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Description: Satellite data on primary productivity in the equatorial Pacific Ocean. The concentration of chlorophyll in the water was used as the measure. During the 1997–1998 El Niño episode, a massive amount of nutrient-poor water moved to the east, and so photosynthetic activity was negligible. (b) During a subsequent La Niña episode, massive upwelling and westward displacement of nutrient-rich water led to a vast algal bloom that stretched all the way to the coast of Peru. A Near-absence of phytoplankton in B Huge algal bloom in the equatorial the equatorial Pacific during an El Nino. Pacific in the La Nina rebound event. Picture Stats: Views: 227 Filesize: 422.17kB Height: 744 Width: 1752 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=47318 |