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Table 5 Length and relative size of liver and spleen in experimental sticklebacks

From: Reciprocal cross infection of sticklebacks with the diphyllobothriidean cestode Schistocephalus solidus reveals consistent population differences in parasite growth and host resistance

Fish Standard Length (SL)

Estimate

Standard error

Z

P

NO-P + DE-mat-Hyb vs Contr DE-mat-Hyb

−0.173

0.383

−0.451

1.000

DE-P + DE-mat-Hyb vs Contr DE-mat-Hyb

0.469

0.383

1.224

0.976

DE-P_ + DE-mat-Hyb vs NO-P + DE-mat-Hyb

0.642

0.383

1.675

0.815

NO-P + NO-mat-Hyb vs Contr NO-mat-Hyb

0.254

0.390

0.653

1.000

DE-P + NO-mat-Hyb vs Contr NO-mat-Hyb

0.306

0.389

0.789

1.000

DE-P + NO-mat-Hyb vs NO-P + NO-mat-Hyb

0.052

0.385

0.135

1.000

DE-P + NO-SB vs NO-P + NO-SB

−0.621

0.233

−2.661

0.172

NO-P + NO-SB vs Contr NO-SB

0.462

0.328

1.407

0.935

DE-P + NO-SB vs Contr NO-SB

−0.159

0.327

−0.487

1.000

NO-P + DE-SB vs Contr DE-SB

−0.007

0.317

−0.023

1.000

DE-P + DE-SB vs Contr DE-SB

0.511

0.318

1.610

0.851

DE-P + NO-SB vs NO-P + DE-SB

0.519

0.228

2.275

0.386

Hepatosomatic Index (HSI)

Estimate

Standard error

Z

P

DE-P + NO-mat-Hyb vs NO-P + NO-mat-Hyb

0.153

0.157

0.974

0.996

NO-P + NO-mat-Hyb vs Contr NO-mat-Hyb

−0.531

0.160

−3.330

0.026

DE-P + NO-mat-Hyb vs Contr NO-mat-Hyb

−0.378

0.159

−2.377

0.322

NO-P + NO-SB vs Contr NO-SB

−0.148

0.134

−1.099

0.990

DE-P + NO-SB vs Contr NO-SB

−0.095

0.134

−0.713

1.000

DE-P + NO-SB vs NO-P + NO-SB

0.052

0.096

0.547

1.000

NO-P + DE-mat-Hyb vs Contr DE-mat-Hyb

−0.477

0.157

−3.041

0.064

DE-P + DE-mat-Hyb vs Contr DE-mat-Hyb

−0.289

0.157

−1.846

0.706

DE-P + DE-mat-Hyb vs NO-P + DE-mat-Hyb

0.187

0.157

1.194

0.980

DE-P + DE-SB vs NO-P + DE-SB

−0.076

0.093

−0.818

0.999

NO-P + DE-SB vs Contr DE-SB

−0.576

0.130

−4.436

<0.001

DE-P + DE-SB vs Contr DE-SB

−0.652

0.130

−5.015

<0.001

Splenosomatic Index (SSI)

Estimate

Standard error

Z

P

NO-P + NO-SB vs Contr NO-SB

−0.010

0.005

−1.878

0.718

DE-P + NO-SB vs Contr NO-SB

−0.008

0.005

−1.517

0.912

DE-P + NO-SB vs NO_P + NO-SB

0.002

0.004

0.515

1.000

NO-P + DE-SB vs Contr DE-SB

0.014

0.005

2.804

0.143

DE-P + DE-SB vs Contr DE-SB

0.008

0.005

1.541

0.903

DE-P + DE-SB vs NO-P + DE-SB

−0.006

0.004

−1.753

0.799

DE-P + DE-mat-Hyb vs NO-P + DE-mat-Hyb

0.182

0.006

−2.966

0.094

NO-P + DE-mat-Hyb vs Contr DE-mat-Hyb

0.005

0.006

0.737

1.000

DE-P + DE-mat-Hyb vs Contr DE-mat-Hyb

−0.014

0.006

−2.230

0.462

NO-P + NO-mat-Hyb vs Contr NO-mat-Hyb

−0.001

0.006

−0.138

1.000

DE-P + NO-mat-Hyb vs Contr NO-mat-Hyb

−0.004

0.006

−0.632

1.000

DE-P + NO-mat-Hyb vs NO-P + NO-mat-Hyb

0.000

0.006

−0.499

1.000

  1. Linear mixed effect model for the standard fish length (SL), hepatosomatic index (his) and splenosomatic index (SSI) as diagnostic tool of the physiological status of the three-spined stickleback when infected with S. solidus. For abbreviated parasite and host identities see legend to Table 3. Contr refers to sham-exposed control sticklebacks. Tables show post-hoc tests for focusing on the significant interaction between fish and parasite origins. Within fish group comparisons are shown, significant P-values (<0.05) in bold