| detritus |
detritus |
carcasses |
not specified |
Niger |
ungfisk / adulter |
| detritus |
detritus |
debris |
not specified |
Sudan |
ungfisk / adulter |
| detritus |
detritus |
debris |
< 1 mm organic debris |
Sudan |
ungfisk / adulter |
| detritus |
detritus |
debris |
> 1 mm organic debris |
Sudan |
ungfisk / adulter |
| plants |
other plants |
benthic algae/weeds |
Vallisneria |
Sudan |
ungfisk / adulter |
| plants |
other plants |
benthic algae/weeds |
Najas |
Sudan |
ungfisk / adulter |
| plants |
other plants |
benthic algae/weeds |
not specified |
Niger |
ungfisk / adulter |
| plants |
other plants |
benthic algae/weeds |
unidentified |
Sudan |
ungfisk / adulter |
| plants |
other plants |
benthic algae/weeds |
unidentified roots |
Sudan |
ungfisk / adulter |
| plants |
other plants |
terrestrial plants |
not specified |
Sudan |
ungfisk / adulter |
| plants |
other plants |
terrestrial plants |
unidentified seeds |
Sudan |
ungfisk / adulter |
| plants |
phytoplankton |
blue-green algae |
Agmenellum sp. |
Nigeria |
recruits/juv. |
| plants |
phytoplankton |
blue-green algae |
Microcystis sp. |
Nigeria |
ungfisk / adulter |
| plants |
phytoplankton |
green algae |
Closterium sp. |
Nigeria |
adulter |
| plants |
phytoplankton |
green algae |
Pediastrum sp. |
Sudan |
ungfisk / adulter |
| plants |
phytoplankton |
green algae |
Spirogyra sp. |
Sudan |
ungfisk / adulter |
| plants |
phytoplankton |
n.a./other phytoplankton |
Phacus sp. |
Nigeria |
adulter |
| zoobenthos |
benth. crust. |
n.a./other benth. crustaceans |
not specified |
Sudan |
ungfisk / adulter |
| zoobenthos |
benth. crust. |
ostracods |
not specified |
Nigeria |
adulter |
| zoobenthos |
benth. crust. |
ostracods |
not specified |
Niger |
ungfisk / adulter |
| zoobenthos |
benth. crust. |
shrimps/prawns |
Caridina |
Sudan |
ungfisk / adulter |
| zoobenthos |
benth. crust. |
shrimps/prawns |
not specified |
Niger |
ungfisk / adulter |
| zoobenthos |
insects |
insects |
not specified |
Nigeria |
ungfisk / adulter |
| zoobenthos |
insects |
insects |
not specified |
Nigeria |
ungfisk / adulter |
| zoobenthos |
insects |
insects |
not specified |
Nigeria |
ungfisk / adulter |
| zoobenthos |
insects |
insects |
not specified |
Nigeria |
ungfisk / adulter |
| zoobenthos |
insects |
insects |
unidentified |
Nigeria |
ungfisk / adulter |
| zoobenthos |
insects |
insects |
not specified |
Sudan |
ungfisk / adulter |
| zoobenthos |
insects |
insects |
not specified |
Nigeria |
ungfisk / adulter |
| zoobenthos |
insects |
insects |
not specified |
Nigeria |
ungfisk / adulter |
| zoobenthos |
insects |
insects |
unidentified |
Sudan |
ungfisk / adulter |
| zoobenthos |
mollusks |
bivalves |
not specified |
Niger |
ungfisk / adulter |
| zoobenthos |
mollusks |
bivalves |
unidentified |
Nigeria |
ungfisk / adulter |
| zoobenthos |
mollusks |
gastropods |
not specified |
Niger |
ungfisk / adulter |
| zoobenthos |
mollusks |
gastropods |
Planorbis spp. |
Nigeria |
ungfisk / adulter |
| zoobenthos |
mollusks |
gastropods |
Melanoides spp. |
Nigeria |
ungfisk / adulter |
| zoobenthos |
mollusks |
n.a./other mollusks |
unidentified |
Sudan |
ungfisk / adulter |
| zoobenthos |
other benth. invertebrates |
n.a./other benth. invertebrates |
not specified |
Nigeria |
ungfisk / adulter |
| zooplankton |
other plank. invertebrates |
n.a./other plank. invertebrates |
Asplanchna sp. |
Nigeria |
adulter |
| zooplankton |
other plank. invertebrates |
n.a./other plank. Invertebrates |
unidentified |
Ghana |
recruits/juv. |
| zooplankton |
other plank. invertebrates |
n.a./other plank. invertebrates |
not specified |
Sudan |
ungfisk / adulter |
| zooplankton |
other plank. invertebrates |
n.a./other plank. invertebrates |
Brachionus sp. |
Nigeria |
adulter |
| zooplankton |
other plank. invertebrates |
n.a./other plank. invertebrates |
Filinia sp. |
Nigeria |
recruits/juv. |
| zooplankton |
other plank. invertebrates |
n.a./other plank. invertebrates |
unidentified |
Sudan |
ungfisk / adulter |
| zooplankton |
plank. crust. |
cladocerans |
Bosmina sp. |
Nigeria |
ungfisk / adulter |
| zooplankton |
plank. crust. |
cladocerans |
Bosminopsis sp. |
Nigeria |
ungfisk / adulter |
| zooplankton |
plank. crust. |
cladocerans |
Alonella sp. |
Sudan |
ungfisk / adulter |
| zooplankton |
plank. crust. |
cladocerans |
Ceriodaphnia sp. |
Nigeria |
ungfisk / adulter |
| zooplankton |
plank. crust. |
cladocerans |
Daphnia sp. |
Nigeria |
ungfisk / adulter |
| zooplankton |
plank. crust. |
cladocerans |
Moina sp. |
Nigeria |
ungfisk / adulter |
| zooplankton |
plank. crust. |
cladocerans |
Diaphanosoma sp. |
Nigeria |
ungfisk / adulter |
| zooplankton |
plank. crust. |
plank. copepods |
not specified |
Nigeria |
ungfisk / adulter |
| zooplankton |
plank. crust. |
plank. copepods |
Cyclops sp. |
Sudan |
ungfisk / adulter |
| zooplankton |
plank. crust. |
plank. copepods |
not specified |
Nigeria |
ungfisk / adulter |
| zooplankton |
plank. crust. |
plank. copepods |
unidentified |
Ghana |
recruits/juv. |