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
