Phytoplankton distribution in Dungun-Kemaman coastal water

Abstract

Distribution and abundance of phytoplankton in Dungun-Kemaman coastal water was studied during March and May 2007; which this period after post monsoon. Water sample was filtered by serial net; which the sizes were 20 µm 40µm, 60 µm and were preserved by Lugol's. Identification and calculation of phytoplankton were done Lacky Drop Method and compound microscope. Three main calculations were being calculated such as number per cell (abundance), index diversity, and index evenness. From the result, total genera was 35 genera where, 29 genera of phytoplankton obtained during Mac for net size 20 µm, 40 µm, and 60 µm were 2195 cells per liter, 31648 cells per liter, and 23738 cells per liter respectively. During May, the result is 27 genus; which 20 µm, 40 µm, and 60 µm were 12208 cells per liter, 13280 cells per liter, and 22285 cells per liter respectively. Diatom was major of division and the genus identified was Bacterias/rum sp., Chaetoceros sp., Hemiau/us sp., and Leptocylindrus sp. During March, average value of index diversity for 20 µm, 40 µm, and 60 µm were 2.07 ± 0.42, 2.26 ± 0.55 and 1.71 ± 0.51 respectively. During May, average value of index diversity for 20 µm, 40 µm, and 60 µm were 2.16 ± 0.69, 2.58 ± 0.51 and 2.50 ± 0.39 respectively. During March, average value of index evenness for 20 µm, 40 µm, and 60 µm were 0. 78