1. INCIDENCE OF EPIBIONTIC ASSOCIATIONSHIPS ON LERNEA CYPRINACEA PARASITIC ON BLUE MOLLY, POECILIA SPHENOPS by N. MANJAPPA1, RAVINDRAGOUDA PATIL1, K.S. MANJUNATHA GOWDA1 AND PRIYANAKA M GOWDA1
The incidence of epibiont protozoan, Epistylis spp. (Ciliophora, Peritrichia) attached to Lernaea cyprinacea parasitic on ornamental fish species, Poecilia sphenops (Blue Molly) has been reported in the present study. Fish were collected from 2 m2 cement ponds maintained at Fisheries Research and Information Center, KVAFSU, Hesaraghatta, Bengaluru, Karnataka. The average number of basibiont, Lernaea cyprinacea per fish was estimated to be 11.25 ± 2.52. The color of the epibiontic association varied from creamy white to green. In the present study, the basibiont, Lernaea cyprinacea was covered predominantly by colonies of peritrichous ciliate such as Epistylis, followed by rotifers and also occasionally by filamentous algae, Oscillatoria and diatoms. The color of the entire association was creamy white when only Epistylis spp. colonies with rotifers and some diatoms were found. The color was green in the associations where filamentous algae was also present.
KEY WORD: Epistylis, Lernaea cyprinacea, Epibiosis, Poecilia sphenops