Untitled - WWF - Pakistan

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Detailed Ecological Assessment Report 2008 – Keenjhar Lake Figure 43 - Number of species recorded across each local status category Number of species 35 30 25 20 15 10 5 0 13 4 23 7 Rare Less common Status Common Very common WWF Pakistan – Indus for All Programme Page 130 of 165 16 29 2 4 Keenjhar Chotiari Figure 44 shows the status of fish species at national or country level. Most species fall into the category of common or less common and it is pertinent to note that no species were categorized as very common, indicating that either no fish species in the country has been classified under this category or that there are very few species that are very common, non of which are found in Keenjhar Lake or Chotiari Reservoir. Figure 44 – Number of species recorded across each national or country status category Number of species 45 40 35 30 25 20 15 10 5 0 2 0 11 6 Rare Less common Common Very common Sites 42 40 0 0 Keenjhar Chotiari 4.6.4 Economic values The economic value for each species was identified and plotted against the average density (number of each fish species caught from 100). Figure 45 shows the number of species in each category from the two freshwater sites. There was quite and even spread of species over the economic categories though most species had high or aquarium values. Species having very high value were the least common which may reflect that they are being targeted for extraction.
Detailed Ecological Assessment Report 2008 – Keenjhar Lake Figure 45 – Average abundance from each category over the two freshwater sites (Keenjhar Lake and Chotiari Reservoir) Avera abundance 3 2.5 2 1.5 1 0.5 0 Aquarium Fairly High High Economic values Low Very high Keenjhar Chotiari 4.7 Zooplankton Note: there is no comparative study between the sites on zooplankton primarily because the results are so different between areas there is very little comparative data to use. Therefore the report on zooplankton has been kept to findings and discussion only 4.8 Physico-chemical properties of water 4.8.1 Summary of water quality 4.8.1.1 Drinking water • Keti Bunder Two samples were collected from the Keti Bunder Town area. Sample KB- B1/A1is representing the surface drainage discharging in to Hajamro Creek near to Keti Bunder Town and sample KB-B2/A2 is representing the Keti Bunder Town waste water discharging in to Hajamro creek near Keti Bunder Town (Table 2). Since these two effluents are falling into sea, therefore the National Environmental Quality Standards (NEQs) of Pakistan (for the effluents disposal into sea) are referred for comparison. It is worth mentioning that the time of sample collection (KB-B1) the water level in Hajamro creek at Keti Bunder Town and in the surface drain was high due to high tide which therefore flooded the surface drain. It is because of this the TDS and other related parameters such as EC, hardness, chlorides, sulphates were found higher than the sample collected from the same location after monsoon (KB-A1). This time the Hajamro Creek near to Keti Bunder Town and surface drain level were very low. The Waste water coming from Keti Bunder Town contains washing water (originally KB water /saline water) used for different purposes excluding the drinking water). The drinking water is an expensive commodity and comes in tankers. Since more water is used in non drinking house-hold activities, the waste water generated has high WWF Pakistan – Indus for All Programme Page 131 of 165
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Untitled - WWF - Pakistan

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