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Detailed Ecological Assessment Report 2008 – Keti Bunder
the filtrate is measured. The volume of the plankton is then obtained by the
difference between the two volumes. A measure of the total catch is also e by
weighing the filtered plankton. One ml of the concentrated sample may contain so
many organisms that it would be very difficult to count them. One ml of the
concentrated sample was therefore diluted to 100 ml and out of this diluted sample,
one ml was taken. Identification and counting the samples was done under a
dissecting microscope with dark-field illumination. Staining was not required
although a drop of glycerin was put on each individual specimen isolated from the
jar in order to avoid any damage to the samples.
2.8 Physico-chemical properties of water
The samples were collected in pre monsoon (July 2007) and post monsoon
(October 2007) period. The samples were collected in clean acid rinsed bottles
for the general water quality parameters such as pH, temperature, conductivity
TDS, Total Hardness, Chlorides, Phenol, Sulphates, turbidity, ions and four heavy
elements. The BOD and COD water samples were collected in separate coloured
water bottles and kept in ice box for preservation. All samples were properly
sealed under specific codes/labels and dispatched to the water quality laboratory
the day after the collection with proper custody protocol.
The sampling strategy was designed according to the site conditions and in
consultation with the WWF team deployed at the study area. The sampling
scenario was designed to cover some town area and creeks that should highlight
the environmental effects on livelihoods. The location points and their significance
are highlighted in Table 2. Water samples were drawn considering full depth of
standing water or flowing water. The sample location points were marked on GPS
maps GPS which will be used as reference points for future studies. The
technique and methodology used for analyzing the samples are given in the
annex document.
S.no
Sample No
Table 2 – Significance of sample location points
Significance
Location Waypoints
1 KB-1 Surface Drain at Haji
Halim Sholani Village
N 2408316
E 6732929
2 KB-2 Waste water of Town N 2408552
E 6727127
3 KB-3 Bhoori Village Hand N 2403548
Pump, Creek area E 6728712
5 KB-4 Center of Kharo Chann N 2402015
creek
E 6728262
6 KB-5 Phulwani creek area
having Mangrove
N 2402750
E 6726166
Agriculture Drainage water
effluent discharging in to
Hajamro Creek
Keti Bunder Town waste water
being thrown in to Hajamro creek
Drinking water source of the
creek village
This creek receives fresh water
from Indus river which supports
to Palla Fish culture, which is
reportedly under threat
This creek area receives fresh
water from Indus river which
supports mangrove forest, which
is reportedly under threat
WWF Pakistan – Indus for All Programme Page 33 of 188