It was Creamer and Haas (They're married) who so upset Ruth Shady at the Caral Site that she discovered a few years back.
A broad outline of the Norte Chico diet has been suggested. At Caral, the edible domesticated plants noted by Shady are squash, beans, lucuma, guava, pacay, and camote.[4] Haas et al. noted the same foods in their survey further north, while adding avocado and achira.
There was also a significant seafood component, at both coastal and inland sites. Shady notes that "animal remains are almost exclusively marine" at Caral, including clams and mussels, and a large amount of anchovies and sardines.[4] That the anchovy fish reached inland is clear...
hmmm...so that's how the clams, mussles and anchovies ended up at Caral, they came with the whales!