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. 2021 Apr 15;16(4):e0248557. doi: 10.1371/journal.pone.0248557

Table 1. Oceanographic and climate data used as environmental covariates.

Variable (Unit) Mean ± SD Min-Max values Description Data Source
Local oceanography
SST (°C) 12.49 ± 1.44 8.77–18.24 Avg. sea surface temperature https://scripps.ucsd.edu/programs/shorestations/shore-stations-data/data-farallon/
SSS (PSU) 33.40 ± 0.56 26.81–34.27 Avg. sea surface salinity https://scripps.ucsd.edu/programs/shorestations/shore-stations-data/data-farallon/
FII (°C/km) 0.0331 ± 0.0144 0.0084–0.0990 Avg. front intensity index http://ghrsst-pp.metoffice.com/pages/latest_analysis/ostia.html
Regional
UI (m3/s/100m) 108.62 ± 104.16 -283–409.5 Avg. monthly Upwelling Index http://www.pfeg.noaa.gov/products/PFEL/modeled/indices/upwelling/NA/upwell_menu_NA.html
STB (day anomaly from day 90) 85.05 ± 20.57 50–122 Avg. spring transition date http://www.ndbc.noaa.gov/station_history.php?station = 46013
Basin scale climate
SOI (standardized index) -0.20 ± 1.85 -6.7–5.2 Avg. monthly Southern Oscillation Index values http://www.cgd.ucar.edu/cas/catalog/climind/soi.html
PDO (standardized index) 0.133 ± 1.14 -2.33–2.79 Avg. monthly Pacific Decadal Oscillation values http://jisao.washington.edu/pdo/PDO.latest
NPGO (standardized index) 0.245 ± 1.25 -2.99–2.96 Avg. monthly North Pacific Gyre Oscillation values http://eros.eas.gatech.edu/npgo/