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Massive Consumption of Gelatinous Plankton by Mediterranean Apex Predators

Figure 3

Stable isotope ratios of fin whales from the northwestern Mediterranean.

A solid circle represents the average stable isotope ratios of whales after correcting for diet-tissue isotopic discrimination and error bars show standard deviation. Other symbols show the average stable isotope ratios of potential prey: pelagic crustaceans (solid squares), gelatinous plankton (empty squares), squid (solid triangles) and small pelagic and mesopelagic fish (empty triangles).

Figure 3