Table 2 Spearman rank correlations between species densities and environmental variables (sediment fractions: >63 μm, <63 μm (mud) expressed as percentage, median grain size (μm), total carbon (%), TOC (%), Chl a (mg/m²) and submergence time (h)
Species | >63 μm (%) | <63 μm% (mud) | Median grain size (μm) | Total carbon (%) | TOC (%) | Chl a (mg/m²) | Submergence (h) |
|---|---|---|---|---|---|---|---|
Hydrobia ulvae | −0.12** | 0.06 | −0.14*** | 0.25*** | 0.21*** | 0.32*** | −0.38*** |
Cerstoderma edule | −0.08* | 0.13*** | −0.13** | 0.10* | 0.06 ns | 0.21*** | −0.28*** |
Pygospio elegans | −0.19*** | 0.18*** | −0.14*** | 0.14*** | 0.13*** | 0.19*** | −0.24*** |
Tubificoides benedii | −0.59*** | 0.53*** | −0.52*** | 0.49*** | 0.45*** | 0.64*** | −0.62*** |
Scoloplos armiger | 0.34*** | −0.26*** | 0.38*** | −0.31*** | −0.28*** | −0.44*** | 0.44*** |
Corophium volutator | −0.11** | 0.14*** | −0.16*** | 0.07 | 0.08 | 0.09 | −0.17*** |
Corophium spp. | −0.21*** | 0.26*** | −0.23*** | 0.15*** | 0.15*** | 0.20 *** | −0.20*** |
Eteone longa | −0.07 | 0.09* | −0.02 | 0.01 | −0.02 | 0.09 | −0.15*** |
Hediste diversicolor | −0.43*** | 0.34*** | −0.35*** | 0.36*** | 0.32*** | 0.52*** | −0.44*** |
Bathyporeia sarsi | 0.24*** | −0.24*** | 0.23*** | −0.23*** | −0.22*** | −0.20*** | 0.08 |
Caulleriella killariensis | −0.26*** | 0.19*** | −0.25*** | 0.14*** | 0.14*** | 0.18** | 0.06 |
Retusa obtusa | −0.34*** | 0.31*** | −0.24*** | 0.28*** | 0.23*** | 0.38*** | −0.28*** |
Urothoe poseidonis | 0.24*** | −0.15*** | 0.13** | −0.26*** | −0.25*** | −0.15** | −0.03 |
Ampharete acutifrons | −0.09* | 0.12** | −0.05 | 0.08* | 0.03 | 0.02 | 0.08* |
Arenicola marina | 0.11** | −0.09* | 0.06 | −0.15*** | −0.15*** | 0.001 | −0.23*** |
Heteromastus filiformis | −0.46*** | 0.44*** | −0.42*** | 0.35*** | 0.33*** | 0.42*** | −0.30*** |
Nereis spp. | −0.55*** | 0.48*** | −0.39*** | 0.43*** | 0.39*** | 0.57*** | −0.55*** |
Capitella capitata | 0.20*** | −0.07 | 0.11** | −0.21*** | −0.21*** | −0.01 | −0.06 |
Macoma balthica | −0.37*** | 0.30*** | −0.25*** | 0.32*** | 0.29*** | 0.38*** | −0.44*** |
Scrobicularia plana | −0.35*** | 0.29*** | −0.28*** | 0.25*** | 0.22*** | 0.36*** | −0.28*** |
Species richness | −0.44*** | 0.37*** | −0.33*** | 0.35*** | 0.31*** | 0.46*** | −0.53*** |
Total abundance | −0.24*** | 0.22*** | −0.24*** | 0.36*** | 0.32*** | 0.41*** | −0.46*** |