期刊名称：Universal Journal of Environmental Research and Technology
电子版ISSN：2249-0256
出版年度：2012
卷号：2
期号：6
出版社：Euresian Publications
摘要：The current research work was conducted to find out the fish production potential of Goverdhan Sagar, a medium class water body of Udaipur in southern Rajasthan. Goverdhan Sagar is a shallow lake with a maximum depth of 7.62 meters and a shoreline of 3888.8 meters with relatively fringed margins and an area of 30.81 ha. Attempt has been made to assess the current water quality status of Goverdhan Sagar and to establish its relation with phytoplankton and primary productivity to suggest proper management practice for getting the optimum fish production. Physico-chemical parameters of Goverdhan Sagar were found to be congenial for productivity throughout the study period. The average water quality parameters of the lake during the study period were: air temperature-30.75 ?C, water temperature-28.57?C, depth of visibility-96.23 cm., pH-7.18, EC-381.8 ?S cm-1, dissolved oxygen-5.56 mg l-1, free CO2-6.56 mg l-1, carbonates-35.41 mg l-1 , bicarbonates-137.44 mg l-1, total alkalinity-185.73 mg l-1 , orthophosphates-0.13 mg l-1 , nitrate-nitrogen-0.46 mg l-1 , GPP-0.42 g C m3 h-1 , NPP-0.26 g C m3 h-1 , CR-0.17 g C m3 h-1. The Average phytoplankton count in Goverdhan Sagar was 36.71 Nos/ml distributed in 29 genera showed the order of dominance - Chlorophyceae > Bacillariophyceae > Cyanophyceae > Desmidiaceae. For effective channelization of the energy stocking of suitable fish species is also suggested
