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Table 3 Permutational multivariate analyses for the abundances of L. salmonis stage groups at five sites

From: Multivariate evaluation of the effectiveness of treatment efficacy of cypermethrin against sea lice (Lepeophtheirus salmonis) in Atlantic salmon (Salmo salar)

  

Before treatment

 

After treatment

 

Multivariate approaches

Type of statistic

Value of statistic

p-value

Value of statistic

p-value

ANOSIM*

R

0.3532

<0.005

0.5758

0.001

Adonis†

R2

0.45897

<0.005

0.62723

0.001

MRPP‡

A

0.2459

0.001

0.3589

0.001

  1. The ANOSIM, Adonis and MRPP analysis calculated the statistic R, the R2 value and chance corrected within-group agreement (A), respectively, which indicated the magnitude of differences between group means.
  2. *Analysis of similarities ANOSIM.
  3. †Non-parametric multivariate analysis of variance (MANOVA) with the Adonis function.
  4. ‡A non-parametric procedure that does not assume normality for the distribution of data or homogeneous variances (1,000 permutations).
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BMC Veterinary Research

ISSN: 1746-6148

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