Keanekaragaman Plankton di Danau Lut Tawar Kecamatan Lut Tawar Kota Takengon Kabupaten Aceh Tengah

Abstract

Have been done research about Diversity Plankton in Lut Tawar Lake Lut Tawar District Takengon City Aceh Tengah Sub Province. This research is done with Purposive Random Sampling that determinating 3 research station of pursuant to difference of society activity in area. Samples were taken by 4 restating and 4 deepness at each station (0 metre, 3 metre, 6 metre, 9 metre). The result of research show that there were 18 class of plankton which included 10 class of fitoplankton which devided into 37 family and 48 genus and 8 class of zooplankton which devided into 16 family and 20 genus. Total highest abundance pursuant to station obtained at station 3 that is 21.061,220 ind/l while the lowest there is at station 2 that is 16.867,347 ind/l. The highest value of diversity index at station 1 that is 2,756 and the lowest at station 2 that is 2,271 and the highest value of equatibility index at station 1 that is 0,763 and the lowest at station 2 that is 0,671.