Distribution of Macrozoobentos In The Estuary of Seletreng River, Situbondo District

The estuary of the Seletreng river is located in the Banyuglugur area of
the Situbondo Regency and is directly adjacent to the shrimp pond area.
The estuary of this river is widely used by local residents to look for
fish, crabs. The existence of shrimp ponds near the mouth of this river
has made many changes to the surrounding ecosystem. The purpose
of this study is to determine the diversity index of macrozoobenthos
and to determine the uniformity of macrozoobenthos. This research was
conducted in February-March 2019, located in the waters of the mouth
of the Seletreng Banyuglugur river, Situbondo district. Uses 5 stations
with 3 repetitions. The diversity index value at the five stations, namely
at station 1 is at a value of 0.66 which is categorized as low, at station
2 it is 0.36, at station 3 is 0.53, at station 4 is 0.65, at station 5 is 0, 25
wherefrom all stations the diversity index value is less than 1 and
categorized as low diversity. The uniformity index value at the five
stations, namely at station 1 is at a value of 0.37, at station 2 is 0.18,
at station 3 is 0.24, at station 4 is 0.40, at station 5 is 0.12 wherefrom
all stations diversity index value less than 1 and categorized on
uniformity depressed.