Variation in early developmental stages in two populations of an intertidal crab, Neohelice (Chasmagnathus) granulata

Table 2 Neohelice granulata. Three-way ANOVA to test the effect of time within the reproductive season (dates: beginning and end), pre-hatching temperatures (18 and 27°C), and number of days of initial feeding, and their interactions, on the stage duration of zoea I from Mar Chiquita and San Antonio

Factor	df Effect	MS Effect	df Error	MS Error	F	P-level
Mar Chiquita
Date (D)	1	1.487	56	0.284	5.235	0.025*
Temperature (T)	1	0.086	56	0.284	0.304	0.583
Days of feeding (F)	2	8.798	56	0.284	30.974	0.000*
D × T	1	0.072	56	0.284	0.256	0.614
D × F	2	0.232	56	0.284	0.820	0.445
F × T	2	0.453	56	0.284	1.597	0.211
D × F × T	2	0.358	56	0.284	1.262	0.290
San Antonio
Date (D)	1	14.294	67	0.131	108.333	0.000*
Temperature (T)	1	0.021	67	0.131	0.161	0.688
Days of feeding (F)	2	3.068	67	0.131	23.258	0.000*
D × T	1	1.440	67	0.131	10.913	0.001*
D × F	2	0.584	67	0.131	4.429	0.015*
F × T	2	0.876	67	0.131	6.640	0.002*
D × F × T	2	0.590	67	0.131	4.474	0.014*

ISSN: 1438-3888