| dc.description.abstract | The research have been done in April 12-14th 2008 and from this research we want to
know about the Diversity Of Macrozoobenthic in lau Kawar Lakes. Sampel were
collected from four stations by Purposive Random Sampling method. Surber net’s
was used to taken the sampel. Samples were identified in Laboratory PSDAL,
Department of Biology, Faculty of Mathematic and Natural Sciences of North
Sumatera University.
The result showed that there were found four classes (Insecta, Crustaceae,
Turbelaria, and Gastropode) within 17 genera of Macrozoobenthic. Tubifex sp has the
highest density index with 30,86 ind/m2 that was founded in Fourth station, and
Allocapnia sp in thrid station has the lowest density index with 2,43 ind/m2
. The Index
Diversity (H’) of all station with value between 1,188-1,952 and according to the
analysis of Pearson Correlatin, Penetration, Dissolved Oxygen and Organic Substrat
has the direct correlated to the Diversity of Macrozoobenthic, while pH, Chemical
Oxygen demand, Biology Oxygen Demand saturation has the opposite correlated to
the Diversity of Macrozoobenthic, thus Light Penetration and Temperature have
constant variables. | en_US |
