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Table 3 Three-way ANOVA results considering biological descriptors values

From: Benthic molluscan macrofauna structure in heavily trawled sediments (Thermaikos Gulf, North Aegean Sea): spatiotemporal patterns

Source of variation Species number (S) Abundance (N) N1 N21
Sediment profile df = 2 df = 2 df = 2 df = 2
MS = 1.532 MS = 8.217 MS = 0.422 MS = 0.016
F = 92.066 F = 43.408 F = 7.736 F = 14.272
p = 0.001* p = 0.001* p = 0.022* p = 0.005*
Station (Sediment profile) df = 6 df = 6 df = 6 df = 6
MS = 0.017 MS = 0.189 MS = 0.055 MS = 0.001
F = 0.608 F = 1.160 F = 2.610 F = 1.324
p = 0.721 p = 0.370 p = 0.053 p = 0.297
Sampling period (Station-Sediment profile) df = 18 df = 18 df = 18 df = 18
MS = 0.027 MS = 0.163 MS = 0.021 MS = 0.001
F = 1.417 F = 3.489 F = 1.141 F = 2.794
p = 0.162 p = 0.001* p = 0.342 p = 0.002*
  1. Summary of results of three-way ANOVA considering species number (S), species abundance (N) and Hill’s diversity indices (N1 and N21) for factors sediment profile (effect of different sediment layers-three levels: 0–5 cm, 5–10 cm and 10–20 cm down through the sediment), station (spatial effect-three levels: station IP-10, IP-17 and IP-38) and sampling period (temporal effect-three levels: prior to trawling period, 30 and 120 days after intense bottom trawling period) (asterisk denotes statistically significant results).