During non - El Nino years there is relatively more upwelling off the coast of Peru. How does this upwelling affect fisheries?
a. The upwelling brings warmer waters up from deeper in the ocean which the fish don’t like, causing them to migrate northward.
b. The upwelling brings up nutrients from deeper in the ocean up to the surface, leading to more plants, fish, and birds
c. The upwelling brings cool waters up to the surface leading to fewer fish
d. The upwelling keeps deeper water from rising to the surface and leads to fewer fish