Small indigenous fish species (SIS) have high nutritional value in terms of protein, vitamins, and minerals. but
due to changed hydro-biological conditions and man-made interventions many SIS have become threatened and
endangered and need immediate attention for their conservation. Therefore to sustain their fishery it is important to know
the food and feeding habits of SIS, which will be helpful for successful management of these fishes. The present study
investigated feeding the habit and diet composition of Gonialosamanmina (Ham.), a freshwater clupeid, by regular
monthly collection from the river Yamuna at Allahabad, India. During the study 295 specimens of G. manmina were
examined, length range 4.7-15.3 cm. Studies have shown that this fish having plant food material 85.6% and animal food
material 4.7% is strongly herbivores. The dominating food item was green algae (36.5%) followed by diatom (25.4%),
BGA (12.8%) and desmids (11.0%). The contribution of crustaceans, insects, protozoan, rotifers are almost negligible.
Hence the fish subsisted mainly on green algae and diatoms. The intensity of feeding (GSI) was found to be maximum
during January and June and minimum during March and July. The present findings will help in filling the gap in
knowledge about the feeding habit of G. manmina which will help in formulating strategies for proper development of their
fishery from the system.

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