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Table 1 Comparison of Echinolittorina peruviana sizes (mm) (mean, SE) from the lower (L) and upper (U) high intertidal zones with separate K–S two-sample test applied to each time of sampling

From: Grazing effects of the periwinkle Echinolittorina peruviana at a central Peruvian high rocky intertidal

 

October 05

April 06

November 06

April 07

Mean size (SD)

L

7.99, 0.86

7.16, 1.08

7.93, 1.34

7.84, 1.05

U

6.50, 1.49

5.80, 1.30

5.08, 1.52

5.88, 1.76

D+

0.55

0.51

0.67

0.54

D−

−0.01

0.00

0.00

0.00

P

<0.001*

<0.001*

<0.001*

<0.001*

  1. Asterisks indicate that differences were all significant at the 0.01 level after sequential Bonferroni correction of the significance level
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Helgoland Marine Research

ISSN: 1438-3888

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