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Table 2 PERMANOVA results analyzing the benthic assemblage and polychaetes assemblage from muddy and sandy sediment

From: Cost/benefit and the effect of sample preservation procedures on quantitative patterns in benthic ecology

Factors

DF

MS

F

Unique permutations

p(perm)

p(MC)

Macrofauna

      

Preservation (Pr)

1

4598.62

1.58

9929

0.1793 NS

0.1238 NS

Sediment (S)

1

72,874.61

2.10

9907

0.0001*

0.0001*

Pr × S

1

4484.29

1.54

9913

0.1814 NS

0.1335 NS

Sampling points (Pr × S)

16

2903.83

1.20

9800

0.1022 NS

0.1144 NS

Residual

40

2426.04

    

Polychaetes

      

Preservation (Pr)

1

5218.38

1.71

9928

0.1683 NS

0.1159 NS

Sediment (S)

1

71,914.60

23.60

9921

0.0001*

0.0001*

Pr × S

1

5420.79

1.78

9927

0.1654 NS

0.1005 NS

Sampling points (Pr × S)

16

3046.89

1.30

9840

0.0502 NS

0.0545 NS

Residual

40

2344.74

    
  1. NS not significant, DF degrees of freedom, MS mean squares, p(perm) permuted p value, p(MC) Monte Carlo p value
  2. * Significant difference for α = 0.05