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Table 4 Results of the ANOVA (three-factor) for abundance of the dominant caprellid species

From: An illustrated key to the soft-bottom caprellids (Crustacea: Amphipoda) of the Iberian Peninsula and remarks to their ecological distribution along the Andalusian coast

Source of variation df P. kroyeri P. marina P. typicus F versus
MS F P MS F P MS F P
Depth (De) 1 4.45 1.23 0.2989 0.44 0.15 0.7078 0.02 0.01 0.9792 Si (De × Se)
Sediment type (Se) 1 45.24 12.54 0.0076** 2.77 0.94 0.3599 96.69 2.52 0.1510 Si (De × Se)
Site (De × Se) 8 3.60 5.28 0.0007*** 2.94 1.38 0.2563 38.36 2.06 0.0817 Res
De × Se 1 0.01 0.01 0.9821 0.44 0.15 0.7078 0.02 0.01 0.9792 Si (De × Se)
Residual 24 0.68    2.14    18.61    
Cochran’s C test   C = 0.3127 C = 0.7403 (P < 0.01) C = 0.5552 (P < 0.01)  
Transformation   ln (X + 1) None None  
  1. MS mean square, P level of probability, df degree of freedom
  2. ** P < 0.01; *** P < 0.001