Some reproductive studies in Clarias batrachus with reference to different thermal conditions

Eco-physiological study indicates the Clarias batrachus is a eurythermal fish and able to tolerate the wide range of climatic conditions. The quantitative analysis of nutritional components in gonadal region, such as glucose, proteins and fats showed the variations during exposure of fish to hot and cold temperatures. The fresh water catfish exhibits distinct phases of reproduction and also showed the changes in the levels of energy precursors with change in the excretory products, with respect to adaptability towards different environmental temperature conditions. Gradual increase of glucose, proteins, and cholesterol is observed in the male gonadal tissues. Rectal gland and clasper tissues showed, decreased of urea levels during the exposure of fish to the higher tolerable temperature. However, in female fish, the levels of proteins are significantly enhanced during the high temperature exposure. The levels of urea significantly decreased in the tissues of uterus and brain during the study period, while the lowering of glucose levels in brain indicates the extent of rate of physiological activity of the brain

Nutritive Evaluation of Some Small Indigenous Fishes

Nutritive Evaluation of Some Small Indigenous Fishes from Warora Taluka, (M.S.) Indi

Nutritive Evaluation of Some Small Indigenous Fishes

Nutritive Evaluation of Some Small Indigenous Fishes from Warora Taluka, (M.S.) Indi

Zooplankton abundance and its correlations with physico-chemical parameters from urban lakeWani, Dist. Yeotmal, Maharashtra.

Some physico-chemical and biological parameters were studied from urban lakeWani, distYeotmal to assess the pollution status. The parameters were studied for the period of one yeari.e. from July 2006 to June 2007. The sample analysis showed great diversity in zooplankton, consisting 65 genera belonging to five groups. The seasonal succession of zooplankton was in the order of summer>winter>monsoon. The physico-chemical parameter such as temperature, pH, CO2, TDS, DO, Sulphate, phosphate have been studied. The correlation analysis was also made between zooplankton and physico-chemical parameter

Evaluation of nutritive value of local fishes in Wani region, Dist. Yavatmal, (Maharashtra)

In the present investigation an attempt has been made to evaluate nutritive values of local fishes available in Wani area from Nirgudariver and Wardhariver. The present study was carried out during the period of Nov. 2008 to Oct. 2009. During study the survey, collection, identification and biochemical analysis of local fishes was done. The results of present study showed that all the fishes were rich in protein content, maximum protein content found in Anguilla bengalensis 29.34 % and minimum found in Punctius curmuca10.34 %.  Lipid contents of fishes were low and varied from 1.23 % in Rasboradaniconius to 6.54 % in Heteropneustes fossilis Glycogen content of fishes were negligible and varies from 0.11 % in Ostebramacotioto 0.090% in Cyprinuscarpio