Dua Anish, Parkash Chander
Laboratory of Aquatic Biology, Department of Zoology, Guru Nanak Dev University, Amritsar, India.
J Environ Biol. 2009 Mar;30(2):247-51.
Harike wetland was declared a Ramsar site in 1990. It is located at the confluence of two major rivers of Indus rivers system, the Beas and the Sutlej, but was never explored extensively for its existing fish biodiversity. Earlier only 27 fish species of commercial value were reported from the wetland. Acknowledging its importance for rich diversity fish assemblages in seven different reaches of Harike wetland were studied to determine their abundance and distribution. 61 fish species of 35 genera were recorded from Harike wetland during the present study. Cirrihinus mrigala and Cyprinus carpio belonging to family Cyprinidae were the dominant fish species. Lake and Riyasat having many microhabitats supported highest diversity of fishes (60 and 56 respectively) followed by Beas (20) Sutlej (14), Confluence (12), Reservoir (9) and Downstream (8). Among the IUCN designated threatened species, 1 Critically Endangered, 4 Endangered and 13 Vulnerable fish species of India are found in Harike wetland. Species diversity index, dominance, evenness and catch per unit effort were calculated to ascertain the fish distribution in Harike wetland.
哈里凯湿地于1990年被宣布为拉姆萨尔湿地。它位于印度河两大主要支流贝斯河和萨特莱杰河的交汇处，但此前从未对其现有的鱼类生物多样性进行过广泛的探索。此前，该湿地仅报告了27种具有商业价值的鱼类。认识到其对丰富多样鱼类群落的重要性，对哈里凯湿地七个不同河段的鱼类进行了研究，以确定它们的丰度和分布。在本研究中，从哈里凯湿地记录到了35属61种鱼类。鲤科的印度鲮和鲤鱼是主要的鱼类品种。拥有许多微生境的湖泊和里雅萨特鱼类多样性最高（分别为60种和56种），其次是贝斯河（20种）、萨特莱杰河（14种）、交汇处（12种）、水库（9种）和下游（8种）。在国际自然保护联盟指定的受威胁物种中，在哈里凯湿地发现了1种极度濒危、4种濒危和13种易危的印度鱼类。计算了物种多样性指数、优势度、均匀度和单位努力捕捞量，以确定哈里凯湿地的鱼类分布情况。
