TABLE 3.

Percent contribution of each predictor output from final boosted regression trees for blacknose shark, blacktip shark, nurse shark, Atlantic sharpnose shark, bonnethead, and immature sharks

Subgroup	Training data AUC	CV AUC Score ± SE	Marginal effect 1		Marginal effect 2		Marginal effect 3
			Variable	%	Variable	%	Variable	%
Blacknose shark	0.991	0.942 ± 0.007	Bottom Type	29.4	Temperature	24.1	DO	18.9
Blacktip shark	0.999	0.977 ± 0.005	Depth	54.4	Temperature	13.4	Bottom Type	8.2
Nurse shark	0.998	0.958 ± 0.008	Depth	28.6	Bottom Type	21.9	Temperature	17.3
Atlantic sharpnose shark	0.998	0.961 ± 0.006	Depth	29.8	Bottom Type	21.3	Temperature	17.5
Bonnethead	0.999	0.978 ± 0.007	Depth	50.3	Temperature	19.0	Middle Salinity	11.5
Immature sharks	0.998	0.975 ± 0.003	Depth	35.3	Bottom Type	22.4	Temperature	14.7