1984
DOI: 10.1017/s0025315400030265
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Male reproductive maturity in the octopus,Eledone cirrhosa(Cephalopoda: Octopoda)

Abstract: Males of Eledone cirrhosa grow to a size little over 600 g and normally have well-developed, and presumably active, reproductive organs from about 200 g upwards. Total weight of the genital bag is well correlated with total body weight (r= 0·906). Growth of the testis precedes that of the spermatophoric sac, and the size of neither of these reproductive components is predictable from body weight. The sizes of these organs and the estimated number and length of stored spermatophores are given for 100 g interval… Show more

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Cited by 15 publications
(7 citation statements)
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“…Several male reproductive studies in different species of octopus agree that male mature faster than females (Boyle & Knobloch;Silva et al, 2004;Rodríguez-Rua et al;Akyol et al, 2007;Leporati et al), which is consistent with the observations of this study, where the smallest mature male was 6.7 g, and the smallest mature female 22.8 g.…”
Section: Discussionsupporting
confidence: 92%
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“…Several male reproductive studies in different species of octopus agree that male mature faster than females (Boyle & Knobloch;Silva et al, 2004;Rodríguez-Rua et al;Akyol et al, 2007;Leporati et al), which is consistent with the observations of this study, where the smallest mature male was 6.7 g, and the smallest mature female 22.8 g.…”
Section: Discussionsupporting
confidence: 92%
“…The distinctive and peculiarity in the oogenesis of these species, is the formation of a second layer of follicular cells and the follicular invagination, which generate the yolk secretion (Boyle & Knobloch). Although there is much discrepancy in the number of stages established and nomenclature assigned, most studies agree on a stage for the secondary follicle formation, and subsequently the formation of the chorion (Boyle & Knobloch;Arkhipkin;Gabr et al, 1998;Olivares-Paz et al;Rodriguez-Rua et al;Boyle & Rodhouse;Jiménez-Badillo et al).…”
Section: Discussionmentioning
confidence: 99%
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“…Males appear to mature earlier, coinciding with the shift between growth phases, whereas females tend to mature in the second slower phase of growth (Semmens et al 2004). Assessing reproductive investment has been achieved for a few species (Boyle & Knobloch 1984, Perez & Haimovici 1991, Cortez et al 1995 but estimating the onset of sexual maturation remains problematic, as the influence of food availability and temperature on this aspect of reproduction has yet to be quantified. Given the deficiency in information, we did not incorporate reproductive growth to avoid introducing unsupportable complexity into the model.…”
Section: Conceptmentioning
confidence: 99%
“…In the course of recent studies on the growth and reproduction of Eledone cirrhosa from the North Sea (Boyle & Knobloch, 1982,1983,1984 animals which had remained in aquarium conditions for 5 days or over were separated from the analysis. We now compare the state of sexual maturity of these aquarium animals with that found in animals fresh from the sea.…”
Section: Introductionmentioning
confidence: 99%