MIKRONUKLEUS SPONTAN PADA ERITROSIT IKAN SAPU-SAPU (Liposarcus pardalis) DARI EMPAT STASIUN SUNGAI CITARUM HULU

This research was carried out to detect the frequency of micronucleus in sucker mouth catfish (Liposarcus pardalis) from the stream of upper Citarum. This area cover Sapan, Majalaya, Dayeuhkolot I and Dayeuhkolot II. The method followed the description method. Observation was conducted by counting the micronucleus from 1000 erythrocyte cells under the light microscope with 1000x enlargement. Data was analized using anova, and the result showed that within the erythrocyte of sucker mouth catfish caught in each stations, some micronucleus were detected. The frequency of micronucleus of these fishes found in Majalaya and Sapan were not significant, nevertheless, in Dayeuhkolot I and II were significant (p< 0.05). Frequency of micronucleus in sucker mouth catfish taken from Dayeuh kolot I and II were greater than from Majalaya significant.ly