Studies on Dynamic of Physical and Chemical Characteristics of Water in GaoBaZhou Reservoir after Fi

• 作 者: CAI Yu LIU Zhi-guo CAI Yan-zhi WAN Song-tong XIA Jian-jun LI Xian-cai LEI Xiao-zhong WANG Liang
• 机 构: College of Biology and Pharmacy Engineering,Wuhan Polytechnic University,Fisheries Research Institut
• 出 处: Animal Husbandry and Feed Science
• 发表日期: 2012年05期
• 关键词: reservoir feeding eutrophication restoration breeding multiplication phosphorus

[Objective] The aim was to provide scientific basis for purifying water quality,ecological restoration and fishery breeding of GaoBaZhou reservoir multiplication and stocking.[Method] Monitoring of normal water physical,chemical characteristics and different number of data of GaoBaZhou reservoir was conducted in 2010 and 2011 after different amount of filter-feeding fishes stocking in this reservoir.[Result] The water physical and chemical factors TN,NO2,NO3-N-N,TP and COD,Chl.a in 2011 were significantly less than 2010,2011 month average 1.389 mg/L,0.039 6 mg/L,1.211 7 mg/L,0.137 3 mg/L,16.191 mg/L,10.226 8 mg/m3,2010 month average 1.659 mg/L,0.066 2 mg/L,1.472 9 mg/L,0.099 9 mg/L,18.314 8 mg/L,14.917 8 mg/L.The calculation results of TSIM showed that 2011 reservoir eutrophication TSIM were less than 2010,up to 53.78 and 57.36.[Conclusion] The whole reservoir area revealed mild eutrophication(the TSIM> 53),and it suggested that the filter-feeding fishes amount could be increased in the reservoir.

[Objective] The aim was to provide scientific basis for purifying water quality, ecological restoration and fishery breeding of GaoBaZhou reservoir multiplication and stocking. [Method] Monitoring of normal water physical, chemical characteristics and different number of data of GaoBa Zhou reservoir was conducted in 2010 and results after 2011 after different amount of filter-feeding fishes stocking in this reservoir. [Result] The water physical and chemical factors TN, NO2, NO3-NN, TP and COD, Chl.a in 2011 were significantly less than 2010, 2011 month average 1.389 mg / L, 0.039 6 mg / L, 1.211 7 mg / L, 0.137 3 mg / L, 16.191 mg / L, 10.226 8 mg / m3, 2010 month average 1.659 mg / L, 0.066 2 mg / L, 1.472 9 mg / L, 0.099 9 mg / L, 18.314 8 mg / L, 14.917 8 mg / L. The calculation results of TSIM showed that 2011 reservoir eutrophication TSIM were less than 2010, up to 53.78 and 57.36. area revealed mild eutrophication (the TSIM> 53), and it suggested that the filter-feeding fishes amount could be increased in th e reservoir.