The concept of cascading trophic interactions
reflects an elaboration of long-standing principles
1. of fishery management based on logistic models. In simpie worck, a rise in piscicore biomass
results in decreased fish zooplanktivore biomass,
which in turn allows an increase in herbivore
zooplankton biomass, and decreased phytoplankton
biomass (Jig. 3). Productivity at a given trophic level
is maximised at intermediate intensities of predation
at all trophic levels.