NPP in Aquatic Ecosystems is Most Often Limited By

Question

NPP in aquatic ecosystems is most often limited by
A) light only.
B) light and nutrient availability.
C) temperature and latitude.
D) light and temperature.
E) latitude only.

Accepted Answer

Aquatic ecosystems often have limited nutrient availability, which leads to limited primary productivity. However, light is also a key factor in photosynthesis and can influence primary productivity as well. Therefore, the most common limitation for NPP in aquatic ecosystems is likely the availability of both light and nutrients.