In Stephen Carpenter and colleagues' manipulations of lake food webs, increased densities of adult largemouth bass led to
A) increased rates of grazing on phytoplankton by zooplankton.
B) decreased rates of grazing on phytoplankton by zooplankton.
C) increased population sizes of planktivorous fish.
D) increased consumption of zooplankton by planktivorous fish.
E) no noticeable effects on food web structure.

Question

Quizplus · Accepted Answer

Increased densities of adult largemouth bass reduce the population of planktivorous fish, which in turn allows zooplankton populations to increase, leading to increased grazing on phytoplankton.

In Stephen Carpenter and Colleagues' Manipulations of Lake Food Webs