| Food I | Food II | Food III | Food name | Country | Predator Stage | 
|---|---|---|---|---|---|
| plants | phytoplankton | diatoms | Chaetoceros debilis | Canada | juv./adults | 
| plants | phytoplankton | diatoms | Coscinodiscus centralis | Canada | juv./adults | 
| plants | phytoplankton | diatoms | Skeletonema costatum | Canada | juv./adults | 
| plants | phytoplankton | diatoms | Thalassiosira gravida | Canada | juv./adults |