Importance of zooplankton secondary production to fishes at offshore petroleum platforms Benfield, M. C., R. F. Shaw and S. F. Keenan. Our research demonstrates that macrozooplankton are an important dietary component of arelatively large predator [Caranx chrysos]. Direct consumption of zooplankton apparently bypasses the usual (.e., forage fish) trophic levels. Read more about Importance of zooplankton secondary production to fishes at offshore petroleum platforms