| dc.description.abstract | Research about “Study Of Diversity Makrozoobenthic in Lut Tawar Lake, Lut Tawar
District, Takengon City Aceh Tengah Sub Province” was investigated on November
2009 - March 2010. The aimed of this research were to investigate the
makrozoobenthic gender and diversity in Lut Tawar Lake and to find the correlation
or relation among the values of physics and chemical factors of water with
makrozoobenthic diversity index. Purposive Random Sampling method was applied to
place sampling station and samples were collected from stations in each station
conducted by 9 times restarting. Samples was taken by using Eckman Grabb then in
filter by using Surber Net. Samples were identified in laboratory of Pengelolaan
Sumber Daya Alam dan Lingkungan, Department Of Biology, Faculty Of Mathematic
and Natural Sciences Of North Sumatera University.
The result showed that there were 23 genera of makrozoobenthic within 3
phylum (Annelida, Arthropoda and Molusca). Goniobasis has highest population
density with 101,23 ind/m2 found at station I, and Hydrobia, Gomphus, Helobdella,
Kogotus, Thiara has lowest density population with 1,23 ind/m2. Hydrobia has highest
population density with 133,33 ind/m2 found at station II, and Boyeria, Placobdell,
Ophiogomphus has lowest density population with 1,23 ind/m2. Melanoides has
highest population density with 103,70 ind/m2 found at station III, and Elimia has
lowest density population with 1,23 ind/m2 .The highest Indekx Diversity (H’) was
found at station II with 2,229 and the lowest at station III with 1,814. Analysis of
correlation with Pearson test showed that Oxygen Saturation showed very strong and
positive correlation to diversity of makrozoobentos. | en_US |
