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首页> 外文期刊>Canadian Journal of Pure and Applied Sciences >DIVERSITY AND ABUNDANCE OF FISH FAUNA AT HEAD MARALA, CHENAB RIVER, PUNJAB, PAKISTAN
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DIVERSITY AND ABUNDANCE OF FISH FAUNA AT HEAD MARALA, CHENAB RIVER, PUNJAB, PAKISTAN

机译：巴基斯坦旁遮普省CHENAB RIVER HEAD MARALA的鱼类动物多样性和丰富度

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摘要

Marala headwork situated on River Chenab in Punjab, Pakistan was surveyed to assess the diversity and abundance of the fish fauna during the period September 2015 to June 2016. A total of five sampling sites were studied on monthly basis by using different fishing nets for assessing fish diversity. Total 1391 fish specimens belonging to 38 species, 30 genus, 14 families and 6 orders were recorded in the present study. Family Cyprinidae was found dominant with 14 fish species followed by Channidae (4 species) and Bagridae (3 Species). Fish ab undance and diversity was assessed by using different diversity indices. The Shannon-Wiener diversity, Pielou's evenness and Margalef , s richness indices were 2.950, 0.81 and 11.8, respectively. Present findings showed that the population of Tor putitora and Nandus nandus has declined while exotic fish species, Cyp rinus carpio, Ctenopharyngodon idella, Hypophthalmicthyus molitrix, Oreochromis niloticus and Oreochromis mossambicus has become established. The lo w evenness in the river was an indication of the effects of anthropogenic activities such as habitat degradation, aquatic pollution, overfishing, damming and introduction of alien fish species. Present findings highlight the importance of instant mitigation measures for conserving fish diversity in the river.
机译：对巴基斯坦旁遮普省Chenab河上的马拉拉头颅进行了调查，以评估2015年9月至2016年6月期间鱼类区系的多样性和丰富性。每月使用不同的捕鱼网评估鱼类，共研究了五个采样点多样性。本研究共记录了1391个鱼类标本，分别属于38个属，30个属，14个科和6个目。鲤科有14种鱼类，其次是Chan科（4种）和巴格达科（3种）。通过使用不同的多样性指数评估鱼的丰度和多样性。 Shannon-Wiener多样性，Pielou的均匀度和Margalef的丰富度指数分别为2.950、0.81和11.8。目前的调查结果表明，托特托雷岛和南都楠的种群减少了，而外来鱼类，鲤鱼，鲤科，小孔雀科，尼罗罗非鱼和莫桑比克罗非鱼已建立。河流的平整度表明了人为活动的影响，例如栖息地退化，水生污染，过度捕捞，筑坝和引进外来鱼类。目前的发现突出了立即采取缓解措施对保护河流鱼类多样性的重要性。

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