CONTRIBUTION OF THE ORGANIC WASTE FROM FISH CULTURE ON THE DEGRADATION OF WATER QUALITY OF RESERVOIR CIRATA

Abstract

Cirata is one of three reservoirs lay in Citarum River, where the water
body is used to fish culture in floating net. Lately, one or two times in a
year, fish in the floating n die massly because of the water quality of
et reservoirs have worsen, which resulted from the entering of organic
pollutant from human being activities in and outside of the Reservoir. This
paper is written to reveal contribution of organic waste from fish culture in
floating net represented human being activities inside of the Reservoir on
the worsening of water quality Cirata. The result revealed that the
Reservoir Cirata continually has been polluted by organic waste, which
gradually resulted in the worsening of water quality indicated by
increasing chemical oxygen demand (COD) and concentration of
chlorophyll-a (Chl-a), and decreasing secchi disk. This study indicated
that on 1997, fish culture using floating net (internal loading) in Reservoir
Cirata contribute the nutrient three times than domestic and agriculture
(external loading). This situation is guessed still going on hitherto,
therefore the reservoir become very hypertrophic, as giant cesspools, and
resulted in death of fish massly.