Figure 2 | Scientific Reports

Figure 2

From: ENSO-induced co-variability of Salinity, Plankton Biomass and Coastal Currents in the Northern Gulf of Mexico

Figure 2

ENSO impact on river runoff, salinity, and plankton biomass: (a,b) Mean discharge anomalies during El Niño and La Niña for the Mississippi-Atchafalaya rivers (MS-A), rivers other than MS-A (Other Rivers; Table S1), and total rivers (MS-A plus Other Rivers). Dark- and light-gray dots depict the significant correlations at the 90% and 95% confidence levels. (c) Monthly variation of the correlation between the El Niño 3.4 SST anomaly (N34) and the PC1 of surface salinity anomaly (SSA), surface phytoplankton anomaly (SPA), and surface zooplankton anomaly (SZA); circles depict significant correlations at the 95% confidence level. (d) Mean January-March (JFM) N34 index and the principal component of SSA, the chlorophyll anomaly from SeaWiFS and MODIS, and a standardized time series of zooplankton dry weight (ZDW) for March. The mean and standard deviation of the original (non-standardized) zooplankton dry weight series is 49 and 20 mg m−3, respectively.

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