal growth patterns
What is the NAO (North Atlantic Oscillation)?