KUALITAS AIR WADUK PENJALIN BERDASARKAN STRUKTUR KOMUNITAS MAKROBENTHOS
Abstrak: Macrobenthos is one
of the biotic water constituent and can be used as bioindicator in determining
water quality conditions. Water quality can be seen in terms of community
structure of macrobenthos. The present study aimed to determine the physical
and chemical water qualities in Penjalin Reservoir and to know the community
structure of macrobenthos contained in the waters of Penjalin Reservoir.
Community structure includes Density (organism/m2), Relative Density, Dominance
Index (C) and Diversity Index (H ') as well as to determine the relationship
between the water quality (physical and chemical) and the macrobenthos density.
The physical and chemical qualities of Penjalin Reservoir water was good based
on class III water quality standard according to PP No. 82 Ttahun 2001. Based
on observation, 11 macrobenthos were obtained. Diversity Index (H') based on
the criteria of Lee et al. (1978) showed
moderate values (2.07 to 1.66) suggesting a low contamination level. The
relationship of macrobenthos density and its chemical and physical quality of
water pH, temperature, light penetration, depth, DO, BOD was weak, but had
strong relationship with TSS. The results showed a linear regression equation Y
= 898.76 X - 236.946 (Y = density and X = TSS) which could be interpreted that
the more value of macrobenthos density the higher value of TSS contained in the
water.
Penulis: Ratih Junika Widjaja
Putri, Carmudi, Anastasia Endang Pulungsari
Kode Jurnal: jpbiologidd170027
