What impact does el nino have on the fishing industry

a. an increase in the numbers of sea birds depletes the fish supply

b. nutriants no longer come to the surface, so fish die or migrate

c. ocean temperature are too warm for fish

d. fisherman are unable to fish with intense winds and currents

The answer is B. The reason behind this is that El Niño decreases the rate of upwelling of water on the coast. Upwelling occurs when cold, nutrient-rich water "wells up" from the surface. If this process is disrupted manly due to El Niño, the movement of marine life is also affected. As a result, fish either migrate or die due to lesser nutrients coming up in the surface.