Komposisi dan Struktur Komunitas Fitoplankton di Danau Diatas Kabupaten Solok Sumatera Barat
Abstract: A study
on community of
phytoplankton in Diatas
lake was conducted
from April to
September 2014. This study
aimed to describe
composition and structure
of phytoplankton of
the lake. We sampled
phytoplankton at 6
stations purposively using
plankton net that
hauled vertically. We found
70 species of phytoplankton those belong to five classes, i.e.
Bacillariophyceae (33 species), Chlorophyceae
(27 species), Cyanophyceae
(5 species), Dinophyceae
(3 species) and Euglenophyceae (1 species). Total density of phytoplankton
ranged from 881.06 to 3,196.02 ind/l. The highest density was at Station VI
(Teluk Kinari) and the lowest one was at Station III (Muaro). Phytoplanktons with
higher relative density
(RD > 5
%) were Melosira
italica, Synedra ulna, Melosira granulata
(Bacillariophyceae),
Staurastrum cereates, Chlorella
vulgaris and Spirogyra fluviatis (Chlorophyceae).
Shannon-Wiener Diversity index of phytoplankton (H`) ranged from 1.30 to 1.71
with the highest
diversity index was
at Station IV
(Batang Hari) and
the lowest was at
Station V (central
lake). Equitability index
(E) was ranged
from 0.39 to
0.57. Similarity index among stations were low which ranged
from 34.48 to 62.50%.
Penulis: Muhammad Ikhsan,
Izmiarti, dan Indra Junaidi Zakaria
Kode Jurnal: jpbiologidd150636
