On growth of the octopusEledone cirrhosa

Boyle, P. R.; Knobloch, Daniela

doi:10.1017/s0025315400057283

Cited by 59 publications

(50 citation statements)

References 26 publications

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“…In smaller cuttlefish this process is probably more intensive, relating to the restricted coelome capacity. Such "regulative resorption" (Nigmatullin, 2000) has been observed in large-egg squids and octopods (Boyle and Chevis, 1992;Nigmatullin et al, 1996;Laptikhovsky, 1999;2001). It is very likely that all juvenile cuttlefishes have very high potential fecundity which, depending on their growth through foraging, is "adjusted" to the actual female capacity by resorption of any excess of oocytes.…”

Section: Discussionmentioning

confidence: 97%

Fecundity of the common cuttlefish, Sepia officinalis L. (Cephalopoda, Sepiida): a new look at the old problem

Laptikhovsky¹,

Salman²,

Önsoy³

et al. 2003

Sci. Mar.

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SUMMARY:The potential fecundity (PF) of advanced maturing and mature pre-spawning cuttlefish S. officinalis in the Aegean Sea varies from 3,700 to 8,000 (mean 5,871) oocytes, whereas the number of large yolk oocytes increases with mantle length from 130 to 839. Small oocytes predominate at all maturity stages. Spawning animals have a PF of some 1,000-3,000 eggs below that of pre-spawning females. This shows that intermittent spawning, which occurs in captivity, is a normal process in natural habitats. Empty follicular sheaths are resorbed very rapidly, and their number does not represent the number of eggs laid by the female prior to sampling. Regulative oocyte resorption was observed at early maturation in some cuttlefishes. -La fecundidad potencial (FP) de sepia S. officinalis en estado de maduración avanzada y pre puesta en el mar Egeo varia entre 3.700 y 8.000 (media 5.871) oocitos, mientras que el número de oocitos grandes aumenta con la longitud del manto entre 130 y 839. Los ovocitos pequeños predominan en todos los estadios de madurez. Los animales en puesta tienen una FP de 1.000-3.000 huevos menos que las hembras en pre puesta. Esto demuestra que una puesta intermitente, como ocurre en cautividad, es un proceso normal en el habitat natural. Las fundas foliculares vacías son absorbidas muy rápida-mente y su número no representa el número de huevos puestos por una hembra antes de su captura. En algunas sepias se observó la reabsorción de oocitos en primeros estadios de la maduración.

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Section: Discussionmentioning

confidence: 97%

Fecundity of the common cuttlefish, Sepia officinalis L. (Cephalopoda, Sepiida): a new look at the old problem

Laptikhovsky¹,

Salman²,

Önsoy³

et al. 2003

Sci. Mar.

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“…However, as has been shown in the large-egged oc to pod genera Muusoctopus (formerly Benthoctopus), Eledone and Sasaki opus, smaller oocytes might never grow to maturity and are subject to atresia because of intra-gonad competition for nutrient supply (Boyle & Chevis 1992, Laptik hovsky 1999a, 2001. Before degenerating, these oocytes could be confused with eggs from a newly developing batch.…”

Section: Introductionmentioning

confidence: 99%

Reproductive strategy of deep-sea and Antarctic octopods of the genera Graneledone, Adelieledone and Muusoctopus (Mollusca: Cephalopoda)

Laptikhovsky¹

2013

Aquat. Biol.

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Reproductive systems of spent brooding octopodid females of Muusoctopus longibrachus akambei, Adelieledone polymorpha and Graneledone macrotyla (Eledoninae) were collected in Southwest Atlantic and Antarctic waters. Their study demonstrated that the size distribution of post-ovulatory follicles (POF) is mostly unimodal, suggesting that they only lay 1 batch of eggs. These data, together with a reevaluation of the literature, revealed that deep-sea and polar benthic octopods are generally not multiple spawners. Females spawn a single egg mass simultaneously or as a series of several consequent mini-batches separated by short periods of time, making it difficult to distinguish them by either size or condition of their POF. Analysis of the length−frequency distribution of POF is a useful tool to reconstruct the spawning history of brooding females of cold-water octopods.KEY WORDS: Octopus · Spawning · Post-ovulatory follicle · POF · Reproductive strategy · Deep sea · Antarctic Resale or republication not permitted without written consent of the publisherAquat Biol 18: [21][22][23][24][25][26][27][28][29] 2013 described in the literature, not only among deep-sea octopods but for the entire order Octopoda. The ovary of a spent female of the Antarctic species Adelieledone polymorpha was described previously (Daly 1996). Two spent brooding females of Graneledone pacifica were collected together with 2 nonbrooding animals by a submersible from a depth of ca. 2600 m (Voight & Grehan 2000), and a spent female of Pareledone turqueti was mentioned by Barratt et al. (2008). Also, spent females of Muusoctopus, Sasakiopus and Graneledone are known from the Okhotsk Sea, but their ovaries were not de scribed (Nesis 1989).Spent and brooding females of deep-sea octopodids are difficult to collect, particularly in Muusoctopus and Graneledone. These deep-sea cephalopods attach their eggs to rocky outcrops and ledges (Voight & Grehan 2000, Drazen et al. 2003, Voight & Drazen 2004, where fishing nets are impossible to deploy. In respect to shallow-water species, it is surprising that the ovaries of spent females kept in captivity have not been investigated, despite egg brooding and development being monitored and described in numerous octopods.The number of POF might provide precise information about the number of eggs that have been re cently laid in deep-sea and Antarctic squid (Nesis et al. 1998, Laptikhovsky et al. 2007, Bush et al. 2012. Initially these follicles in fish and cephalopods are distinct 3-dimensional structures, but they rapidly de teriorate and are resorbed, which makes them a very convenient tool with which to study spawning frequency. Decreasing temperatures in crease the time that POF can be de tected. In small-egged (eggs of 1− 2 mm) fish and squid species, POF de generate in less than 24 h (tropical species, spawning temperature 20− 25°C) to ~48 h (temperate species, spawning temperature 10−19°C), and up to 6 wk at 9°C (Hunter & Macewicz 1985, Fitzhugh & Hettler 1995, Sauer et al. 2002, Macchi & Pá...

