Page 685 - e-Book

organisms to develop in a massive amount, gradually replacing other & forming water bloom

i.e. increasing their density but reducing the diversity.
We have to take necessary steps to check this situation. Proper planning & management

approaches can only maintain the biodiversity of this concerned water ecosystem & its
aesthetic properties.

Table 1: Phytoplankton Sample from a lentic water body Mankundu

Phytoplankton Sample (Lentic Pre- Monsoon Post- Phytoplankton
Waterbody, Mankundu) monsoon monsoon Class

Pediastrum angulosum Ehrenberg ex 0 32 6 Chlorophyceae
Meneghini

Selenastrum minutum (Nägeli) 2 0 16 Chlorophyceae

Collins
Sorastrum philiposianum Keshri & 5 22 8 Chlorophyceae

Mallick

Volvox aureus Ehrenberg 0 64 0 Chlorophyceae
Scenedesmus obliquus (Turpin) 3 16 64 Chlorophyceae

Kützing

Closterium parvulum Nägeli 12 0 0 Conjugatophyceae
Anabaena circinalis (Rabenhorst) 12 2 3 Cyanophyceae

Bornet & Flahault
Gloeotrichia echinulata P.Richter 22 0 0 Cyanophyceae

Microcystis aeruginosa (Kützing) 320 95 210 Cyanophyceae

Kützing
Oscillatoria princeps Vaucher ex 6 1 6 Cyanophyceae

Gomont
Spirulina major Kützing ex Gomont 22 0 5 Cyanophyceae

Cylindrospermum majus Kützing ex 25 0 12 Cyanophyceae

Bornet & Flahault
Aphanocapsa muscicola (Meneghini) 30 0 20 Cyanophyceae

Wille

Merismopedia punctata Meyen 32 0 0 Cyanophyceae
Aulosira fritschii Bharadwaja 8 2 0 Cyanophyceae

Navicula tripunctata (O.F.Müller) 3 1 0 Bacillariophyceae

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