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Detailed Ecological Assessment Report 2008 – Keenjhar Lake
More than 60 algal samples were collected from Keenjhar Lake, out of which 167
species belonging to 60 genera of 8 phyla namely Cyanophyta, Volvocophyta,
Bacillariophyta, Dinophyta, Euglenophyta, Chrysophyta, Chlorophyta, and
Charophyta were observed. The phyla Euglenophyta was not found in the
summer survey.
4.5.1.3 Pai Forest
In Pai Forest a total of 67 Algal species were collected in the summer survey
which belonged to 32 genera of 6 phyla Cyanophyta, Volvocophyta,
Bacillariophyta, Xanthophyta, Euglenophyta and Chlorophyta. A total of 33
(49.2%) species from 16 genera of phyla Cyanophyta, 10 (15%) species belongs
to 7 genera of phyla Volvocophyta, 14 (20.8%) species belongs to 8 genera of
phyla Bacillariophyta, 2 (3%) species belongs to 1 genus of phyla Xanthophyta, 4
(6%) species belongs to 2 genera of phyla Euglenophyta, 4 (6%) species belongs
to 2 genera of phyla Chlorophyta.
4.5.1.4 Chotiari Reservoir
More than 100 samples were collected from Chotiari reservoir dam, out of these a
total of 359 algal species belonging to 116 genera of 9 phyla Cyanophyta,
Volvocophyta, Bacillariophyta, Chrysophyta, Xanthophyta, Dinophyta,
Euglenophyta, Chlorophyta and Charophyta, 80 aquatic plants and 32 fishes
along with some physico-chemical parameters were recorded. The phyla
Xanthophyta was not found in the summer survey. Twenty five algal samples
were collected during the winter survey. Out of the 71 species belonging to 34
genera of 7 phyla e.g. Cyanophyta, Volvocophyta, Bacillariophyta, Xanthophyta,
Euglenophyta, Chlorophyta and Charophyta along with seventeen aquatic plants
and some physico-chemical parameter were recorded, water is rich in primary
productivity and plant production. The phyla Charophyta was not found in the
summer survey.
4.5.2 Account of number of species recorded
All the samples from the four sites were of better quality during the winter surveys
compared to the ones in summer (see Figure 42 below). This may be due to
better water quality and lack of salinity which was observed in the summer
months.
Figure 42 – summer and winter comparison of the number of species
collected in the four sites
400
350
300
250
200
150
100
50
0
26
Keti
Bunder
150
65
Keenjhar
Lake
167
85
WWF Pakistan – Indus for All Programme Page 151 of 188
Chotiari
359
67 71
Pai forest
Summer
Winter