BENTHOS SEBAGAI INDIKATOR BIOLOGI UNTUK MENENTUKAN TINGKAT PENCEMARAN PERAIRAN
ABSTRACT: The level of waters
pollution, apart from being determined by the characteristics physics-chemistry
water could be
also determined by
the aquatic biota
that played a
role as the
bio-indicator. The aquatic organism
that often was
used as the
bio-indicator to suspect water
pollution and degradation of
benthic organism, because
this aquatic organism
could not usually
avoid contact with the pollutant
as well as his life period relatively old, so as when the change in the quality
of water and substrate occure then will affect the composition and his
abundance. The sampling for the
benthic organism was
carried out to
five observation stations
that were spread
in several locations of Sangatta
River waters. The benthic organism that was above and in sediment mud was taken
by using Ekman grab. Results of observation against the macroinvertebrates in
each one the station was received the number of small species, that is 1 to 2
kinds with the abundance between 26 - 715 ind./m2. The calculation of the
diversity index the benthic organism to all the observation stations was
obtained the range thought between 0 - 0.56.
Based on the diversity index value of the benthic organism
in Sangatta river
waters showed that
this waters environment
was categorized heavily polluted.
At further was based on the value of Dominance and Regularity Index generally showed that
the benthic organism
respectively the kind
in this waters
environment spread not equitable.
Penulis: DENI UDAYANA
Kode Jurnal: jpperikanandd140005
