| Food I | Food II | Food III | Food name | Country | Predator Stage |
|---|---|---|---|---|---|
| detritus | detritus | debris | < 1 mm organic debric | Sudan | recruits/juv. |
| detritus | detritus | debris | > 1 mm organic debris | Sudan | recruits/juv. |
| detritus | detritus | debris | unidentified | Ghana | adults |
| nekton | finfish | n.a./other finfish | unidentified | Ghana | adults |
| nekton | finfish | n.a./other finfish | unidentified | Sudan | recruits/juv. |
| others | other terrest. Invertebrates | n.a./terrest. Insects | terrestial insects | Ghana | adults |
| plants | other plants | benthic algae/weeds | Najas | Sudan | recruits/juv. |
| plants | other plants | benthic algae/weeds | macrophytes | Sudan | recruits/juv. |
| plants | other plants | benthic algae/weeds | unidentified | Ghana | adults |
| plants | other plants | benthic algae/weeds | unidentified | Ghana | juv./adults |
| plants | other plants | benthic algae/weeds | unidentified seeds | Sudan | recruits/juv. |
| zoobenthos | benth. crust. | n.a./other benth. crustaceans | unidentified | Sudan | recruits/juv. |
| zoobenthos | benth. crust. | shrimps/prawns | Caridina | Sudan | recruits/juv. |
| zoobenthos | insects | insects | unidentified | Sudan | recruits/juv. |
| zoobenthos | insects | insects | unidentified | Ghana | adults |
| zoobenthos | insects | insects | unidentified | Ghana | adults |
| zoobenthos | insects | insects | unidentified | Sudan | recruits/juv. |
| zoobenthos | insects | insects | unidentified | Sudan | recruits/juv. |
| zoobenthos | insects | insects | unidentified | Ghana | adults |
| zoobenthos | insects | insects | unidentified | Ghana | adults |
| zoobenthos | insects | insects | unidentified | Ghana | adults |
| zoobenthos | insects | insects | unidentified | Sudan | recruits/juv. |
| zoobenthos | insects | insects | unidentified | Sudan | recruits/juv. |
| zoobenthos | insects | insects | unidentified | Ghana | adults |
| zoobenthos | insects | insects | unidentified | Ghana | adults |
| zoobenthos | insects | insects | unidentified | Ghana | adults |
| zoobenthos | insects | insects | unidentified | Sudan | recruits/juv. |
| zoobenthos | mollusks | bivalves | oysters | Ghana | adults |
| zoobenthos | mollusks | bivalves | oysters | Ghana | adults |
| zoobenthos | mollusks | bivalves | unidentified | Ghana | adults |
| zoobenthos | mollusks | bivalves | unidentified | Sudan | recruits/juv. |
| zoobenthos | mollusks | gastropods | Biomphalaria | Ghana | adults |
| zoobenthos | mollusks | gastropods | unidentified | Sudan | recruits/juv. |
| zoobenthos | other benth. invertebrates | n.a./other benth. Invertebrates | unidentified | Ghana | adults |
| zoobenthos | worms | n.a./other annelids | unidentified | Ghana | adults |
| zoobenthos | worms | n.a./other annelids | unidentified | Ghana | adults |
| zoobenthos | worms | non-annelids | unidentified | Ghana | adults |