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Potential sardine habitat during spring (April) and summer (July) predicted using satellite-sensed oceanographic conditions during 1998–2009 (9). In agreement with our model predictions (9, 10), Pacific sardine (Sardinops sagax) spawn offshore of California during spring and then migrate north to feed in the coastal upwelling regions in summer (10, 13). The oldest, largest, fattest, most fecund sardine migrate farthest north (41).
