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Articles by A. Yasar
Total Records ( 2 ) for A. Yasar
  Tabinda , A. B, Moazzam Ali Khan , Omm-e-Hany , M. Ayub , M. Hussain , A. Yasar and M. Altaf Khan
  Phytoplankton being primary producers in an aquatic habitat play a key role in the production of fishes in water body. Besides a number of other important factors their abundance depends upon various water quality parameters. This study was conducted to assess the relationship between water quality parameters of Deg Nullah and phytoplankton. Physical and chemical parameters studied during the present study were pH, Temperature, Turbidity, Total dissolved solids, Alkalinity, Carbon dioxide, Dissolved oxygen and Hardness. Phytoplankton community was also studied and their relative abundance was estimated using standard techniques. Finally multiple regression models of the predominant species were developed in relation with above mentioned water quality parameters to asses the effect of these parameters on phytoplankton and the overall ecology of Deg Nullah upstream.
  A.B Tabinda , Moazzam Ali Khan , Omme Hany , M. Ayub , M. Hussain , A. Yasar and M. Altaf Khan
  Different species of carp fishes have different rates of oxygen consumption which varies with the change in temperature. Oxygen consumption studies were carried out on fingerlings (seed) of Labeo rohita, Cirrhina mrigala, Catla catla, Hypophthalmicthys molitrix and Ctenopharyngiodon idella at four different temperatures i.e., 15, 20, 25, 30°C in laboratory conditions. Labeo rohita seems to be the most tolerant species having highest oxygen consumption rates and better survival at low available oxygen concentration in water. Catla catla (at 15 and 30°C) and Hypophthalmicthys molitrix (at 20°C and 25°C) are least tolerant species with highest oxygen consumption rates. Rate of oxygen consumption is greater in Labeo rohita at 15, 20 and 25°C but highest in Cirrhina mrigala at 30°C. Labeo rohita seems to be the most tolerant species having highest oxygen consumption rates and better survival at low available oxygen concentration in water. Ctenopharyngiodon idella and Cirrhina mrigala are moderately tolerant species among the fish species under study.
 
 
 
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