Assessment of Fish Diversity and Weight-Length Analysis of Dominant Species in Haleji Lake District Thatta, Sindh, Pakistan
Assessment of Fish Diversity and Weight-Length Analysis of Dominant Species in Haleji Lake District Thatta, Sindh, Pakistan
Athar Mustafa Laghari1*, Naeem Tariq Narejo2, Muhammad Hanif Chandio1, Faheem Saddar3, Muhammad Yunus Laghari4, Munawar Lal1, Urooj Imtiaz4, Majida Parveen Narejo5, Hameeda Lashari4, Ghulam Abbas5 and Shahnaz Rashid5
ABSTRACT
Assessment of fish diversity and weight-length analysis of dominant species in Haleji Lake, District Thatta Sindh, Pakistan was enumerated during September-June 2017-2019 accordingly. Total collection of fish in the studies was 1066 number and consists of 28 kinds related 11 families. Simpson’s biodiversity index (1-D=0.927) shows that the surroundings of Haleji lake observed as low in terms of fish diversity, propagation and growth. Shannon- Weiner index (H) was used to compute richness and abundance from four locations. Highest richness and abundance were noted at site I richness (32%) abundance 429 and diversity index (DI) 0.927 correspondingly while lowest detected at site IV richness, 20% abundance 121 and diversity index (DI) was 0.87 accordingly. Three kinds of native carps like Labeo rohita (11.25%), Cirrhinus mrigala (10.88%), Cirrhinus reba (9.47%) and one species of each Clupiedae, Gudusia chapra (10.31) and Cichlidae, Oreochromis mossambicus (16.22%) were found to be leading (dominant) kinds throughout examination period and from sampling sites. Analysis of weight and length was accomplished for 5 leading fish kinds of carps and two other kinds throughout investigations. Examination of regression showed (b= values) healthier progress in all fish such as Gudusia chapra (b = 3.05), followed by Cirrhinus mrigala (b= 3.0), Cirrhinus reba (b = 2.98) Labeo rohita (b = 2.96) and Oreochromis mossambicus (b =2. 96) all displayed perfect or near to perfect growth (b=3.0) throughout the study period as described thru following equations. logw = -1.96 + 3.05 × logl for Gudusia chapra, logw = -2.30 + 3.0 × logl for Cirrhinus mrigala, logw = -1.89 + 2.98 × logl for Cirrhinus reba, logw = - 2.12 + 2.96 × logl for Labeo rohita, logw = - 1.88 + 2.96 × logl for Oreochromis mossambicus. Further, it was recommended that three dominant carps and two other species displayed perfect (Ideal) growth in Haleji Lake, District Thatta, Sindh, Pakistan.
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