Which of the following results would be most likely if a layer of warm, light water caused by ocean surface warming blocks nutrient upwelling?
A) reduced populations of fish because they avoid warm water
B) increased populations of producers because they have access to more CO₂
C) reduced populations of producers because they have access to fewer nutrients
D) increased populations of producers because fewer fish are produced, and they eat fewer producers

Question

Quizplus · Accepted Answer

Nutrient upwelling is an important process for the growth and survival of producers in the ocean. If warm, light water blocks nutrient upwelling, producers will have limited access to essential nutrients, which could result in reduced populations of producers. This, in turn, could have a cascading effect on the rest of the food web, leading to reduced populations of consumers such as fish that rely on producers as a food source.

Which of the Following Results Would Be Most Likely If