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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

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