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Biodiversity, Richness and Evenness of freshwater fish species at Chashma barrage Mianwali, Punjab, Pakistan
Iqra Bibi, Muhammad Bilal Shahid, Fatima Mujahid, Abdullah Shahid
Abstract:
Biological diversity is defined by variations in physiology, morphology, and habitat among organisms. In Pakistan 19 Ramsar sites are present which have a wide diversity of fishes. Diversity of fish varies according to the various sites at Chashma barrage. A variation occurs in species of the different sites. The weekly survey basis data collected from the Chashma barrage site and Kundian site by the physical method using caste and drag nets. Data was also collected by local fisher man by indirect method to identify fish species. A total five month data collected from August to December 2022. In the current study total of 758 fish specimens were collected. The Shannon- Weiner index of all months was (H') 3.12Species Richness (R) was 30 and Evenness (H/S) was 0.91, whereas in site 2 Kundian was 754 specimens Shannon diversity was (3.15) species Richness was (30) and Evenness (0.92). It is concluded that main Chashma barrage area is highly rich in species and diversity among this area is also high A wide variety of fish species present among this site.
Keywords:
Biodiversity, Chashma barrage, fishes, morphology
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