Table 2.

Results of db-RDA testing the relationship between coral feeding activity and environmental variables (bottom temperature, acoustic backscatter, northward and eastward flow speeds, net surface primary production and month). Adjusted R² and significance levels of db-RDAs and partial db-RDAs are indicated. Data collected by the two ADCPs 13 and 2 m above the seafloor between March and December 2020 were analysed separately. *p-value < 0.05; **p-value < 0.01; ***p-value < 0.001.

environmental parameters	13 mab		2 mab
	Adj. R2	significance	Adj. R2	significance
full model	0.33	***	0.39	***
bottom temperature	—	NS	—	NS
northward flow speed	0.064	***	0.010	*
eastward flow speed	—	NS	0.018	**
acoustic backscatter	0.067	***	0.042	***
average surface primary production	0.12	***	0.17	***
s.d. primary production	0.021	**	0.047	***
month	0.29	***	0.33	***