Disclaimer note - WWF - Pakistan
Disclaimer note - WWF - Pakistan
Disclaimer note - WWF - Pakistan
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Detailed Ecological Assessment Report 2008 – Keti Bunder<br />
Tom Robert’s two volumes of Birds of <strong>Pakistan</strong> comprise of the first complete<br />
account of the avifauna of the country. The first volume contains detailed<br />
descriptions of 347 non-passeriformes and the second volume deals with 313<br />
species of passerines.<br />
Later, Ghalib et al (1999) listed the Birds of Chotiari Wetland Complex based on<br />
their study during 1997. They gave the preferred habitats of the various species,<br />
threats to avifauna and proposals for management of the site. Ghalib and<br />
Bhaagat (2004) dealt with the wetlands of Indus Ecoregion. They gave the list of<br />
important wetlands along with the species of avifauna recorded.<br />
Hasan et al (2005) have listed the fish and birds of Keti Bunder, Shah Bunder and<br />
other parts of the Indus delta. They have recorded 51 species of birds. Khan and<br />
Ghalib (2006) have given the bird population and threats to some selected<br />
important wetlands in <strong>Pakistan</strong>.<br />
1.3.5 Marine fisheries<br />
Many diverse studies have been conducted on many aspects of fish and fisheries<br />
of the coastal areas of <strong>Pakistan</strong>. The major bulk of literature is on the biodiversity<br />
of various parts of the coastal areas. The significant work in this regards is that of<br />
Ahmed et al. (1976), Ali and Jafri (1986), Iqbal et al. (1999), Jafri et al. (1999),<br />
Jafri et al. (2000), Jalil and Kamaluddin (1981), Kazmi and Kazmi (1979), Leghari<br />
et al. (1999), Mirza (1986), Niazi (1976), Parashad and Mukerjee (1930), Qureshi<br />
(1965), Siddiqui et al. (1973), Sufi (1957, 1962). Some work on the commercial<br />
fishes has been conducted by Ahmed and Niazi (1988), Bianchi (1985) and Khan<br />
(1999). The limnological aspects of various water bodies have been covered by<br />
Baig and Khan (1976), Baqai et al. (1974 a, b), Dewani et al. (2002), Mahar et al.<br />
(2000) and Nazneen (1995). The water pollution in the coastal area has been<br />
documented by Amjad et al., (1998), Monawar et al. (1999) while aquaculture<br />
aspect is badly lacking and the only work documented is that of Yaqoob (1994).<br />
1.3.6 Phytoplankton<br />
Phytoplankton community structure in lakes appear to be well studied (Smith,<br />
1990). Unfortunately in <strong>Pakistan</strong> except the work on Nazneen (1974) and Bri and<br />
Nazneen (1979), most of the research works concern with phytoplankton algae of<br />
temporary and permanent ponds. More over these studies are devoted only to the<br />
one species richness and many do not cover the entire seasonal variability. Many<br />
studies on phytoplankton of water bodies of this region appear not to be well<br />
documented from an ecological point of view. The knowledge of temperate lakes<br />
and their phytoplankton is much greater that that of tropical and sub-tropical lakes.<br />
Tropical lakes appear to have different plankton community structure from<br />
temperate lakes and are mostly populated by submerged and emergent<br />
macrophytes.<br />
Nitrogen was reported as the main limiting factor for production in tropical waters<br />
(Payne, 1986). But the shallow lakes of Salado River Basin are rich in both nitrates<br />
and phosphates (Quiros, 1989) and limitation by nutrient is not evidently contrary to<br />
most tropical aquatic eco-systems where nutrients are rapidly mineralized (Fisher,<br />
1978; Junk & Furch, 1991); sediments of these lakes store high amount of organic<br />
matter, mainly derived from macrophytes. Macrophytes appeared as the main<br />
factor influencing structure and abundance of phytoplankton (Izaguirre & Vincour,<br />
1994)/. Lakes with a greater biomass of higher plants showed lower phytoplankton<br />
densities. The influence of macrophyhtes on phytoplankton communities has been<br />
<strong>WWF</strong> <strong>Pakistan</strong> – Indus for All Programme Page 18 of 188