Abstract
Nine genera (Symedres, Niatchia, Cymbelia, Eueena, Phaems, Schizogonium, Duff!aorta and Spfnitina of algae and seventeen genera (Paramecium, Brachionsis„, Kenzie Dephata, Moth4r, Chydar us, Cycl ocyprit, Eucyprls, Corixa, Micronecta, Ptycho-da, Cirironornus.Culex, Eriszalis, Ephydra, Amhna and Tublfex) of aquatic fauna were recorded in RD industrially polluted pond in Faisalabad, Alt these showed wide range of tolerance for soft to brackish waters, while the diatoms, cladocerans, ostrecods and rotifers were found to tolerate also chemically polluted water, The presence of the larvae of the genera Erbtaiis, Ephydra, Psychoda and Chironomus and Tri.Eqcx worm indicated low oxygen content of the pond.
INTRODUCTION
The of industrial wastes in a water body seriously affects the quality and quantity rf agaatic life in it. In Pakistan, the disposal of industrial afflue-nts into a pond, water channel, lake or canal is a common thing. 1n most cassis, pools and ponds have been formed the to the accumulation of such water in low lying places.
Very limited wuril: seems to have been undertaken in Pakistan OD the hydrobiology af chemically polluted water bodies. Ali el a?. (1975) studied the orgnisms found in industrially polluted waters of a pond near Hilal Tanneries in Otrjrat and of waste water channels modeled. with some industries located at. Kale Shah Kaku at Lahore - Sheikhupura Road. During their hydrobioro-gical studies at Nowshera in 1976, the same authors recorded 1 6, 30 and 22 gene-ra of atgar and 18 and 14 genera of aquatic fauna from the waste water bodies formed by the effluents of Associated Ferozesons Laboratories and Adarnjee Paper TAMS, Tenitctively.
