Research Article

A Comparison of Abundance and Diversity of Epiphytic Microalgal Assemblages on the Leaves of the Seagrasses Posidonia oceanica (L.) and Cymodocea nodosa (Ucria) Asch in Eastern Tunisia

Table 4

Summary of canonical correspondence analysis (CCA) of the three data matrices (epiphytic microalgae, stations, and biometric parametersvariables).

Axis 1Axis 2

Eigenvalues0.5640.020
Species-environment correlations0.9920.760
Cumulative percentage variance of species data69.672.0
Cumulative percentage variance of species-environment relation94.898.1
Sum of all eigenvalues0.810
Sum of all canonical eigenvalues0.595
Explained variance by CCA73,45%
Intraset correlations of variables with axes
 Density0.9581−0.1771
 Average of adult leaf length −0.9645−0.0258
 LAI −0.9591−0.1494