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11 <br />Table 4. Continued. <br />cis-Chlordane <br />1976-77 0.06 0.93 0.61 10.11 92.5 <br />1978-79 0.07 2.53 0.66 28.50 94.4 <br />trans-Chlordane <br />1976-77 0.03 0.32 0.30 3.26 84.0 <br />1978-79 0.03 0.54 0.25 5.87 70.4 <br />cis-Nonachlor <br />1976-77 0.01 0.49 0.13 5.21 46.2 <br />1978-79 0.03 0.71 0.30 7.22 73.1 <br />trans-Nonachlor <br />1976-77 0.03 0.95 0.30 10.11 70.8 <br />1978-79 0.05 2.17 0.52 24.11 92.6 <br />Oxychlordane <br />1976-77 NA NA NA NA NA <br />1978-79 0.01 0.74 0.09 8.04 39.8 <br />a"Geometric" means were computed by transforming all values to the logto (residue + 1.0) scale, averaging the transformed values <br />for all samples present from each collection period, and back-transforming the means to the arithmetic scale. <br />bNA = not analyzed; ND = not detected. <br />Sum of p,p'-DDE, p,p'-DDD, and p,p'-DDT. <br />1978-1979 <br />Average Length <br />Average Weight <br />Lipid <br />% Moisture <br />p,p'-DDE <br />p,p'-DDD <br />p,p'-DDT U lAl <br />Total p,p'-DDT IZ / 11A <br />Aroclor 1248 <br />Aroclor 1254 //. <br /> <br />Aroclor 1260 <br />/I <br />" 7/7 <br />Total PCB's <br />Toxaphene <br />Endrin <br />alpha-BHC <br />Hexachlorobenzene <br />cis-Chlordane <br />trans-Chlordane <br />cis-Nonachlor <br />trans-Nonachlor <br />gamma-BHC <br />Dacthal <br />Oxychlordane <br />Dieldrin <br />Heptachlor <br />ti <br />ti <br />T <br />I <br />ti <br />T <br />Legend <br />r<.3 <br />3<r<.5 <br />5<-r<.7 <br />,7!5r<.9 <br />r>.9 <br />Fig. 2. Intercorrelations among wet-weight organochlorine residues in freshwater fish, 1976-79. In the hatching, lines sloping upward <br />to the right indicate positive correlations; those to the left, negative correlations.