Anchovies are filter feeding fish. In 1972, the Peruvian anchovy industry was almost wiped out by a combination of overfishing and El NiƱo Southern Oscillation Events (ENSO’s). What conditions of wind and sea do the anchovies need to maintain large populations? How do these conditions change during ENSO years? 1. Describe basic similarities and differences between the large marine reptiles (e.g., plesiosaurs and mosasaurs) of the Mesozoic Seas and today’s large marine mammals (e.g., whales). 1. Describe how adaptations of pinnepeds and cetaceans allow them to survive in their respective environments.

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