Please use this identifier to cite or link to this item: http://prr.hec.gov.pk/jspui/handle/123456789/14875
Title: An Ichthyofaunistic Study of River Swat and Development of a Taxonomic Key
Authors: Husan, Zaigham
Keywords: Biological & Medical Sciences
Zoology
Issue Date: 2020
Publisher: University of Peshawar, Peshawar.
Abstract: Scientific Study of fish fauna of River Swat was started by McClelland in 1842. Fish being one of the most important part of the biodiversity has remained the focus of many researchers in the area. It is included in most food chains and all food webs of aquatic bodies. Fish is considered as one of the most important and efficient bioindicator of the water body. Biodiversity studies of aquatic ecosystems cannot be considered complete unless fish diversity/ ichthyodiversity in the water body has not been fully explored and identified. Study and identification of fish fauna of a water body gives us the idea about its health and about its economic value. Main objective of the study was to idntify the complete fish diversity of the River Swat and make a pictorial identification key. In present study fish fauna of River Swat and one of its major tributaries, River Panjkora was collected and identification of species was done. The work was started in 2012 and collection was made using cast nets, hand nets and many local devices with the help of fishermen of the area. The main focus was to collect all species present in the area. Using standard keys fishes were identified. An exclusive pictorial dichotomous taxonomic key was constructed for the identification of fishes of river swat. The most important quality of the key is that it can be used not only by researchers and students working on the fauna of River Swat, but it can also be used by a lay man as coloured pictures of all the fishes are given in the key. This key also provides the local names of the fishes along with scientific names for ready reference. Using the key, the fish fauna / ichthyofauna of river Swat was identified to species level. All the 62 species identified from the river belong to Superclass Gnathostomata, class Actinopterygii, subclass Neopterygii, division Teleostei and superorder Ostaryophysi. These fishes belong to seven orders namely Cypriniformes, Siluriformes, Salmoniformes, Mastacembeliformes, Perciformes, Beloniformes and Channiformes. Fishes are included in 11 families; Cyprinidae, Nemacheilidae, Bagridae, Schilbeidae, Sisoridae, Salmonidae, Mastacembelidae, Ambassidae (Chandidae), Belontiidae, Belonidae and swat. The most important quality of the key is that it can be used not only by researchers and students working on the fauna of River Swat, but it can also be used by a lay man as coloured pictures of all the fishes are given in the key. This key also provides the local names of the fishes along with scientific names for ready reference. Using the key, the fish fauna / ichthyofauna of river Swat was identified to species level. All the 62 species identified from the river belong to Superclass Gnathostomata, class Actinopterygii, subclass Neopterygii, division Teleostei and superorder Ostaryophysi. These fishes belong to seven orders namely Cypriniformes, Siluriformes, Salmoniformes, Mastacembeliformes, Perciformes, Beloniformes and Channiformes. Fishes are included in 11 families; Cyprinidae, Nemacheilidae, Bagridae, Schilbeidae, Sisoridae, Salmonidae, Mastacembelidae, Ambassidae (Chandidae), Belontiidae, Belonidae and Channidae. These 11 families are further divided into 38 genera. Order Cypriniformes and family Cyprinidae have been proved as the largest family and order of the fishes in River Swat. The most abundant species were Barilius pakistanicus and Triplophysa microps and the least abundant were Schistura macrolepis, Glyptosternon reticulatum. The comparison of the present collection revealed that some fishes like species of Tor and Schizothorax are under great stress of extinction from River Swat. Some fishes seem to be missing from this river now as they were reported previously but not found in present collection example being Chela cachius, Aspidoparia morar, Amblypharyngodon mola, Devario devario, Naziritor zhobensis, Schistura naseeri, Glyptothorax naseeri, Colisa faciata and Colisa lalia etc. The reasons for this species loss may include mighty flood of 2010, illegal fishing, pollution and habitat loss. It was concluded that although River Swat has favourable environment for fish survival but due to above mentioned reasons it is not an ideal habitat for fish now. Conclusion was made that River Swat can help in solving protein deficiency issue and improve socio economic conditions of the area. Proper management, implementation of laws and awareness of masses is strongly recommended to conserve fish and aquatic resources of this area.
Gov't Doc #: 20212
URI: http://prr.hec.gov.pk/jspui/handle/123456789/14875
Appears in Collections:PhD Thesis of All Public / Private Sector Universities / DAIs.

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