A common-garden experiment to quantify evolutionary processes in copepods: the case of emamectin benzoate resistance in the parasitic sea louse Lepeophtheirus salmonis

Table 4 Models applied to survival data from the emamectin benzoate challenge, ranked by AIC

Model	Fixed effects	Random effects	df	AIC	ΔAIC
eb.m13	Family, Exposure time, Gender	-	19	2 084.7	0
eb.m12	Family, Exposure time	-	18	2 099.3	14.6
eb.m11	Family	-	17	2 109.4	24.7
eb.m1	Exposure time, Gender, Group (1xH)	Family	7	2 111.9	27.2
eb.m2	Exposure time, Gender, Group (2xH)	Family	8	2 113.4	28.7
eb.m4	Exposure time, Gender, Dam	Family	6	2 115.5	30.8
eb.m3	Exposure time, Gender, Sire	Family	6	2 117.6	32.9
eb.m5	Exposure time, Gender	Family	4	2 125.0	40.3
eb.m6	Exposure time, Group (1xH)	Family	6	2 126.0	41.3
eb.m7	Exposure time, Group (2xH)	Family	7	2 127.5	42.8
eb.m9	Exposure time, Dam	Family	5	2 130.1	45.4
eb.m8	Exposure time, Sire	Family	5	2 132.2	47.5
eb.m10	Exposure time	Family	3	2 139.5	54.8
eb.m14	Exposure time	-	2	2 537.9	453.2

GLMs and GLMMs testing for the relative influence of different background covariates on the EB trial results. The models are ranked based on AIC, where a lower AIC value reflects a better model fit to the data.
Response variable: Status after the EB challenge; living or immobilised/dead.
Covariates (fixed and/or random effect variables): Family, Group (1H), Group (2H), Sire and Dam = as listed for Table 3. Exposure time = 20, 21, 22 or 23 hours of EB exposure. Gender = female or male.
Test results: degrees of freedom (df), AIC values and changes in AIC (ΔAIC).

ISSN: 2730-7182