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Table 2 Correlation of benthic macrobenthic invertebrate species diversity indices with environmental parameters

From: The distribution and diversity of benthic macroinvertebrate fauna in Pondicherry mangroves, India

  Berger Clay DO Dominance EC Equitability Eve Fisher MD OM pH Richness Salinity Sand H Silt Sulphide Tem
Berger 1.00 −0.31 0.29 0.84** −0.28 −0.94** −0.65** 0.68** −0.01 −0.58** 0.27 −0.68** 0.05 0.29 −0.09 −0.10 −0.59** 0.19
Clay −0.31 1.00 −0.46* −0.31 0.09 0.26 0.28 −0.38* 0.12 0.15 −0.11 0.23 −0.08 −0.79** 0.11 0.17 0.22 −0.07
DO 0.29 −0.46* 1.00 0.36 −0.34 −0.26 −0.04 0.38* −0.12 −0.49** −0.15 −0.25 −0.48** 0.44* −0.03 −0.15 −0.62** −0.51*
Dominance 0.84** −0.31 0.36 1.00 −0.26 −0.76** −0.53** 0.65** −0.14 −0.59** 0.07 −0.59** −0.08 0.21 −0.15 0.07 −0.52** 0.08
EC −0.28 0.09 −0.34 −0.26 1.00 0.34 0.35 −0.05 0.54** 0.19 0.20 0.40* 0.52** −0.06 0.48* −0.04 0.16 0.33
Equitability −0.94** 0.26 −0.26 −0.76** 0.34 1.00 0.65** −0.64** 0.15 0.61** −0.31 0.72** −0.05 −0.25 0.23 0.08 0.57** −0.22
Evenness −0.65** 0.28 −0.04 −0.53** 0.35 0.65** 1.00 −0.37* 0.28 0.11 0.05 0.89** 0.08 −0.27 0.40* 0.10 0.08 −0.15
Fisher 0.68** −0.38* 0.38* 0.65** −0.05 −0.64** −0.37* 1.00 0.26 −0.64** 0.41* −0.32 0.25 0.43* 0.22 −0.23 −0.59** 0.27
MD −0.01 0.12 −0.12 −0.14 0.54** 0.15 0.28 0.26 1.00 −0.22 0.50** 0.44* 0.48* −0.05 0.97** −0.13 −0.20 0.23
Om −0.58** 0.15 −0.49** −0.59** 0.19 0.61** 0.11 −0.64** −0.22 1.00 −0.38* 0.22 −0.07 −0.20 −0.29 0.10 0.73** −0.03
pH 0.27 −0.11 −0.15 0.07 0.20 −0.31 0.05 0.41* 0.50** −0.38* 1.00 0.20 0.82** 0.24 0.43* −0.32 −0.39* 0.72*
Richness −0.68** 0.23 −0.25 −0.59** 0.40 0.72** 0.89** −0.32 0.44* 0.22 0.20 1.00 0.28 −0.26 0.53** 0.10 0.28 0.03
Salinity 0.05 −0.08 −0.48** −0.08 0.52** −0.05 0.08 0.25 0.48* −0.07 0.82** 0.28 1.00 0.18 0.38* −0.27 −0.04 0.90**
Sand 0.29 −0.79** 0.44* 0.21 −0.06 −0.25 −0.27 0.43* −0.05 −0.20 0.24 −0.26 0.18 1.00 −0.07 −0.72** −0.39* 0.19
H −0.09 0.11 −0.03 −0.15 0.48* 0.23 0.40* 0.22 0.97** −0.29 0.43* 0.53** 0.38* −0.07 1.00 −0.08 −0.22 0.11
Silt −0.10 0.17 −0.15 0.07 −0.04 0.08 0.10 −0.23 −0.13 0.10 −0.32 0.10 −0.27 −0.72** −0.08 1.00 0.36 −0.26
Sulphide −0.59** 0.22 −0.62** −0.52** 0.16 0.57** 0.08 −0.59** −0.20 0.73* −0.39* 0.28 −0.04 −0.39* −0.22 0.36 1.00 −0.03
Tem 0.19 −0.07 −0.51** 0.08 0.33 −0.22 −0.15 0.27 0.23 −0.03 0.72** 0.03 0.90** 0.19 0.11 −0.26 −0.03 1.00
  1. *Correlated at 5% significance level.
  2. **Correlated at 1% significance level.
  3. Berger Berger Parker, DO Dissolved Oxygen, EC Electrical conductivity, Fisher Fisher Alpha, MD Margalef Diversity, H Shannon Weaver Diversity, Tem Temperature.