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TABLE 1: FITTING THE LINEAR MODEL
 CARP
LAKE ALLEGANPLAINWELL IMPOUNDMENT
Source DFType III SSMSEF ValuePr > F DFType III SSMSEF ValuePr > F
Full Model log(lipid) 10.2030.2030.760.3862 10.2070.2070.96 0.3310
log(length) 10.7450.7452.770.0983 11.2451.2455.760.0188
yr 87.8540.9823.650.0007 61.1160.1860.860.5281
log(length)*yr 87.0610.8833.280.0018 61.0560.1760.810.5620
log(length)*log(lipid) 10.2360.2360.880.3511 10.1300.1300.600.4397
log(lipid)*yr 82.6290.3291.220.2905 61.1190.1860.860.5263
log(lipid)*log(length)*yr 82.6920.3371.250.274 61.0720.1790.830.5532
No Three-way Interaction log(lipid) 14.7884.78817.56<.0001 10.0550.0550.260.6135
log(length) 11.7731.7736.500.0117 10.8540.8544.000.0487
yr 97.8790.8753.210.0014 62.9320.4892.290.0429
log(length)*yr 97.2510.8062.960.0029 62.8790.4802.250.0465
log(lipid)*log(length) 14.2214.22115.490.0001 10.0200.0200.090.7593
log(lipid)*yr 95.2030.5782.120.0308 62.2390.3731.750.1200
 SMALLMOUTH BASS
LAKE ALLEGANPLAINWELL IMPOUNDMENT
Source DFType III SSMSEF ValuePr > F DFType III SSMSEF ValuePr > F
Full Model log(lipid) 10.0200.0200.10.7576 10.0010.0010.010.9425
log(length) 10.0120.0120.060.8081 10.0110.0110.050.8311
yr 30.2570.0860.410.7453 20.0360.0180.070.9288
log(length)*yr 30.3020.1010.490.6946 20.0290.0140.060.9423
log(length)*log(lipid) 10.0310.0310.150.7004 10.0000.0000.000.9955
log(lipid)*yr 30.1200.0400.190.9008 20.1720.0860.360.7013
log(lipid)*log(length)*yr 30.1240.0410.20.8969 20.1710.0860.360.7031
No Three-way Interaction log(lipid) 10.4180.4182.140.1515 10.0620.0620.270.6064
log(length) 10.0190.0190.100.7555 10.6400.6402.770.1052
yr 40.5520.1380.710.5920 21.0520.5262.280.1179
log(length)*yr 40.5900.1470.750.5607 21.1100.5552.400.1056
log(lipid)*log(length) 10.4730.4732.420.1273 10.0910.0910.390.5355
log(lipid)*yr 40.7550.1890.970.4366 20.1580.0790.340.7124
No Interactions log(lipid) 11.1591.1595.580.0221 14.1874.18717.060.0002
log(length) 10.0310.0310.150.7029 10.0580.0580.240.6283
yr 421.0765.26925.37<.0001 32.0230.6742.750.0557
TABLE 2: FITTED TIME TREND AND PREDICTED MEAN FOR 2010
  SMALLMOUTH BASS CARP
LAKE ALLEGAN PLAINWELL IMPOUNDMENT LAKE ALLEGAN PLAINWELL IMPOUNDMENT
Adjustment Values Length (cm) 34.8115 34.8115 50.5159 50.5159
Lipid (g/kg) 0.9753 0.9753 3.4218 3.4218
Model Parameter Estimates C1990 2.3739 2.1187 6.1205 4.3600
θ 0.8096 0.9222 1.3120 1.1799
k 0.1548 0.0827 0.0960 0.0538
σ 0.5200 0.4626 0.7304 0.4288
Predictions lcl 0.0353 0.1312 0.2397 0.5362
μ2010 0.0623 0.4017 0.6088 1.2493
ucl 0.2077 0.9353 0.9658 1.9887
Adjustment values refer to the length and lipid values used to adjust the residuals from the initial linear models and put all fish from each species on the same scale. The model parameter estimates are the maximum likelihood estimates for the parameters of the mixed order model and the lognormal shape parameter s.  Lcl and ucl are the lower and upper 95% profile likelihood based confidence limits for the maximum likelihood estimate of m2010, the mean PCB concentrations in 2010.
TABLE 3: SIMULATION RESULTS
Simulation Type Base Dataset Failed Covered Missed %Coverage
Lognormal Error Lake Allegan 4 958 38 96.2
Plainwell Impoundment 5 988 7 99.3
Empirical Distribution Lake Allegan 4 994 2 99.8
Plainwell Impoundment 7 990 3 99.7
Full Procedure Empirical Distribution Lake Allegan 13 729 258 73.9
Plainwell Impoundment 3 776 221 77.8
1000 datasets were generated for each simulation.  For each generated datatset, it was noted whether the procedures failed to converge (Failed), the generated confidence interval contained the true value (Covered), or did not contain the true mean (Missed).  A Monte Carlo estimate for the coverage of confidence interval (%Coverage) is given by Covered/[Missed+Covered].
Title Page | Introduction | Methods | Simulations | Results | Discussion | References | Appendix | Tables