Biometrical relationships in developing eggs and neonates of Octopus vulgaris in relation to parental diet

Table 3 Swelling pattern of eggs of different species

Species	Family	Var.	Temp.	Pattern	Data source
I. pygmaeus	Idiosepiidae	L, l	18.5–22.6	=+	Natsukari (1970)
L. forbesi	Loliginidae	L, l	12–15	++	Boletzky (1987)
L. vulgaris	Loliginidae	L, l	12–15	=+	Boletzky (1987)
S. australis	Loliginidae	V	13;16	=+	Steer et al. (2003)
I. coindetii	Ommastrephidae	L	17	=+	Villanueva et al. (2011)
S. subaculeata	Sepiiidae	L, l	18–28	−+	Choe (1966)
S. japonica	Sepiidae	W	20–22	−+	Gomi et al. (1986)
S. officinalis	Sepiidae	W	12;15;18;21	−+	Bouchaud and Daguzan (1990)
R. fontaniana	Octopodidae	W	12	++	Uriarte et al. (2009)
R. fontaniana	Octopodidae	L	12	=+	Uriarte et al. (2009)
O. vulgaris	Octopodidae	l, V, W	18–22	++	This article
O. vulgaris	Octopodidae	L	18–22	=	This article

Biometric variables were made on egg chorions for O. vulgaris and I. coindetii and on egg capsules for the rest of species. Temperature in °C. Swelling patterns for O. vulgaris were assessed on the basis of Ancova’s results; for the remaining species, the assessment was based on visual inspection of the published results. Temp. temperature, L egg length, l egg width, V egg volume, W egg wet weight. Swelling pattern: −+ a decreasing phase followed by an increasing phase; =+ constancy followed by an increasing phase; ++ a slow increasing phase followed by a fast increasing phase; = constancy all the time

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