TABLE 2.

Percent survival of Artemia (means ± standard errors of three replicates) after 48 h of challenge with different V. campbellii, V. harveyi, and V. parahaemolyticus isolates, with and without the natural furanone (5Z)-4-bromo-5-(bromomethylene)-3-butyl-2(5H)-furanone (20 mg/liter)

Treatment	Expt 1		Expt 2
	− Furanone	+ Furanoned	− Furanone	+ Furanoned
V. campbelliia
LMG21361	43 ± 4	62 ± 4*	43 ± 3	80 ± 3**
LMG21362	32 ± 4	75 ± 3**	38 ± 3	72 ± 4**
LMG21363	18 ± 4	58 ± 4**	12 ± 4	55 ± 5**
LMG22888	48 ± 4	63 ± 2*	48 ± 6	77 ± 6*
LMG22889	50 ± 3	63 ± 4	48 ± 4	62 ± 6
LMG22890	38 ± 3	67 ± 4**	45 ± 6	70 ± 5*
LMG22895	52 ± 6	73 ± 4*	50 ± 5	83 ± 2**
V. harveyib
BB120	52 ± 4	87 ± 3**	60 ± 3	78 ± 2**
LMG22891	62 ± 4	83 ± 3*	53 ± 6	73 ± 2*
LMG22893	55 ± 3	78 ± 2**	57 ± 3	75 ± 3*
LMG22894	48 ± 4	75 ± 5*	43 ± 4	72 ± 6*
V. parahaemolyticusc
CAIM170	55 ± 6	82 ± 4*	57 ± 2	78 ± 4*

^aSurvival of unchallenged nauplii was 85% ± 3% in the first experiment and 75% ± 3% in the second experiment.

^bSurvival of unchallenged nauplii was 77% ± 2% in the first experiment and 83% ± 3% in the second experiment.

^cSurvival of unchallenged nauplii was 85% ± 5% in the first experiment and 83% ± 6% in the second experiment.

^d*, significantly different from treatment with the same pathogen and without furanone (P < 0.05); **, significantly different from treatment with the same pathogen and without furanone (P < 0.01).