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Table 3 Similarity analysis and percentage contribution of dissimilarity in the community structure based on organism coverage on the niche artificial reef. Phase 1 = 13 weeks, phase 2 = 15 to 67 weeks, phase 3 = 68 to 99 weeks (22 months after installation of the NTAR)

From: Ecological succession of benthic organisms on niche-type artificial reefs

Analysis

ANOSIM

 

R values

Phase 1–phase 2

Phase 1–phase 3

Phase 2–phase 3

0.8934

0. 9542

0. 5022

p value = 0.0001

SIMPER

 

% contribution

Phase 1–phase 2

Phase 1–phase 3

Phase 2–phase 3

 Indet. hydrozoans

29.61

31.60

17.16

 Biofilm

24.70

20.58

0.12

Balanus sp.

22.21

24.89

23.55

Callophyllis sp.

14.55

2.69

21.52

Phragmatopoma virgini

6.801

6.19

11.28

 Indet. Demospongiae 2

0.93

10.17

18.07

Lithothamnion sp.

0.82

3.88

7.69

 Indet. Demospongiae 1

0.38

0

0.59