Table S2.

Annual linear regression results for March PDO and ONI values (x values, columns) versus physical and biological parameters (y values, rows) reported as r squared values with the corresponding significance level in parentheses

Dependent variablesSummed March PDO + ONIMarch PDOMarch ONIMaximum annual DA, ppm
Mean Yaquina Estuary water temperature, December–March (n = 17), °C0.810.690.630.68
(P<0.0001)(P< 0.0001)(P< 0.0001)(P< 0.0001)
SST anomaly, March (n = 20), °C0.660.670.370.27
(P< 0.0001)(P< 0.0001)(P = 0.0047)(P = 0.0196)
CSR anomaly, March (n = 19)0.510.430.420.23
(P = 0.0006)(P = 0.0022)(P = 0.0025)(P = 0.0379)
Mean alongshore currents, March–April (n = 15), cm s−10.220.290.0700.22
(P = 0.0771)(P = 0.0376)(P = 0.3422)(P = 0.0758)
Annual spring biological transition day (n = 20), year–day0.700.650.470.53
(P< 0.0001)(P< 0.0001)(P = 0.0009)(P = 0.0003)
Maximum annual DA in razor clams (n = 20), ppm0.630.500.54n/a
(P< 0.0001)(P = 0.0005)(P = 0.0002)
  • All y values were measured near the central OR coast, except for DA values in razor clams, which were measured coastwide. Bold values are significant at a 95% confidence interval or better.