Keanekaragaman Gastropoda Sebagai Bioindikator Pencemaran Lindi TPA Jatibarang di Sungai Kreo Kota Semarang
Abstract: Gastropod is a biotic component which is
important in river ecosystem. Gastropod will respond the changes of physical
and chemical condition of the river so that it can be the bio-indicator of the
contamination. This research is aimed
to know the
diversity of gastropod
as bio-indicator of
contamination of leachate
of Jatibarang dumping ground in Kreo river Semarang City. This research
was conducted on April until June 2015.
Gastropod sample was
got using purposive
sampling using Surber
Net. Gastropod sampling
was conducted in three station with three sampling spots in each
station, physical-chemical factor measurement including temperature,
brightness, pH, COD, DO and BOD was also conducted in every station. The
analysis of research result showed that diversity index and the number of
gastropod decreased in station which was contamined by leachate. The
contaminated station was station II. Diversity index was 0,66094 and the number
of gastropod was
114 ind/m2. This
condition was different
compared to station
I which had
not been contaminated. In station
I, diversity index was 1,03255 and the number of gastropod was 175 ind/m2. So
was the station which
got the recovery,
the station III,
where diversity index
was 0,82691 and
the number of gastropod was 140 ind/m2. Statistical
analysis result also showed that gastropod diversity correlated strongly to temperature,
brightness, pH, COD,
DO and BOD
on Kreo river.
This result showed
that gastropod responded the
changes of physical-chemical condition of Kreo river which was caused by the
contamination of leachate of
Jatibarang dumping ground.
From the research
result, it can
be concluded that
gastropod diversity on Kreo river can be used as bio-indicator of the
contamination of leachate of Jatibarang dumping ground.
Penulis: Dinar Mega Ayu, Ary
Susatyo Nugroho, Rivanna Citraning Rahmawati
Kode Jurnal: jpbiologidd150508
