Lugworm (Abarenicola affinis) in seagrass and unvegetated habitats

Table 3 Results of multiple linear regression analyses of Abarenicola affinis abundance and biomass and habitat variables in seagrass and unvegetated habitat (all seasons combined, n = 60) (significant values in bold; \(R_{{_{\text{semipart}} }}^{ 2}\) = squared semi-partial correlation coefficient, indicating the proportion of variance explained by the inclusion of the predictor variable)

Habitat type	Abarenicola affinis abundance			Abarenicola affinis biomass
Habitat type	F	R ²	P	F	R ²	P
Seagrass	22.75	0.678	<0.001	26.93	0.714	<0.001
Unvegetated	0.90	0.077	0.490	0.94	0.080	0.464

Seagrass habitat	F	\(R_{{_{\text{semipart}} }}^{ 2}\)	p	F	\(R_{{_{\text{semipart}} }}^{ 2}\)	p
Seagrass below-ground biomass (g dry weight)	4.87	−0.170	0.032	6.57	−0.187	0.013
Distance from the shoreline (m)	39.09	−0.483	<0.001	20.29	−0.328	<0.001
Sediment proportion of fines (%)	1.62	0.010	0.209	12.42	0.257	<0.001
Organic matter content (%)	0.36	0.046	0.553	0.72	0.062	0.400
Chlorophyll a content (µg/g sediment dry weight)	0.29	−0.041	0.596	0.17	−0.030	0.684

ISSN: 1438-3888