CalCOFI Reports, Vol. 30, 1989 - California Cooperative Oceanic ...
CalCOFI Reports, Vol. 30, 1989 - California Cooperative Oceanic ... CalCOFI Reports, Vol. 30, 1989 - California Cooperative Oceanic ...
LAVANIEGOS-ESPEJO ET AL.: EL NINO EFFECTS ON GULF OF CALIFORNIA EUPHAUSIIDS CalCOFl Rep., Vol. 30,1989 Nyctiphanes slmRlex \ 0 I \ kl Figure 8. Distribution of Nyctiphanes simplex \ / \ M RCH 19 0 P PO PO D \ DISCUSSION Environmental conditions in the Gulf of California during March 1983 showed climatic anomalies that can be explained as a response to the El Nifio event that affected the eastern Pacific Ocean beginning in fall 1982 (Cane 1983; Rasmusson and Wallace 1983; Simpson 1983; Barber and Chavez 1986). Those anomalies consisted mainly of sea-level rise and surface-water warming, both reaching record values for the last 30 years (Robles-Pacheco and Nernofoscelis difficilis Figure 7. Depth of the 1.5 ml/l oxygen concentration. but one of the stations yielded
LAVANIEGOS-ESPEJO ET AL.: EL NINO EFFECTS ON GULF OF CALIFORNIA EUPHAUSIIDS CalCOFl Rep.,Vol. 30,1989 EuDhousio distnquenda Euohousia tenero Figure IO. Distribution of Euphausia distinguenda. Figure 12. Distribution of Euphausia tenera Christensen 1984; Robles-Pacheco and Marinone 1987). The observed relatively low surface salinity of1983 (
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LAVANIEGOS-ESPEJO ET AL.: EL NINO EFFECTS ON GULF OF CALIFORNIA EUPHAUSIIDS<br />
CalCOFl Rep., <strong>Vol</strong>. <strong>30</strong>,<strong>1989</strong><br />
Nyctiphanes slmRlex<br />
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Figure 8. Distribution of Nyctiphanes simplex<br />
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DISCUSSION<br />
Environmental conditions in the Gulf of <strong>California</strong><br />
during March 1983 showed climatic anomalies<br />
that can be explained as a response to the El Nifio<br />
event that affected the eastern Pacific Ocean beginning<br />
in fall 1982 (Cane 1983; Rasmusson and Wallace<br />
1983; Simpson 1983; Barber and Chavez 1986).<br />
Those anomalies consisted mainly of sea-level rise<br />
and surface-water warming, both reaching record<br />
values for the last <strong>30</strong> years (Robles-Pacheco and<br />
Nernofoscelis difficilis<br />
Figure 7. Depth of the 1.5 ml/l oxygen concentration.<br />
but one of the stations yielded