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Table 4 Results of t-tests evaluating the effect of rock type on mean byssal tread counts, mean mussel attachment strength, and the mean proportion of four thread failure locations per individual mussel

From: Does rock type account for variation in mussel attachment strength? A test with Brachidontes rodriguezii in the southwestern Atlantic

Variable df t P
Byssal thread countsa 28 4.28 < 0.01
Attachment strength 64 0.90 0.37
Thread failure (%) 28 0.49 0.63
Plaque failure (%)a 28 3.22 < 0.01
Rock failure (%) 28 2.99 < 0.01
Loose particle failure (%) 28 1.97 0.06
  1. Significant tests (P < 0.05) are marked in italics
  2. aln-transformed data