| dc.description.abstract | Research about “The Diversity Of Macrozoobenthic in Sibiru-biru river flows,
Subdistrict of Sibiru-biru and Subdistrict Of Deli Serdang” was Investigated on
August 2010. Purposive Random Sampling method was applied to place sampling
station and samples were collected from four stations.in each station conducted by 15
times restarting. Samples was taken by using surber net. Samples were identified in
laboratory of Pengelolaan Sumber Daya Alam and Lingkungan, Department Of
Biology, Faculty Of Mathematic And Natural Sciences Of North Sumatra University.
The result showed that there were 36 genera of makrozoobenthic within 2
phylum, 3 class, 11ordo and 29 family. Hydropsyche the highest population density
with 195,55 ind /m2 found at station I, and Paraleptophlebia, Hagenius,
Symphitopsyche, Heteroplectron, Dineutus, Laccophillus, Rhithrogena, Miathyria,
Argia, Corydalus, Atherix, Ranatra, Neureclipsis, Polyrhytis, Naucorinae,
Macronychus dan Pisidium has the lowest density population with 0,74 ind / m2. The
highest Index of Diversity (H’) was found at station III with 2,196 , and the lowest at
IV station with 1,691. Analysis of correlation with Pearson test showed that light
penetration showed very lowest, BOD5 and speed of tream showed very strong
corelation to diversity of makrozoobenthic. | en_US |
