Analisis Keanekaragaman dan Identifikasi Algae Mikroskopis Persawahan di Manguharjo Kota Madiun
Abstract: This study aimed at examining the variety and
the identification of microscopic algae in rice field areas in Madiun. The
study employed descriptive explorative design with direct observation to the
microscopic algae in rice field areas in Manguharjo, Madiun. The samples were
chosen by using purposive sampling technique to three stations and were
repeated four times. The variety data were calculated based on variety index
formula of Shannon-Winner, which differentiates the cultivating and post-harvesting
span. The identification is based on
the morphological shape
of algae, the
cell shape, the
colony formation, the
movement organs, and
the dominant colour. The
data were analyzed
descriptive quantitatively. The
result of the
study found sixteen genus of the
microscopic algae out of three classes of cyanophyceae (two genus); Bacillariophyceae (seven genus) ; and
Chlorophyceae (seven genus). In detail, the genus found were anabaena
andchroococcusfrom class of cyanophyceae.
Furthermore, there were
navicula, synedra, stauroneis,
melosira, fragilaria, rhizosolenia, and
triceratiumfrom class of
bacillariophyceae. Other genus
found were actinastrum, ankistrodesmus, mougeotia, ulothrix, spirogyra, pediastrum, and cosmarium from
class of Chlorophyceae. The variety result of the microscopic algae showed that
the type of algae in the cultivating span was H’=1,209 and in the
post-harvesting span was H’=1,057.
Penulis: Marheny Lukitasari,
Erny Purwati, Pujiati
Kode Jurnal: jpbiologidd150499
