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Looking at Larval Fish

Joel Llopiz, a postdoctoral scholar in the WHOI Biology Department, studies how ocean food webs may differ at different latitudes. Working with fish ecologist Simon Thorrold, Llopiz analyzes isotopes in the amino acids of larval fish, for clues to their prey and feeding patterns. Here he selects fish larvae collected from the tropical Straits of Florida and from cooler, higher latitudes of Georges Bank to compare feeding behavior and nutrition in the two regions. (Photo by Tom Kleindinst, Woods Hole Oceanographic Institution)