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ICHTHYODIVERSITY OF
RIVER INDUS, AT JAMSHORO DISTRICT,
SINDH.
The Indus River in the North of Pakistan flows in a southerly
direction through the entire length of the country and merges
into the Arabian Sea at Karachi. The total length of the river is
about 3180 Km (1976 miles), the estimated annual flow is 207
Km3 and the river has a total drainage area greater than
1,165,000 Km2 = 450,000 m2 Korai, (2010).
Introduction of River Indus
Importance of Ichthyodiversity The study of fish and their stability is important. Fish population of
any given aquatic habitat can vary significantly from year to year.
Consequently, it would be necessary to carry out several studies in
the consecutive years in order to get clear picture. The stability of
fish has profound importance due to urgent need of environmental
management to know how much fish population naturally change
over time William, (1998). There are more than 186 freshwater fish
species described from freshwater bodies in Pakistan.
MATERIAL AND METHODS
Fish samples were collected from three stations of River Indus
at Jamshoro, 1. Karachi Wah, 2. Al-Mazar and 3. Phuleli, during
February 2010 to February 2011 on monthly basis. Samples
were collected from catch of fisher-men from three stations of
River Indus, by gill netting (mesh size 2.0-2.5 cm). Samples
were preserved in 10% formalin; 5 cc of formalin was injected
in the belly of fish with disposable syringe (BD), packed in
polythene bags and brought into laboratory at Department of
Fresh Water Biology and Fisheries, University of Sindh
Jamshoro.
MAP OF RIVER INDUS INDICATING SAMPLING SITES
IDENTIFICATION OF FISHES
The fishes was identified from the present literature,
various publication of Francis Day, Jayaram, K. C.
and Mirza, M. R. With counting fins, shape,
placement of pectoral, pelvic, anal and caudal fins.
Color pigments, size of body, body shape, barbells
(if present), scales present on the body, caudal fin
type, spines (if present), lateral line. These whole
parameter were considered.
RESULTS
Present study was the part of ongoing studies on ichthyodiversity
of River Indus. During present studies fifty fish species were
identified. Majorly twenty two fish species were belonged to
family Cyprinidae, six species to Bagridae, four species to
Channidae, three species to Mastacembelidae, two species each to
Cichlidae, Clupeidae, Siluridae, Notopteridae, Nandidae,
Schilbeidae and one species each to Clariidae, Gobiidae and
Belonidae.
Results
Cyprinid’s shows great diversity, thirteen species were
belonged to sub-family Barbinae, four species belonging to
sub family Cultrinae, three species to Rasborinae, one species
each to Cyprininae and Asidoparinae.
Secondly Bagridae consist large number of individuals, five
species were belonged to sub-family Bagrinae and single
specie to Ritinae. Securicula gora, Salmophasia bacaila, Chela
cachius, Barilius bendelisis and Aspidoparia morar were
rerecorded from River Indus after flood.
Conclusion
These species were not recorded for time being from River
Indus at Sindh by researchers; so far these species are
rerecorded during present studies. No parasitic or fungal
infection was found from the fishes of River Indus.
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