Adaptations of early development to local spawning temperature in anadromous populations of pike (Esox lucius)

Table 1 Effects of population and temperature treatment on offspring performance in Esox lucius pike

Trait	Type	num d.f.	den d.f.	F-value	P-value
Hatching success	glmer
Pop x Treat		2	118	11.08	< 0.0001
Day degrees until hatching	lmer
Pop x Treat		2	94.1	4.77	0.008
Fry survival	glmer
Pop x Treat		2	110	5.63	0.003
Fry body length	lmer
Pop x Treat		2	1701.9	22.85	< 0.0001
Among family variance in hatching success	lm
Pop		1	3	4.79	0.12
Treat		1	3	0.10	0.78
Pop x Treat		1	2	1.76	0.32

Comparison of effects of temperature on different offspring performance measures in two populations of Esox lucius. Effects of the interaction between population and temperature treatment on hatching success, day degrees until hatching, fry survival, and fry body length (5 days post hatch) are presented. The column ‘Type’ indicates which type of statistical model that was used: generalized linear mixed model (glmer), general linear mixed model (lmer), or general linear model (lm)

ISSN: 2730-7182