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“…Octopodidae species, there have been several studies on aspects of reproduction, including reproductive ecology (Smale and Buchan, 1981;Boyle and Knoblock, 1983;Forsythe and Hanlon, 1988;Perez & Haimovici, 1991;Cortez et al, 1995), and changes in biochemical components with gonad developmental stage (Chung et al, 2004), besides, on physiology (Taki, 1941;Andrews and Tansey, 1983;Che et al, 1992), on taxonomy and ecology (Boyle and Knobloch, 1982;Takashi, 1984 a,b;Mangold, 1990, Aronson, 1991McQuaid, 1994;Villanueva, 1995;Nixon and Mangold, 1996;Moltschaniwskyj & Doherty, 1995), and morphology (Bairati et al, 1995).…”

Section: Introductionmentioning

confidence: 99%

Incubation Time Required for Hatching, and Ecological Characteristics of the Mode of Life Related with Total Numbers of the Suckers on Each Short Arm of the Hatched Juvenile Larvae of Octopus ocellatus (Cephallopoda: Octopodidae), in Western Korea

Kim¹,

Jiang²

2016

The Korean Journal of Malacology

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The incubation time required for hatching of O. ocellatus were investigated through the processes of egg and embryonic developments by the dissecting microscopic and visual observations. And differences in ecological characteristics of the plankton mode of life or the benthic mode of life according to total numbers of the suckers on each short arm of the hatched juvenile larvae of O. ocellatus were studied by comparisons with other octopodidae species. Compared with the recent a few results reported by other researchers associated with the incubation time required for hatching by female adult mother of O. minor (73-90 days after spawning at 20.9-21.5℃ ranges), in this study, the incubation time required for hatching by female adult mother of O. ocellatus was 56-57 days after spawning at 11.0-20.4℃. Therefore, the incubation time required for hatching by female adult mother varied with Octopodidae species. In this studies, each ovarian egg laid by a female was connected to an egg string attaching to the surface of the wall or bottom of vacunt shell of Rapana venosa. Egg and embryonic developments of this species were studied in the indoor aquaria, in the specific gravity ranging 1.024-1.025. the hatched juvenile of O. ocellatus is 10.3 mm in the mean total length and 4.5 mm in mantle length, and each of its short arms has 18-20 suckers. The just hatched juvenile larvae of O. ocellatus enter the benthic mode of life (benthic larval stage) after hatching. In particular, regarding differences in ecological characteristics of the mode of life according to total numbers of the suckers, O. vulgaris may not need to have many suckers because they enter the planktonic mode of life after hatching, however O. ocellatus may need to have many suckers, because they should adapt to the benthic mode of life. And also the just hatched juvenile larvae of O. minor (bearing many suckers more than O. ocellatus) enter the benthic mode of life (benthic larval stage) after hatching. Therefore, the total number of the suckers on each short arm of the hatched juvenile larvae can be used for determining whether an octopus species has planktonic larval stages or benthic larval stage (benthic mode of life). In particular, The intracohort cannibalism phenomena appeared at the hatched juvenile larval stage because the larval stage of O. ocellatus and O. minor enter into the benthic larval stage in the early stage, unlike entering into the plaktonic larval stage in other Octopus species such as O. vulgaris: at this time, the early hatched larvae fed the late hatched larvae (they are the same species and almost same ages). Therefore, the intracohort cannibalism pheneomena occur in the just hatched juvenile stage of only O. ocellatus and O. minor.

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On growth of the octopusEledone cirrhosa

Cited by 59 publications

References 26 publications

Fecundity of the common cuttlefish, <i>Sepia officinalis</i> L. (Cephalopoda, Sepiida): a new look at the old problem

Fecundity of the common cuttlefish, <i>Sepia officinalis</i> L. (Cephalopoda, Sepiida): a new look at the old problem

Reproductive strategy of deep-sea and Antarctic octopods of the genera Graneledone, Adelieledone and Muusoctopus (Mollusca: Cephalopoda)

Incubation Time Required for Hatching, and Ecological Characteristics of the Mode of Life Related with Total Numbers of the Suckers on Each Short Arm of the Hatched Juvenile Larvae of Octopus ocellatus (Cephallopoda: Octopodidae), in Western Korea

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