PLANKTONIC COLLAGE?Biological oceanographer Mary Wilcox Silver assembled this photographic quilt of various microscopic plants, animals, fecal pellets, and other marine detritus resulting from a phytoplankton bloom in the North Pacific Ocean. Fertilizing waters artificially with iron might favor certain species over others and result in unpredictable pathways and consequences in ocean food chains. (Collage by Mary Wilcox Silver, University of California, Santa Cruz)[back]
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