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Table 4 Frequency, abundance and indicator value (%) for the L. salmonis stage groups at five sites before and after treatment

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

A) Before treatment

        

Stages

Statistic

Site A

Site B

Site C

Site D

Site E

Maximum site

p-value

Chalimus

RF

0.166

1.000

0.667

1.000

1.000

  
 

RA

0.054

0.379

0.144

0.119

0.302

  
 

IndVal

0.009

0.379

0.096

0.119

0.302

B

0.049

PAAM

RF

1.000

1.000

1.000

1.000

1.000

  
 

RA

0.259

0.214

0.265

0.120

0.139

  
 

IndVal

0.259

0.214

0.265

0.120

0.139

C

0.405

Adult females

RF

1.000

1.000

1.000

1.000

1.000

  
 

RA

0.417

0.113

0.135

0.150

0.185

  
 

IndVal

0.417

0.113

0.135

0.150

0.185

A

0.001

B) After treatment

        

Chalimus

RF

0.500

1.000

1.000

1.000

0.000

  
 

RA

0.033

0.432

0.154

0.381

0.000

  
 

IndVal

0.016

0.432

0.154

0.381

0.000

B

0.011

PAAM

RF

0.167

0.000

0.667

0.833

1.000

  
 

RA

0.029

0.000

0.172

0.411

0.387

  
 

IndVal

0.005

0.000

0.115

0.343

0.387

E

0.065

Adult females

RF

0.000

0.000

0.222

0.333

0.200

  
 

RA

0.000

0.000

0.148

0.584

0.267

  
 

IndVal

0.000

0.000

0.033

0.195

0.054

D

0.358

  1. RF = Relative frequency, RA = Relative abundance, IndVal = Individual species values. Maximum site indicates the site that had the highest indicator value for each stage group. The p-value gives the probability of finding a higher indicator value in random permutations, with values of less than 0.1 indicating that the stage group is a significant factor.
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BMC Veterinary Research

ISSN: 1746-6148

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