. Bulletin. Science. Fig. 4. Above) Multivariate Enso Index values for 1987 and 1993. Below) Corresponding Sea Surface Temperature anomalies. ferences (p = ) in mean light radiation between our 1993 data and those of Ibarra-Obando (1997). This occurred for both the incident light flux and under- water light availability (Fig 6). Temperature stress and reduced availability of light likely contributed to lower productivity of eelgrasss in 1987. Upwelling of nutrient-rich waters during non-ENSO conditions maintains high nutrient levels in the water column. But thermal stratification can modif
. Bulletin. Science. Fig. 4. Above) Multivariate Enso Index values for 1987 and 1993. Below) Corresponding Sea Surface Temperature anomalies. ferences (p = ) in mean light radiation between our 1993 data and those of Ibarra-Obando (1997). This occurred for both the incident light flux and under- water light availability (Fig 6). Temperature stress and reduced availability of light likely contributed to lower productivity of eelgrasss in 1987. Upwelling of nutrient-rich waters during non-ENSO conditions maintains high nutrient levels in the water column. But thermal stratification can modify the depth of both the thermocline and the nutricline and so influence nutrient transport by upwelling. Upwelling index values are in a good correspondence with dissolved nutrient availability, corroborating reports on the role of an ENSO event in the reduction of dissolved nutrient availability in our study site (Silva-Cota and Al-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Southern California Academy of Sciences. Los Angeles, Calif. : The Academy
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