Classification of neotropical cichlids according to "feeding behavior"

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Registered Member
Oct 4, 2019
Hello everyone,
I am researching on genetics with neotropical cichlids, and would like to separate species (I am grouping by genus) according to feeding behavior.
Feeding behavior I refer to the term used by some authors (Reference below along with more examples -see attached image-) to classify groups such as Geophagus, Satanoperca, Gymnogeophagus (for example) as Sifters; and Cichla, Astronotus, Cichlasoma, Crenicichla as Non-sifters.
Basically, if the fish feeds at the bottom, "sifting" the sediment for food, it will be defined as Sifter. If it feeds on the water column, it will be set to Non-sifter.
It would help me a lot if the answer was accompanied by an explanation and, if possible, images or scientific articles. But of course, all help will be welcome!
Obviously, the author of any help (as well as this forum) will be welcomed in the acknowledgements of my work.

References: LÓPEZ-FERNÁNDEZ HARBOR J WILLIS SWATKINS CHONEYCUTT RL and WINEMILLER KO 2014. Morphology and Efficiency of a Specialized Foraging Behavior, Sediment Sifting, in Neotropical Cichlid Fishes. PLoS One 9: e89832.

Sifter Examples:
Satanoperca daemon
'Geophagus' brasiliensis
Geophagus abalios
Biotodoma wavrini
Mikrogeophagus ramirezi
Thorichthys ellioti

Non-sifters Examples:
Guianacara stergiosi
Crenicichla sveni
Dicrossus filamentosus
Hoplarchus psittacus
Amatitlania siquia
Hypsophrys nematopus
Mesonauta egregius
Cichlasoma orinocense
Cichla temensis