PERSISTENT ORGANIC POLLUTANTS IN MUSCLE OF FARMED NILE TILAPIA (Oreochromis niloticus) AND FEED FROM BRAZIL - PART I: ORGANOCHLORINE PESTICIDES
Organochlorine compounds are hazardous pollutants due to their potential toxicity, chemical stability and long biological half life. The concentrations of OCP were determined in muscle fish and feed samples collected from fish farms in Brazil, by high-resolution mass spectrometer (HRMS) coupled with a high resolution gas chromatograph (HRGC). Nile tilapia in two ages (juvenile and adult) from two intensive (I) and two super intensive (SI) fish farms, were analyzed. All pesticides were detected in all samples, and DDT and related compounds were the predominant contaminants in all fish farms except in I1 where found higher mirex concentrations. p,p-DDE contributed to 70.1％ to the ΣDDTs, followed by p,p-DDT with 18.8％. In SI systems were found higher concentrations of ΣDDT, ΣHCH, HCB, aldrin, dieldrin, endrin, endosulfan while at I systems were found higher concentrations of Chlordane-related pesticides and mirex. For Hexachlorobenzene, g-HCH was the predominant congener in all fish farms, corresponding to 67％ of all HCH concentration. No significant correlation (p>0.05) were found between age of fish and OCP concentration were observed. However, it were observed that OCPs present positive correlation (p<0.05) between fish feed and fish muscle concentrations.
Organochlorine Pesticides Tilapia environmental pollution aquaculture fish feed
Botaro D Schramm K-W Germany Malm O Rebelo M.F Torres J P M
Eduardo Penna Franca Radioisotopes Laboratory,CCS-UFRJ,IBCCF,Ilha do Fund(a)o,CEP:21941-902,Rio deJa Helmholtz Zentrum München,German Research CenterforEnvironmental Health,Institute of Ecological Chem Helmholtz Zentrum München,German Research CenterforEnvironmental Health,Institute of Ecological Chem Eduardo Penna Franca Radioisotopes Laboratory,CCS-UFRJ,IBCCF,Ilha do Fund(a)o,CEP:21941-902,Rio de J
国际会议
北京
英文
1-4
2009-08-24（万方平台首次上网日期，不代表论文的发表时间）