INGESTION OF BACTERIA IN SUSPENSION INDIAN MAJOR CARPS (CATLA-CATLA, LABEO-ROHITA AND CHINESE CARPS (HYPOPHTHALMICHTHYS-MOLITRIX, ARISTICHTHYS-NOBILIS)
Sm. Rahmatullah et Mcm. Beveridge, INGESTION OF BACTERIA IN SUSPENSION INDIAN MAJOR CARPS (CATLA-CATLA, LABEO-ROHITA AND CHINESE CARPS (HYPOPHTHALMICHTHYS-MOLITRIX, ARISTICHTHYS-NOBILIS), Hydrobiologia, 264(2), 1993, pp. 79-84
Single-species groups of fry of the planktivorous, filter-feeding carp
s (silver carp Hypophthalmichthys molitrix, bighead carp Aristichthys
nobilis, rohu Labeo rohita and catla Catla catla) were exposed to the
bacterium Chromobacterium violaceum to assess if they could detect or
ingest unattached bacteria. The results indicate that planktivorous ca
rp fry are able to ingest unattached bacteria and that the numbers ing
ested increase with time and with bacterial concentration in the media
, although probably by passive means. It is also suggested that unatta
ched bacteria are of little nutritional significance to carps.