Perubahan Lingkungan Ekosistem Sungai Belawan terhadap Kualitas Air dan Keanekaragaman Makrozoobenthos sebagai Bioindikator
Abstrak: The sampling
technique of this research was purposive random sampling with 4 stations. The
results showed that there were 23 genera of macrozoobenthic, which were
categorized into 3 phyla, 5 classes, 10 orders, 18 families. The highest
density population index was shown by Terebralia 92,59 ind./m2 (station IV) and the lowest was by
Littorinia, Natica, Telescopium, dan Oleacinar 3,70 ind/m2 (station IV). The
diversity index of macrozoobenthic was
low, ranged from 0,86 to 1,85 and the evenness were high except station IV
(0,40). Similarity index of stations I and II was 21,05, stations I and was III
42,85. This means that no resemblance was observed between those stations..
Stations II and III 53,33 were resemble. The pollution of diversity
macrozoobenthic was mediumness, and station IV was heavyness of pollution.
Macrozoobenthic as bioindicators was Planaria, physa, dan Sphaerium. Effected
by quality of water such as; pH, DO, and COD
Penulis: Mayang Sari Yeanny
Kode Jurnal: jpbiologidd100161
