371
19 Enteroctopus megalocyathus
den quality and the reabsorption rate of the eggs in the ovary, can lead to varying
fecundity in females. In accordance with Chong et al. (2001) and based on the
ovocytes contained in the ovary, the expected fecundity of E� megalocyathus could
Fig. 19.2  Enteroctopus
megalocyathus. Female
octopus with clutches
obtained at Hatchery of
Marine Invertebrates of the
Universidad Austral de Chile
(HIM-UACh). The measuring
slide indicates 10 cm. (Photo
of the authors)
Table 19.2  Enteroctopus megalocyathus. Absolute values of fecundity and other reproductive
characteristics
Fecundity per
female
Method to estimate fecundity of
females
Egg total length
(mm)
Author
1,000–20,000
Number of oocytes hydrated from
subsamples of the gonad
Chong et al.
(2001)
1,469
Samplings on natural egg layings 10.7
Ortiz et al. (2006)
2,500–3,600
Not indicated
14.5
Ré (2007)
2,129 ± 1,182
Samplings of egg layings obtained
from the broodstock conditioning of octopus in laboratory
7–11
Farías et al. (2011)
2,052 ± 368
Samplings of egg layings obtained
from the broodstock conditioning of octopus in laboratory
8.5 ± 0.1 (5.8 %
FML)
a
Gutiérrez (2012)
2,321 ± 536
Samplings of egg layings obtained
from the broodstock conditioning of octopus in laboratory
9.3 ± 0.1 (6.4 %
FML)
a
Uriarte et al.
(2013)
FML female mantle length
a
Calculated from the results of Gutiérrez (2012) and Uriarte et al. (2013)