FishBase References for Ulyel, A.P., F. Ollevier, R. Ceusters
and D.F.E. Thys van den Audenaerde, 1991

Ref. No.	Title
6195	Food and feeding habits of Haplochromis (Teleostei: Cichlidae) from Lake Kivu (Central Africa). II. Daily feeding periodicity and dietary changes of some Haplochromis species under natural conditions.

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FishBase References for Ulyel, A.P., F. Ollevier, R. Ceustersand D.F.E. Thys van den Audenaerde, 1991