author(s)
Hameed Ur Rehman, Kinza Zarin, Sumbal Haleem, Arshi Hezbullah, Abdul Wahab, Shahzeb Sajed, Muzaffer Khan

abstract
Gomal Zam Dam is a multi-purpose gravity dam in South Waziristan Agency of Federally Administered Tribal Areas, Pakistan. The dam impounds the Gomal River, a tributary of the Indus River, at Khjori Kach, where the Gomal River passes through a narrow ravine. The height of Gomal zam dam is 433ft or 133meter while length 758ft or 231meter and coordination are 32°05′55″N 69°52′53″E. The purpose of the dam is irrigation, flood control and hydroelectric power generation. The survey was conducted from June 2014 to June 2015 during which about seven species were identified as Ctenopharyngodon idella, Labeo rohita, Hypophthalmichthys molitrix, Hypophtalmicthyus nobilis, Oreochromis niloticus, Cyprinus carpio, and Tor tor which belongs with order Cypriniformes, perciformes family Cyprinidae and Cichilidae which shows abundance of Cyprinidae species. From the obtained study it may be concluded that Gomal Zam dam environment are more favorable for cyprinidae species as compared to other species.