| Food I | Food II | Food III | Food name | Country | Predator Stage |
|---|---|---|---|---|---|
| detritus | detritus | debris | particulate organic matter | Canada | juv./adults |
| plants | other plants | benthic algae/weeds | unspecified algae | (not available) | juv./adults |
| plants | other plants | benthic algae/weeds | filamentous algae | Canada | juv./adults |
| plants | other plants | terrestrial plants | terrestrial plant debris | South Africa | juv./adults |
| plants | phytoplankton | diatoms | small centrales | South Africa | juv./adults |
| plants | phytoplankton | diatoms | Aptinoptychus splendens | South Africa | juv./adults |
| plants | phytoplankton | diatoms | unspecified diatoms | Canada | juv./adults |
| plants | phytoplankton | diatoms | unidentified pennales | South Africa | juv./adults |
| plants | phytoplankton | n.a./other phytoplankton | unspecified microalgae | Canada | juv./adults |
| zoobenthos | mollusks | gastropods | Assiminea sp. | South Africa | juv./adults |
| zoobenthos | other benth. invertebrates | n.a./other benth. invertebrates | unspecified Foraminans | Canada | juv./adults |
| zoobenthos | other benth. invertebrates | n.a./other benth. invertebrates | unspecified small benthic animals | (not available) | juv./adults |
| zooplankton | other plank. invertebrates | n.a./other plank. invertebrates | unidentified foraminiferans | South Africa | juv./adults |
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